Info needed: Is there a repair such as cleaning or adjusting for the throttle position sensor or should it just be replaced. The tranny is downshifting on its own under throttle. It's a 1996 3500 Automatic. Thanks, Dutch

 

Look in my photo gallery on here,, there is a diagram on using a pontemeter to basically fix the TPS you have now. Did this mod to my truck over 2 years ago and working perfect to this day

 

Cleaning the TPS is a waste of time for short term results, just buy a new one or use the pot method.

 

I have a potentiometer on mine and love it

 

Thanks for the diagram, I will do the same. Also, would you know if installing bigger/taller tires would impact the hunting of gears? What is the best way to reprogram for the taller tires?

 

The best way is to re-gear the axles so that it is running like stock.

 

Went through this and tried to clean mine. Did change it and made it better, but shortly after it went back to doing the same thing. I bought a replacement Bosch part from Advance and replaced it with no problems since.

 

hi
well i had mine go badd and got one from napa , but !!!

one from napa only lasted 6 mo .

sooo i drilled my old original one and used non cloranated brake cleaner ,washed it out till clear cleaner came out , lew it out with 40 lb compressed air , resealed it with thin layer of sylicone and reinstalled it !

been working perfect for 1.5 years now !