diy transmission cooler flush

shouldn't really need to flush it as there shouldnt be that much foreign material in the trans. well what about cleaning it out and replacing the trans? Lubegard makes a pretty nice flush for ATF coolers and lines. Full synthetic. '02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case. It will usually make it worse. i bought an aftermarket one last year to install but ended up returning it because i couldnt find a good place to mount it. I'm sure there is better stuff but sometimes you used what you have at hand. Talk about the 12V engine and drivetrain here. Should I flush the tranny too. That stuff is a really good solvent and leaves no residue as it completely evaporates. I will be changing the inline filter next to the radiator. $1170 Refresh after wrty, No Core , Dyno test. I have not changed by my transmission fluid and filters ever and as I approach 100,000 miles I thought I better change out all of the ATF fluid. So, I cant see that happening with the converter still stuck between the flywheel and front pump of the trans, and no drain plug. 6. You know the flush is for the cooler only, your not going to put any solvent in your trans. The basic idea is to use the transmission's own internal pump to push fluid out of a disconnected line, and replace with new fluid going into the pan. https://www.facebook.com/groups/libertydiesels/. 2) Rinse it with alcohol. How do I flush transmission cooler lines and trans cooler??? Gen 5 Camaro Tuning, Diagnostics, Dyno results, Hot Rod Power Tour/ Pump Gas Drags/ Drag Week. I have done a complete transmission fluid flush three times now (04 4Runner, 09 Accord, 06 4Runner). I didn't want to spend the money to take it to a shop with a flush machine. I guess if it has never been changed then the flush might make the most sense. I've heard of this old school flush method but not seen a how to on the Jeep. B&M Transmission SuperCoolers are the exact same re-boxed stacked plate cooler, they're even branded the same, and come with the same accessories. Maybe a local auto parts might carry this stuff too, I just order it along with whatever parts I may be getting. Are you going to save the old fluid when you drop the pan and put back in the old before you flush it? Do you really want to risk the rebuild to a plugged cooler that will damage the new tranny? After a mad scramble into the house for my spare key I shut it off just at the 2 quart mark, And a word of caution, if you use the trans to pump the fluid, roll down a window. At my local dealer, the answer is NO, they do not remove the pan. well five cans of brake cleaner later, my trans cooler flows like new. Toyota 4Runner Forum - Largest 4Runner Forum, Classifieds - buy & sell (no commercial ads please), Engines / Suspension / Wheels / Tires / Audio / Accessories, European T4R & Hilux Surf Clubs (click to view), Asia & Oceania T4R & Hilux Surf Clubs (click to view), Africa & Middle East T4R & Hilux Surf Clubs (click to view), Latin America / Carribbean T4R & Hilux Surf Clubs (click to view), DIY Transmission flush on an '08 Sienna XLE - Toyota Nation Forum : Toyota Car and Truck Forums, The real stats on gun murders in America compared to the world (link), https://www.youtube.com/watch?v=WngXE_7vg-Q, https://www.tacomaworld.com/threads/mission.68462/. I just put some garden hose over both lines then pumped a gallon of Walmart Dexron III through the lines and coolers with a hand pump. You could run a degreaser and water mix through it several times and then rinse it really well. So, when someone says "flush" a trans, I think of this. Open the line going out of your tranny to the cooler and place in drip pan. Jack of all trades can likely do a respectable job in most instances under moderate conditions, but how do they respond when pushed? What's the best procedure and fluids to use for an at-home application? I use 1 can unless the transmssion has had "issues", like a converter meltdown, burned clutches, etc. I have it situated on the exit of the cooler in front of the AC condensor. It looked great. The Fora platform includes forum software by XenForo, http://www.pqiamerica.com/ATFdecember2012/valvolinemaxATF.htm, http://www.partswebsite.com/cstoyotaparts/, Problems, Maintenance, and Repair (Gen 2), Problems, Maintenance, and Repair (Gen 3), VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada, siennachat.