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05 Silverado Trans Problems

Cheezum460

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Cheezum460 New Member

Cheezum460

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Looking for any help suggestions on my 2005 Silverado 5.3L truck. Here's whats has happened.... yesterday drove about 10 miles to store with no known issues, when I left to return home merged on hwy and accelerated to 55-60 mph then all of a sudden it tached out to about 4500-5000rpms and wasnt accelerating slowed down to 40 mph felt it jump as it engaged again then when tried to accel again the same thing. I pulled over checked trans fluid it was good. I manually put in 1st got up to 15-20mph i shifted into 2nd got to about 35-40mph tried 3rd and it tached out again, I slowed down to 35mph and was able to accelerate to about 40-45 then tached out again. Was hoping someone could give me some insight on what is wrong. I haven't had any problems with the trans in the past. I have 93000 miles on this truck. So thanks for any feedback in advance.

dlewis1111 Senior Enthusiast

dlewis1111

Posted
Posted
Looking for any help suggestions on my 2005 Silverado 5.3L truck. Here's whats has happened.... yesterday drove about 10 miles to store with no known issues, when I left to return home merged on hwy and accelerated to 55-60 mph then all of a sudden it tached out to about 4500-5000rpms and wasnt accelerating slowed down to 40 mph felt it jump as it engaged again then when tried to accel again the same thing. I pulled over checked trans fluid it was good. I manually put in 1st got up to 15-20mph i shifted into 2nd got to about 35-40mph tried 3rd and it tached out again, I slowed down to 35mph and was able to accelerate to about 40-45 then tached out again. Was hoping someone could give me some insight on what is wrong. I haven't had any problems with the trans in the past. I have 93000 miles on this truck. So thanks for any feedback in advance.

 

Your 3/4 clutch pack is most likely worn out. OR you have a bad solenoid. Have the tranny checked for trouble codes to help the diagnosis. Has the fluid and filter ever been changed?

ujtruck Enthusiast

ujtruck

Posted
Posted

Did you flush your transmission recently? :flag:

 

Transmission does not shift automatically, only manually. Swap in a known-good PCM, check wiring, check other sensors such as VSS and TPS.

 

read more ... http://www.gmtruckhq.com/?q=node/93

Cheezum460 New Member

Cheezum460

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No to the filter/fluid change. I'll assume I should just take it to a trans shop to diagnose b/c it sounds a lil above my level. Thanks for the response and info!!!

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