shuddering in 2-3 upshift
- Thread starter KmK442
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transmission fluid does not gum anything, in fact it can be used to clean the lower part of the engine by adding some to the crankcase. My uneducated guess is the torque converter or the lock up
http://www.agcoauto.com/content/plugins ... icleid=203
http://www.agcoauto.com/content/plugins ... icleid=203
My guess would be either the tv cable adjustment or a loose bolt or bolts on the torque converter. When I installed the 2004r in my GP this summer I was also getting a shudder when shifting especially going uphill, and it was the tv cable adjustment was a little off which cured it. You need to have it adjusted so that it doesn't shift too soon, it's better to have it shift on the later side than sooner. It could also be the bolts on the transmission case being loose, that happened to my old Chevy S/10 after a transmission was installed it shuddered like crazy so I brought it back to the transmission shop and they found that they didn't tighten the case bolts tight enough to the block.
All oils have a burning point, and can become contaminated over time, causing residue to build up where it can decrease or increase pressures.... To suggest that transmission fluid can never leave deposits or varnish up in a passenger car transmission just makes no logical sense..... but maybe in Canada, where its never hot enough to skinny dip, its possible.... 
http://www.seafoamsales.com/why-trans-tune-works.html
http://www.seafoamsales.com/why-trans-tune-works.html
if you get your transmission oil to point of boiling your transmission is done. During normal use of a transmission the oil has cleaning agents in it and it keeps it from leaving deposits As good as the Sea Foam products are they do market them and it's obvious for some people it works . As for not building up heat in the transmission oil that will destroy a transmission and I have never heard of that being a problem in this country.
Harsh driving conditions can devastate the life of the transmission fluid, which can then lead to transmission failure. Old and dirty transmission fluid can lead to the need for an entirely new transmission. Before draining or flushing you should pull the dip stick and look at the fluid with a white paper towel. If it is dark, burnt smelling, and you see little flakes or specks in it, DO NOT FLUSH IT. This is a sign that you may need a transmission. What is happening in these cases is that the fluid is too old or got too hot and actually became burnt. Almost like catching fire, in fact probably very close to a fire inside the transmission. By letting the fluid become burnt and damaged, all of the additives become ineffective. One of the main additives is a detergent they put in the fluid. The detergent or cleaning agent is used because transmission fluid is not changed as often as engine oil. Therefore it becomes necessary to have plenty of detergents or cleaning agents in the automatic transmission fluid so the contaminants stay in suspension and don’t congregate in one area. When the fluid is burnt up and dirty, by replacing the fluid with fresh fluid full of detergent and cleaners, the debris becomes dislodged and naturally finds its way to the control mechanism called the valve body. The other thing that happens is the new fluid with detergent can loosen the glue that holds the clutch plates and band material that holds them to their backing plates.
http://www.advancedtransmissionsonline. ... 0donts.htm
Harsh driving conditions can devastate the life of the transmission fluid, which can then lead to transmission failure. Old and dirty transmission fluid can lead to the need for an entirely new transmission. Before draining or flushing you should pull the dip stick and look at the fluid with a white paper towel. If it is dark, burnt smelling, and you see little flakes or specks in it, DO NOT FLUSH IT. This is a sign that you may need a transmission. What is happening in these cases is that the fluid is too old or got too hot and actually became burnt. Almost like catching fire, in fact probably very close to a fire inside the transmission. By letting the fluid become burnt and damaged, all of the additives become ineffective. One of the main additives is a detergent they put in the fluid. The detergent or cleaning agent is used because transmission fluid is not changed as often as engine oil. Therefore it becomes necessary to have plenty of detergents or cleaning agents in the automatic transmission fluid so the contaminants stay in suspension and don’t congregate in one area. When the fluid is burnt up and dirty, by replacing the fluid with fresh fluid full of detergent and cleaners, the debris becomes dislodged and naturally finds its way to the control mechanism called the valve body. The other thing that happens is the new fluid with detergent can loosen the glue that holds the clutch plates and band material that holds them to their backing plates.
http://www.advancedtransmissionsonline. ... 0donts.htm
Based on this article, if you have an overheating problem once...you have cooked the transmission and need to rebuild it. Sounds like a transmission repair shop sales pitch .....and I aint buyin it.
it take more than once to fry the oil so it turns color unless you really abuse it. At the track with the cars that use automatics it's not uncommon to smell a transmission when it's coming off the track but they survive. Once the oil turns colour it's just about always too late and the transmission is toast. You'll notice that transmission oil has a much longer interval between oil changes because it doesn't break down and leave carbon deposits like engine oil.
to get back on topic it doesn't sound like this transmission was fried. The torque converter replaces the clutch and if the torque converter is slipping it'll reacted the same as a clutch with a problem and shudder. It's just strange that this shudder only seems to happen when shifting 2-3
to get back on topic it doesn't sound like this transmission was fried. The torque converter replaces the clutch and if the torque converter is slipping it'll reacted the same as a clutch with a problem and shudder. It's just strange that this shudder only seems to happen when shifting 2-3
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