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. I had to educate the parts counter guy first about filters and the he called the service manager over to show that there were serviceable filters in the CVT. Get it clean. In the flow mode, an electronic flow meter is used to measure the flow capability of the ATF oil cooling system. Great! The following errors occurred with your submission, LS1TECH - Camaro and Firebird Forum Discussion, 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits, 2yr Wrty Trans/conv combos. This is for 1994-1998.5 engine and drivetrain discussion only. (Do It Yourself). Terms of Service - What do you think of this procedure? Here is a picture of a magnet from inside the pan at 38k along with the plug. If it was water logged go pay FLUSH it, just be sure wherever you take it they ALSO drop pan, change filter and really pump a lot of fluid through it:cheers2:. Follow the directions for the common "tranny cooler line" flush. Every time I buy a vehicle with an unknown history, I'll do a full flush using the return line method. To answer your actual question: The Gen5's CVT does not have a cooler in the radiator; the cooler is bolted directly to the transmission housing, and does not have CVT fluid lines you can tap. Take your pick. How do I clean/flush Tranny Cooler and Lines before trans install? I stopped just before the dirty jug was full, emptied it did the whole thing over again. "If" you haven't gotten the tranny overheated just a thorough "drain via the pan", filter and fluid is all you need. After all, how can individual specifications that vary by so much be met by a single product? In other words, if I had it done at my Honda service dept, would they drop the pan too, or would they just do what Ive stated above? JavaScript is disabled. High risk here. Privacy Statement - Ive changed my fluid twice now but only just drain, drop the pan, clean the magnets and change the filters. The research I did says it comes out slowly, about 1-2 qts a min. Thats enough to flush out the old stuff and have the correct fluid in when you are done. If anyone could write a step-by-step process, that would be great. Hydraulic fluid is the lifeblood of an automatic transmission, and heat and contamination are the enemies of that precious liquid. For a better experience, please enable JavaScript in your browser before proceeding. 2" OME HD coil lift, BDS shocks, and 1" body-lift. Hey. What are the pressures inside trans cooler lines. Current: '15 Sienna Limited Premium (FWD), '14 Subaru Outback, '18 Subaru Forester, '18 Toyota RAV4. Looks like there are quite a few ways of replacing the fluid. Be aware that some coolers have a theromstat bypass built in. I had 53,000 miles when I did it and I was scared of what I was going to find. View unanswered posts | View active topics. Yes, it's cheap. You only "flush" the cooler. If you simply drain what's in the pan, you will typically only get about a third of the fluid out of the transmission. Mud - Have you used Kooler Kleen, Transflush or both? Thanks. I found this video yesterday and was wondering what y'all thought of it. Do it more often to keep the fluid fresh but, ATF+4is very tough stuff compared to fluids of old so, @50K or "normal" driving would be fine IMHO (Excessive HEAT is transmissions biggest enemy)..you certainly can flush via the lines, I've done it but, it takes a couple folks, a LOT of fluid and somehow, it does make a mess! Small world! I've used carb cleaner, followed by alcohol, and lots of compressed air. :cheers2: How many times would you have to change the fluid to be at all new fluid.Say, if there was water in it? there is a repair kit to rebuild. This is a short section that tells a bit on how it works. 4th Gen High Performance and Accessories 2010 and Up, 4th Gen Engine and Drivetrain-2010 and Up, 3rd Gen High Performance and Accessories (6.7L Only), 3rd Gen Engine and Drivetrain -> 2007 and up, 3rd Generation Ram - Non Drivetrain - All Years, Natl. After a mad scramble into the house for my spare key I shut it off just at the 2 quart mark. Clean each section of line and coolers. Aftermarket filters won't clean down to the same micron size as magnefine and i wont ever have to drop the pan to replace it. Isn't it just a cleanable screen and magnets in the pan? So they do shed more material at first. If the fluid is changed between 30 & 40k you would never have to worry about anything more than what fluid is in the pan. Now the fact that he let the engine run for 10 minutes with no fluid in the trans makes me wonder if he damaged his tranny. It will make the new transmission last a whole lot longer, and catches the small particles that will only wash out of the oil cooler when it starts bouncing down the road. siennachat.com is not in any way affiliated with Toyota Motor Corporation. no overheating, slamming gears, etc., and 50K pan clean/filter should be FINE at 50K/100K and maybe think flush at 150K, 30K for the worryers and flush at 120K:cheers2: Why does everyone recommend changing the tranny fluid earlier than the service manual recommends. Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more! Still trying to figure out how to upload files and pics. Thanks guys for all of the information. Not sure where you can get it locally you might try a trans shop but a can of cooler flush works well followed by blowing it out with air. Archive - I hope its okay to just post the links here. Nice writeup. I.E. Manage Preferences - The 545RFE holds 14 qts of ATF+4 so you changed about 2/3 of the fluid out. I rebuilt and installed trannies for 4 years. Board index Jeep CRD / E85 / Alternative Fuels Liberty CRDLove that Torque!!! A forum community dedicated to all jeep owners and enthusiasts. It's cheap insurance to ensure the tranny lasts. For a better experience, please enable JavaScript in your browser before proceeding. Advertising - I just briefly looked at Alldata process for our 2010 ATF change. I have used paint thinner and air pressure. I agree with the B&M coolers, personally I use a 70268 in tandem with the stock cooler on my Buick, and I have never seen the trans temps rise above 160-170 degrees, ever. you are wasting time and money replacing that filter, it's only to catch debris if the trans fails, Honda CR-V Owners Club forum, the best hang-out to discuss CVT, Hybrids, trim levels and all things CR-V, The Fora platform includes forum software by XenForo, Brakes, Tires, Wheels, Steering & Suspension, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada, crvownersclub.com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. Content on crvownersclub.com is generated by its users. If you'd been local I'd have given you the two unopened one gallon containers that I still had hanging around after nearly killing a Subaru tranny that called for Dex-IIIs (something that MaxLife also claims to replace). Do Not Sell My Personal Information -, By logging into your account, you agree to our, Location: Turnin' Wrenches Infractions: 005, Location: Your girl's back door giving her the long stroke while you're at work. Not necessarily a bad method for flushing the transmission, but not the best either. Thought someone might find this useful so I posted it. MaxLife bills itself as a universal / fits-all fluid suitable for use in just about every transmission out there in common use today. A real trans flush machine doesnt flush the tranny, it flushes the cooler, and runs a solvent like parts cleaner fluid through it. this is the website where i bought my oil. I think that for your purpose 1 can is plenty. fluid. You can buy. A case of Type IV for $80-90. My only concern would be with respect to the filters but I don't know the best answer as there are 2 options. The fluid coming out the line was clean. It was about half of the material that was on there at 18k. Fantastic post!! Thanks for everyone's input. The following errors occurred with your submission, Dodge Diesel - Diesel Truck Resource Forums, 1st and 2nd Generation Ram - Years 1989-2002. Privacy Statement - The torque converter holds a good amount, as do the transmission internals, fluid lines, and cooler(s). And you will never get all of the fluid out of the converter, even the ones with drain plugs, I used to put the whole thing in a parts cleaner and remove the plug and sit there with the hose in it until it tunred from red(or brown if the trans was bad) to green(parts cleaner fluid), this would take about 15 minutes in some cases. JavaScript is disabled. You can find OEM on ebay for $75 for a case of Type IV from this seller ". Somewhere else I read the following suggestion: wouldn't that solve it? I have read your posts, but I am not sure which lines to hook up to for the flush, and how would I get a garden hose to seal on the trans lines? If you get to the point of slipping, no flush, trans fluid change will make it better. I'm sure this topic has been beat to death (maybe not as much as the "trans cooler bypass" topic) but I couldn't find a thread that showed this particular method. Maybe depends on what you see when you drop pan and change filter. I'll try to post what and how I did it. Planning to do a full flush (8years and 88K miles) and have access to a T-TECH ATF flush machine which was one of the first introduced to the industry in the 90's. When you are done, install a filter adapter and filter on the return line. Each manufacture requires specific friction modifiers to work correctly. Otherwise you are just going to waste 4-5 qts of the stuff.but I am not sure I like the idea of putting in a clean filter and then running all the 'dirty' fluid through it. I like Valvoline MaxLife motor oil but Toyotas seem to be finicky with non-OEM brands of ATF. #8. SiennaChat is the forum community to discuss problems, maintenance, repairs, mods, projects, specs and all things Toyota Sienna. This is the one with the large visible cylinder that inputs new fluid at the same pressure and flow rate the tranny pump generates. You guys going to laugh at me, but this is what I used and it only took 3 mins. For a better experience, please enable JavaScript in your browser before proceeding. I'm planning this job for first time when the weather breaks here. Alternate is to pay about $20 for Mobil 3309 which is supposedly who private labels for Toyota. Then swap the cooler pressure/drain hoses and use the transmission to "flush the cooler" with fluid flow in reverse. 