I have a 2000 tundra v8 the transmission started slipping a couple months ago and after reading alot of posts on here about how junk those transmissions are i feared the worst so i drained and refilled the pan cleaned the filter out, wich had a bunch of gunk in it (looked like gasket material) and put a new gasket on. then i drained 12 quarts and refilled it seemed to be fine after i drove it for two days then it started again. when its slipping bad i can smell the atf burning and it seems like the trans is making alot of ticking or something it mostly only does it after i stop and try to take off again and 4 wheel drive doesnt seem to wanna engage either. does anybody have any more insight on this issue because ive owned this truck for a year and a half and is definitely one of the worst vehicles ive ever owned i had to do front brakes/calipers power steering lines, brake lines, frame and now this i cant afford anymore on this truck and if i really do need a trans its gonna set me back awhile even if i do it myself (around 1000$) i dont know what else to try, thanks.

Sounds like the previous owner did not believe in preventitive maintenance. Maybe you should reassess who/what you are calling a piece of crap.

did you run auto rx through the tranny before your drain and fill?

have you try Lucas Trans Fix, it may be help. I use it on my mine & it shift better & smoother, you can get it from almost any Auto Part. The cost around $12. Oh, one more thing is making sure your ATF level it exactly right, from my experience even 2 oz more or less it make a big different in MPG, ATF Heat built up. hopefully this help.

have you try Lucas Trans Fix, it may be help. I use it on my mine & it shift better & smoother, you can get it from almost any Auto Part. The cost around $12. Oh, one more thing is making sure your ATF level it exactly right, from my experience even 2 oz more or less it make a big different inMPG, ATF Heat built up. hopefully this help.


I didnt try the auto rx but i heard about it it seems if i let it sit for a day two it drives fine for a day or two. Would i need to do a flush again to use the auto rx? Could it be something wrong with the cooler? I have the towing package but i havent had any leaks.

might as well try it like the directions suggest. it will be your last resort before a new Tx.....

Have you checked the fluid level? Might as well start at the basics. If it's down a little it will start slipping. What do you mean by gasket material? Unless the 2000 is different than my 2002, the pan doesn't have a traditional gasket, it's RTV sealant. I dropped my pan and cleaned it out six years ago and had to "break" the seal to get it off. I remember after a day or two I had the slipping. Come to find out I hadn't put the washer back on the drain plug and was losing a little fluid, most likely while driving. It wasn't showing up as a puddle under the truck. If you didn't seal the pan properly maybe you're losing fluid through the gasket.

I agree with doing the Auto RX if you find everything else to be normal. Check out their website for instructions on how to use the product. It should answer any questions.

By the way, how many miles are on the truck? I don't think it's necessarily a fair assertion to call it a piece of junk after you bought it at ten years old. It could've been turned into a piece of junk because the previous owner didn't do anything to it. Either way, good luck. I hope it turns out to be an easy fix.

John

Have you checked the fluid level? Might as well start at the basics. If it's down a little it will start slipping. What do you mean by gasket material? Unless the 2000 is different than my 2002, the pan doesn't have a traditional gasket, it's RTV sealant. I dropped my pan and cleaned it out six years ago and had to "break" the seal to get it off. I remember after a day or two I had the slipping. Come to find out I hadn't put the washer back on the drain plug and was losing a little fluid, most likely while driving. It wasn't showing up as a puddle under the truck. If you didn't seal the pan properly maybe you're losing fluid through the gasket.

I agree with doing the Auto RX if you find everything else to be normal. Check out their website for instructions on how to use the product. It should answer any questions.

By the way, how many miles are on the truck? I don't think it's necessarily a fair assertion to call it a piece of junk after you bought it at ten years old. It could've been turned into a piece of junk because the previous owner didn't do anything to it. Either way, good luck. I hope it turns out to be an easy fix.

