what causes a 2005 dodge ram 1500 to have a high rpm all the time especially when idle.

Asked by Sep 01, 2015 at 11:23 PM about the 2005 Dodge Ram 1500 SLT Quad Cab SB

Question type: Maintenance & Repair

My dodge 2005 dodge ram 1500 high idle issue. Ive changed the throttle
body, iac valve, and throttle position sensor and still having the same issues.
When idle the rpm is at 1.5 which is very high. Took it to the shop and it was
to i have changed everything that could be associated with it and they cant tell
me whats wrong.  HELP PLEASE.

3 Answers

2,345

it sounds like you have a leak and that there is to much air and the computer is adjusting it to match fuel to air ratio. what you can do is take a can of carb clean and spray around the throttle body and intake, spray the vaccumm lines there is a leak some where and when you notice a idle change look to see what the problem might be. this is just a test if it doesnt work there are other things that can be tried just let me know what you find with the carb test.

Ok. Thanks I will give that a try.

Ok I don't know if you have fixed you problem or not and don't know if this will work for you.. i have a 2003 2500 hemi and when I broke a valve spring it went into a limp mode and after I restart it after fixing my valve I had the same issues. It would kick up to 1500rpm and I had to reset my pedal because it's a drive by wire system. It's called a "APPS" (accelerator pedal position sensor) I don't know if that's your probleml. https://m.youtube.com/watch? v=VvRC4qpVyyM

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