1maniac right. I had enough extra fluid so I also change the transfer case oil at the same time. 34" Hankook RT09 MT's on 16" AEV Bridgers. Automatic transmissions were some mysterious slushbox positioned between your engine and transfer case. I put roughly 8 litres in dipstick tube and 5 in the pan = 13 litres or 13.73 quarts. I am not sure which lines to hook up to for the flush, and how would I get a garden hose to seal on the trans lines? The exception being to remove improper fluid. Watch the color of the fluid as it comes out of the cooling line. JavaScript is disabled. The only Honda approved service is a drain and fill 'pan service'. Change ATF every 15-20k and yes, it does shift crisper every time its change. 44H. Buy the right stuff. While we were at it, we also dropped the pan and installed a fresh filter, so our transmission should be all set for the next few years of driving. '07 JK 2dr Sahara - auto w/ 4.10's and rear locker. If you use a different fluid, it will be close but not what the transmission was designed for. We finished the work in just a couple of hours with common tools and a few supplies that we used to drain and catch the old fluid. Max Life works great on my 98 Sienna. If you go 100k before you change your fluid, then it would be good to get as much fluid out as possible. 2016 Obsidian Blue Pearl CR-V EX-L AWD (Rent to Own). I didn't get stuck; I just experienced a temporary lack of momentum. I have done lots of research and it seems very easy, but where is the best place to open the tranny cooler line to pump out the old stuff? There was a time when real wheelers supposedly only drove stick. Question: any thoughts on Valvoline MAX Life ATF which shows specs consistent with the Sienna Type T-IV. Jack of all trades usually end up being shown as masters of none. I'm not familiar w/ content of Jeep auto trans pan/capacity as mine is manual and I've been working on too many Toyotas and Mazdas last few years just did my at-home tranny service and B&M cooler install. Fast-forward into the modern world where automatic transmissions are now very reliable and commonly in use by four-wheelers. Then I blew out the fluid with air, I believe the rear line is the return. In the flush mode, transmission fluid is cycled through the transmission oil cooling system. And 4T60Es are known for running hotter than your 65. so can we stay on topic here. I swapped the filter, slapped the pan back on and was done with it. In hard driving and towing conditions the manual says to drain and fill at 60,000? i just want to use the stock one. Started the jeep and as the dirty fluid filled the one jug I poured an equal amount of new ATF + 4 into the dipstick tube. but if you still want to, and since it has trans fluid through it i'd say flush in a solvent tank then hit it with air on one end then the other end clean it good and re-install.. The old fluid does not get circulater through the new filter(s). Keep the reddish pinkish color is key. Once it is all new fluid I do a drain and fill once a year or every 15-20k miles. It was actually pretty quick and easy to do myself. When you have replaced the transmission quantity of ATF and the fluid changes color you are done. Why is everyone concerned with changing their fluid before they need to? Changing tranny lines. In other words, the fluid degradation can occur during short exposure to high heat or during longer exposure to moderately high heat. and Regional Chapters / Special Events, http://www.lubegard.com/automotive/tler_kleen.html. That is exactly how I do mine. is there any way i can do this myself. Roads? I watched that video and from what I could see, he did not vent the top jug so the atf couldnt flow out of the jug. Cleaning it out well doesn't solve the problem. Also, where do I find these hand pumps you talk about? It's $17 per gallon at Walmart. not putting in an aftermarket cooler or going to the dealer hence the DIY. I did our 2008 CR-V 5AT via the tube exiting the transmission filter a couple of times. 