John


well the truck has 152xxx mi. when i dropped the pan it pretty much just fell right off. the filter was so clogged with stuff i couldnt even get water to run through it so i kept running water into it and shaking it out and brown gunk kept falling out of it until it started to run right through and i bought a new filter online but it was the wrong one but it came with a gasket that fit so i just put that one on. the pan did have a bit of sludge on the bottom so maybe it leaked a bit at one time? it hasnt leaked at all since. the level might have been a bit low before but its good now. the atf that i drained out before was really dark and didnt seem to get much brighter even at the end of the flush. should i flush more? i used one of the methods i read on this website by draining two quarts at a time then filling it but i couldnt get any fluid to come out of the return line from the aux cooler to the trans like it said, i just used the send line to the radiator cooler to drain it. i read somewhere that the towing package had a sensor that you needed to disable to drain the fluid or something? but i think that was a 2nd gen and i guess im just more mad about the truck because i feel ripped off by the place i bought it from because all the money i put in i definitely wont make back.i really did like the truck when i first bought it but oh well as soon as i get this figured out its gone! lol

Did you ever think about how a truck that is 12 years old may need some work done to it? Or how the previous owner possibly could have not taken proper care of it? Just the fact that at 152,000 miles this truck is already experiencing transmission issues is a huge hint that the previous owner was an idiot and didn't do any preventative maintenance. In that case, you had better make sure the timing belt was done at around 90k miles before it breaks on you, blowing your engine, and giving you another excuse to come on the forum and complain about something that could have been prevented.

By the way, what are you planning on replacing it with?

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I would do another flush, this time making sure you have enough ATF on hand so that at some point you start getting somewhat clean ATF coming out. I would also incorporate the Auto RX into the mix. I've never used it but there are reputable members on this forum who swear by it, so I can recommend it.

John

In one of your earlier posts you said "i used one of the methods i read on this website by draining two quarts at a time then filling it but i couldnt get any fluid to come out of the return line from the aux cooler to the trans like it said, i just used the send line to the radiator cooler to drain it."
Did you have the engine running when you did not get any ATF to flow out of the aux trans cooler? If so, then you have a blockage and the ATF will not be cooled and thus run higher than normal temperature. Also your description of cleaning the trans filter gives the impression that due to the one purchased on the web being incorrect you reused the original one that was initially totally plugged?

In one of your earlier posts you said "i used one of the methods i read on this website by draining two quarts at a time then filling it but i couldnt get any fluid to come out of the return line from the aux cooler to the trans like it said, i just used the send line to the radiator cooler to drain it."
Did you have the engine running when you did not get any ATF to flow out of the aux trans cooler? If so, then you have a blockage and the ATF will not be cooled and thus run higher than normal temperature. Also your description of cleaning the trans filter gives the impression that due to the one purchased on the web being incorrect you reused the original one that was initially totally plugged?

Yea i had it running when i did the flush and from what i read the atf was supposed to come out pretty fast out of the return
Line instead it barely trickled for a second then stopped. A blockage could make sense because its pretty intermitent and when it starts to slip i can smell it burn . Would a power flush fix that or maybe the auto rx stuff? I thought about taking it somewhere to do a power flush but then i also heard that can create even more problems. I did reuse the filter caus it has the screen and it seemed like i got it all cleaned out after everything i did i think it did drive better overall but slightly i guess and that just couldve been because the atf was old

You have to figure out where the blockage is. This might not be a home DIY.

Didn't pick up on the blockage. I don't think you should do anything else until you find the blockage and fix that part of the problem or have a mechanic do it. Flushing and filling and doing an Auto RX treatment may result in you wasting money on something that still won't work and doing damage to the tranny, if it hasn't already happened. I would say find the source of the blockage and fix it or get it fixed, then do an Auto RX treatment with new fluid.

John

Once you complete what kerryman71 said and get the trans functioning again, then I'd recommend you install an in-line Magnefine transmission filter into the ATF line after the aux cooler going back to the trans. There are numerous threads with pictures already on here describing this simple filter installation.

Once you complete what kerryman71 said and get the trans functioning again, then I'd recommend you install an in-line Magnefine transmission filter into the ATF line after the aux cooler going back to the trans. There are numerous threads with pictures already on here describing this simple filter installation.

+2. Here is a pic of a typical install location:

http://www.tundrasolutions.com/gallery/files/1/1/8/4/5/6/magnefine_filter.jpg

Yea i had it running when i did the flush and from what i read the atf was supposed to come out pretty fast out of the return line instead it barely trickled for a second then stopped...

Just to make sure we're not missing the obvious, which hose did you disconnect from the cooler, the top nipple or the bottom one?

+3 on the Magnefine. I was going to mention it but I figured I'd wait and see what ends up happening with the tranny.

John

Just to make sure we're not missing the obvious, which hose did you disconnect from the cooler, the top nipple or the bottom one?

I tried both nothing came out of either except a few drips. If its a blockage is the only way to clear it a power flush? That inline filter sounds like a good idea once i figure out whats going on.

