TPS Problems- try this

[jeepcjsrule]

On my dodge whenever i would get around 60-70 mph the rpm's would surge up and down like mad. I was just about ready to take it to the local cummins shop when i talked with my grandpa he said i should try to spray it down really good with wd-40 so i did i figured it couldent hurt anything i used almost half the can i sprayed the throttle cable as well. I have been driving it now for two days probably close to 120 miles mostl of it at 60-80 mph with no problems the truck runs so smooth know it's un belivable.



So if you are having problems with your TPs try this before you take it to a shop.

 

[mfburns]

Thanks for the post.

I had the same problem last year. I did about the same thing. I used electric contact cleaner and silicone spray. No problems since. Each oil change I try to remember to do the same thing. Working so far.



HAPPY NEW YEAR ALL

 

[Breck]

I have 217K on the original TPS, doing the same thing you have discovered!

 

[**ICEMAN**]

Originally posted by jeepcjsrule

On my dodge whenever i would get around 60-70 mph the rpm's would surge up and down like mad.

does the surge only come around each year when cold weather sets in?? no problems during summer etc. ? cover your transmission cooler with card board etc. or run fanless in the winter will stop the surging also.

 

[jeepcjsrule]

it would surge in the summer time to but since i sprayed it down with wd-40 it has been running better than ever.

 

[illflem]

I'd stay away from the silicone spray on the TPS, you might insulate the conductors. I had a time once when welding some steel that had the spray on it, couldn't get a good ground. Some forms of silicone conduct electricity, but not the spray.

 

[NETim]

WD?

I would think that good ol' WD-40 would attract dust and other contaminants in this application. Wouldn't plain old contact cleaner, the kind that's safe around plastics, be a better choice?

I have no doubt that WD will clean it up and make it work, but still I'd be concerned about WD's tendency to "gum up" with dirt over the long haul. I 'spose if a guy hosed it down on a regular basis, they'd make out alright.



Happy New Year!



Tim