1) Flush it with kerosene. J 45096 is a self-contained unit utilizing a 12-volt flow meter, shop air supply and DEXRON(R) VI automatic transmission fluid (ATF). High-pressure air is automatically injected into the fluid stream adding agitation to the ATF oil to enhance the removal of contaminated ATF oil and debris. I have used the Transflush - it comes in a larger size can, 18oz I think. In general, transmission fluid starts to degrade as temperature rises, and that degradation is said to be cumulative over the life of the fluid. The Jeep gets driven hard, wheeled a ton, turning 34's with 4.10's on very long steep roads you get my point. For a better experience, please enable JavaScript in your browser before proceeding. Advertising - That's $8.67/Qt. What controls shift points besides tps and computer command? Some members don't think it's as good as Type IV. I've used. Hit a rock with the transmission pan and all the magic fluid would leave said transmission, rendering your rig useless while buzzards circled overhead. Can a full container of New ATf-4 be connected to the other port with another 2 foot extension, so that the fluid can be pulled fom one orifice and drained from the other .. you wouldn't have to refill from the dipstick hole? A siphon type air gun is great way to clean. ARB diff covers, Warn bumpers, Warn 9K winch, a couple Hella lights and a WORTHLESS AirRaid CAI. And, if there was any crud in the cooler, you'll be able to see it in the "bucket" that you're aiming the ATF hose in during the flush. To save me some further research, does anyone know if the first service (or any/all) for replacing the fluid on a Gen 5 CRV requires anything more than simply pulling the drain plug, draining the old fluid, cleaning off the drain plug magnet, then refilling the system to the proper level with new fluid? I'd just replace it if at all questionable. The dealer has a machine to clean it out. They're near identical prices in most cases, but every so often, you can find the B&Ms from online retailers much cheaper, and sometimes with free shipping. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. By contrast, a number of industry experts from Mobil/Exxon and others have come out in favor of adhering, whenever possible to the specific viscosity curve and friction modifier package called out by the vehicle maker. TIA for your opinions and thoughts. I've seen a trans shop run a hose from the solvent tank to the lines then back to the solvent tank. Also, where do I find these hand pumps you talk about? If she doesn't come completely clean on the 1st try then the cooler gets replaced. Another Oxford T4R member huh? You are corect in rear line is return. The letter from Valvoline discussed Mercon compatibility (given the out of spec issue), but given the staggering price of a Sienna transmission and the fact that it doesn't hold much fluid, I'm going to use Toyota WS and pay the premium. I was wondering how many here had performed a DIY trans flush and how did you do it? We'll show you a fairly easy way to do a fluid replacement in your driveway without much hassle. What I like about the magnefine filter is the level of filtration it offers along with the magnet. JavaScript is disabled. 3) Dry it with compressed air. I'll have some time off over Christmas and plan on tackling this . Most automatic transmissions hold roughly 10-14 quarts of fluid. There's no excuse to use aftermarket fluid. A digital display indicates the ATF oil flow rate in gallons per minute (GPM) along with the amount of ATF oil in the supply vessel, supply vessel ATF oil temperature, machine cycles and the operating mode. The auto lock kicked in on mine and I stood there for a second watching the lifeblood running out of my trans with no way to shut it off. Once to clean out the burnt fluid when I first bought and then to synthetic when I put on a trans cooler. Its very simpleto change the filter in the pan if you change your own engine oil you can can change the transmission filters. If your not broken, then a regular trans service is fine. And a word of caution, if you use the trans to pump the fluid, roll down a window. The problem is that you already know there is a restriction. Then I use 2 just for added insurance. crvownersclub.com is not in any way affiliated with Honda Motor Company. If the original was dark brown or black, like many i've done, watch for the color changeit will be almost a direct change form the old to new, then shut off the engine and top off. I will do this for my next change! It may not display this or other websites correctly. Cookie Policy - Contact Us - Here is the PQIA report on MaxLife. When I go to replace it, i simply pop the 5 plastic rivets, remove the grill and loosen 2 hose clamps. View unanswered posts | View active topics, Portal Board index Mechanical and Maintenance (no chat or performance) 2000-2005 (other than GXP), Users browsing this forum: No registered users and 2 guests, working on pulling the trans out of the bonne and when i disconnected the cooler lines no fluid came out. All the solvent will be pushed out of the ATF cooler by the normal ATF flow so rinsing and drying are not needed. 