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Discussion Starter · #1 ·
hello again..im having some problems with my auto tranny on my 1990 K1500..it seams that it is stuck in 3rd gear. what might it be, is it hard to fix and how expensive could it get??any help would be greatly apreciated.. when i try accelorating at a stop it goes nowhare and the engine is reving high..thanks everyone

mr.copenhagen
 

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hello again..im having some problems with my auto tranny on my 1990 K1500..it seams that it is stuck in 3rd gear. what might it be, is it hard to fix and how expensive could it get??any help would be greatly apreciated.. when i try accelorating at a stop it goes nowhare and the engine is reving high..thanks everyone

mr.copenhagen
I'm sure you already checked, but I need to ask. You checked your trans fluid level correct?
 

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hello again..im having some problems with my auto tranny on my 1990 K1500..it seams that it is stuck in 3rd gear. what might it be, is it hard to fix and how expensive could it get??any help would be greatly apreciated.. when i try accelorating at a stop it goes nowhare and the engine is reving high..thanks everyone

mr.copenhagen
Check underneath truck, side of tranny shifter linkage is free and moving by hand (make sure to chaulk the wheels)
 

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Discussion Starter · #7 ·
Are you saying the gear selector is stuck, or it just won't down shift any more?

well i dont get it because i can shift it into first seccond and third on the colum..but if i throw it into drive..it just starts off in third and wont gear down or nothin lol im confused haha
 

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well i dont get it because i can shift it into first seccond and third on the colum..but if i throw it into drive..it just starts off in third and wont gear down or nothin lol im confused haha
Sounds like there is a valve or something stuck in the valve body.

Smell the trany fluid and if it doesn’t smell like burnt almonds then it’s probably fine, just needs the valve body cleaned.

A great time to buy a new valve body shift kit.

If it smells burnt then you need a rebuild.
 

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It could be the vacuum modulator “don't know the correct name” it's that round thing on the right site of the tranny with a vacuum line on it. :eek:uch:
 

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Discussion Starter · #10 ·
haha alls i know is that it wont gear down and the truck now smells like **** hahaha its soo grimy i cant stand it lol im just gonna junk that tranny and get a new one
 

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Discussion Starter · #11 ·
well..brought the truck to the doctor..the tranny was blown haha..and since im a firefighter and my ol mans a cop they did it all over for 1200 bucks !!! :p
 
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