2001 Chevrolet Silverado 2500HD "allison transmission shifting" Questions

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Question about Chevrolet Silverado 2500HD

2 Answers

allison transmission with 200K miles will not shift when temp drops below 45F unless I let it warm up for 10 min. Otherwise it shifts extremely well. I dont want to replace entire transmision, just ...

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Question about Chevrolet Silverado 2500HD

1 Answer

allison transmission wouldn't shift down after I got off of interstate. after truck cooled off it started shifting again. temp was fine when trouble started. can the transfer case pump rub issue cause

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Question about Chevrolet Silverado 2500HD

1 Answer

...allison transmission. The check engine light is on. I think that the rod that connect to the transmission needs some adjustment if it is stuck on 2, then you need to loosen the screw and adjust the ...

Question about Chevrolet Silverado 2500HD

1 Answer

...Allison transmissions are fairly reliable. don't really burn up unless you run them dry to many times. First you need to have the codes read. Even some engine codes will make transmission not run ...

Question about Chevrolet Silverado 2500HD

1 Answer

...Allison. The shifting is not working properly. Sometimes you don't have D gear, you may only have 1 2 3 and R. Sometimes none work. Sometimes when you shift from R to D there is a loud bang noise. ...

Question about Chevrolet Silverado 2500HD

2 Answers

...should be lower; if it isn't your pump is bad. We really need more information than this if you want us to accurately troubleshoot for you though. Do you have the allison transmission or the

...Allison transmission that won't go when you first start it you have to let it warm up 10-15 mins then it will go and then it will shift fine. Any ideas of what could be wrong? Did you at any time ...

Question about Chevrolet Silverado 2500HD

3 Answers

...Allison (transmission manufacturer) the solenoid E is stuck open. Take the truck to a reputable transmission workshop or a GM dealership. when coming to a stop down shifting from second to first ...

...Allison Transmission on a 2001 Chrevrolet Silverado 8.1 Liter engine After starting my 2001 Chevrolet Silverado 2500 HD with Allison transmission 8.1 liter engine, I get a clanking noise that goes ...

Question about Chevrolet Silverado 2500HD

2 Answers

...allison transmission, which based on the problem you are reporting I would guess that you do. It sounds like your vehicle is stuck in limp mode. This is probably due to a bad NSBU switch(Neutral, ...

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