If I were you I'd pull both the radiator and the aux trans cooler, take them to a radiator shop & have them put through an acid wash. After that I'd have both pressure & flow tested, then think about a power flush on the trans. A power flush WILL NOT resolve a blockage in the trans cooler within the radiator or the aux trans cooler, it's only designed to force the old ATF out and replace it with new ATF, not resolve blockages created by crud buildup.

I tried both nothing came out of either except a few drips. If its a blockage is the only way to clear it a power flush? That inline filter sounds like a good idea once i figure out whats going on.

That eliminates the auxiliary cooler as the culprit.

Next, I'd disconnect from the radiator cooler section and see if you have flow there. If the input doesn't have flow, you're back in the pump and/or valve body and this became a much more complicated repair.

That eliminates the auxiliary cooler as the culprit.

Next, I'd disconnect from the radiator cooler section and see if you have flow there. If the input doesn't have flow, you're back in the pump and/or valve body and this became a much more complicated repair.

That was the only way i could get fluid out was from the input line to the radiator. So if i disconnect the send line from the radiator cooler to the aux cooler should fluid come out? Because i tried that and got nothing. So if its flowing to the radiator but not the aux cooler maybe thats the issue causing it to get to hot?. When i first bought the truck the radiator went right before i was gonna pick it up so the guy put a new one in, maybe he did something wrong? I dont know what would cause that but that was also a year and a half ago i dont know if the slipping wouldbe started a long time ago

Out of complete curiosity.....but have you looked at your coolant at all lately? You mentioned that there was gasket like material stuck in the screen of the pickup in the transmission pan. What are the chances you've got the problem with the bad radiators found in the 2000's? Could explain loss of fluid and slipping. Outside of that, I'm completely with Remmy, crawl under the truck and remove the line closer to the drivers side of the truck that feeds into the transmission cooler in the radiator. I recently had to remedy the pink milkshake disaster in my truck and once I got a new radiator in and cleaned out the aux cooler I didn not want to run the slurry back thru those systems. I flushed the fluid directly out of the transmission from that line into a bucket. I would suggest picking up a length of line just to be able to extend it down into a bucket to avoid making a mess.

That was the only way i could get fluid out was from the input line to the radiator. So if i disconnect the send line from the radiator cooler to the aux cooler should fluid come out? Because i tried that and got nothing. So if its flowing to the radiator but not the aux cooler maybe thats the issue causing it to get to hot?. When i first bought the truck the radiator went right before i was gonna pick it up so the guy put a new one in, maybe he did something wrong? I dont know what would cause that but that was also a year and a half ago i dont know if the slipping wouldbe started a long time ago

OK. Sounds to me, based on your description, that the radiator ATF cooler is the occluded section. Pick up a replacement Denso radiator - $185: Denso automotive parts available online at DensoProducts.com (http://www.densoproducts.com/resultsSearch.asp?s=9&txtPartNumber=221-0517)

Based on the amount of sludge the OP found in the trans pan I'd say the aux trans cooler should be pulled and acid washed at a radiator shop, then flow & pressure tested. The same gunk that plugged up the trans cooler in the radiator was also flowing through the aux cooler.

Based on the amount of sludge the OP found in the trans pan I'd say the aux trans cooler should be pulled and acid washed at a radiator shop, then flow & pressure tested. The same gunk that plugged up the trans cooler in the radiator was also flowing through the aux cooler.


so sorry it took so long to update had a long day at work lol so i pulled the radiator and aux trans cooler, and found a radiator shop like 25 miles from here i called and they said they would do both for about 120$ so im bringing them there tomorrow. hopefully this is finally the solution thanks for all the help everyone and ill let you know how it goes

I hope you get it all resolved. Getting the ATF flow back to normal is certainly a first step, but you still need to do a thorough ATF flush after you get it all back together. Don't forget to also add that Magnefine in-line trans filter AFTER the aux trans cooler. I have one on my trans ATF and a 2nd one on my power steering fluid (also ATF) and change both about 2 times a year (cheap preventive measure).

so it took forever to get my radiator and trans cooler back from getting cleaned out i reinstalled everything and it still has the same exact problem it was almost worse sometimes. from park to reverse or drive it really hesitates sometime before moving at all (sometimes its fine) then while driving it will randomly slip for a second then be fine again i tried getting on it it got to like 4000rpm in second then wouldnt really go much higher and started vibrating hard. im gonna try flushing more and some lucas trans fix but i really dont know what else to try.

At this point, you need to get it into a transmission shop so the pros can get eyeballs on it.