3rd Gen Engine and Drivetrain -> 2003-2007, 3rd Gen High Performance and Accessories (5.9L Only). Any solvent(kerosene, engine flush, biodiesel,) can be added to the cooler prior to restarting car with ATF cooler hoses reversed. He stated that they never pull the pan at any service interval. The auto lock kicked in on mine and I stood there for a second watching the lifeblood running out of my trans with no way to shut it off. Adding filter just adds to restriction of circuit, which is something you don't need. Do Not Sell My Personal Information -, By logging into your account, you agree to our. See module where connects at front cooler. Toyota is emphatic that type T-IV and WS never be interchanged. And in a rare move, an industry watchdog group called out MaxLife after testing two years ago stating that it didn't meet all the claims on the label. I have done the 12 quart flush using the transmission pump a couple times. After dropping the pan and changing the filter(s), I generally lkook up the total fill amount for the transmission and add about 1/2 that amount to the sump before starting the engine. Thanks. The next day I bought more fluid and put in over a litre more to get it up to the warm line on the dipstick. About Us - If there is any doubt at all, I replace it, don't like taking chances and doing the whole thing over again after towing the car home. FWIW most tranny shops flush once. How do you put in a clean filter? On reverse flushing, must remove one way check valve in many cooler lines. myfirstbonnie- what item number is the one you got? I've used this procedure on many different vehicles and it works well. Note that I do tranny service once a year. I can understand why toyota will not do a transmission flush and it is because by the time someone wants it done it is already showing symptoms and flushing it is not going to make it better just more liable for toyota. Pictures are on my thread What is the reasoning behind using a stand-alone pump instead of using the transmission to pump it? Getting my rebuilt trans back this week and I want to flush the lines and tranny cooler of all the old fluid/junk. Note that some transmissions will run the pump in any shifter position, but others may not pump while the transmission is in the park condition. We supply a can of this with all our units. The oem is nothing more than a strainer. When doing any tranny work I always flush out the cooler. I've also used Mobil 1 Universal ATF before and Max life has the same results for half the price. I'd squirt in brake cleaner and follow with compressed air. Basically you replace filter, add new fluid. Disconnect both trans cooler lines where they go into the tranny, hook the cooler flushing machine(cause we all have these in our garages) onto the one of the lines, and pump that crap into something you can take it to be recycled in. Users browsing this forum: No registered users and 21 guests. There is a seller now with a shipped price of $104. The J 45096 transmission oil cooling system flush and flow test tool replaces current tool J 35944-A. I bought a case of WS on ebay for 90 shipped. Terms of Service - Content on siennachat.com is generated by its users. I think you misunderstand the procedure. Total cost was about $127 for 15 litres of ATF + 4 and Fram filters/gasket. Where we're going, we don't need 'roads'. Yes, you can replace ALL the fluid in your tranny. You are using an out of date browser. Location: North Carolina or Kentucky. http://lubegard.com/automotive/trans_kooler_kleen.html, http://lifeautomotive.com/Products/ATI2001.asp, Transmission Service - Changing Fluid - Drains and Fill vs flush, Any harm in having a shop flush trans fluid in 62te. I posted two threads on Toyota Nation to outline the procedure for installing a new trans cooler and flushing the transmission on my 2008 Sienna XLE. Have a friend start the engine and you add fluid at the same rate as it comes out. Hence, it's a good idea to change the fluid at recommended regular or severe-service intervals. I'm sure I changed all the fluid. It's been a while. Archive - The fluid that came out when I dropped the pan was bright red. garage is a little fumey though, 93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited, Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers, Mechanical and Maintenance (no chat or performance), http://www.bulkpart.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=2&Product_Code=4589&Category_Code=tru-cool-hd&Product_Count=1. Sorry, should have mentioned the flush. For a few bucks more on a fluid you will keep in for a 100,000 miles, why go cheap? No solvents or other chemicals are introduced into the system, and no abnormal pressures are applied like they can be in other methods of flushing. Compared to a $4k transmission, fluid is cheap. Has anyone done this with your JK? I would suggest removing the one-way check ball/valve. Cookie Policy - I never dropped the pan but I was having no issues with it despite the condition of the fluid. If I had a second gen sienna I would try it via a drain and fill first.