car is revving up when started

25

Asked by Apr 28, 2008 at 08:49 PM about the 1997 Dodge Neon 2 Dr Sport Coupe

Question type: Maintenance & Repair

when we start the car it wants to stay at 3 grand. we just replaced the head because it went bad. it was sitting over a year before we put a head on it. we replaced the tps sensor but didnt fix it. so whats the problem(computer)!

6 Answers

85

there are 3 things that i can think of that would cause a high idle that are easy to spot... the first being a vacuum leak when you start the car listen under the hood for a hissing noise if their is no hissing then it's prolly not that. the second check the throttle body for obstructions make sure the butterfly valve is closing all the way if not try to adjust the idle screw. the third check around the intake manifold and make sure it's in good condition

8 of 8 people found this helpful.
155

check for vacuum leaks at the intake manifold. Did you change the manifold gaskets when you replaced the head? Dont ever touch the idle screw youll fuck up the throttle body. My 96 neon had the same problem and it was the intake gasket.

1 of 1 people found this helpful.
220

(NEVER MESS WITH THE FACTORY CALIBRATED IDLE SCREW) iT IS AN IMPOSSIBLLY HARD TO FIND REPLACEMENT THROTTLE BODY try your idle control stepper motor you will see it on the side of the throttle body get new gaskets when replacing

1 of 1 people found this helpful.
220

when replacing(I.A.C.) it will rev up when started with new idle air control stepper motor this will be when it recalibrates for the new part

2 of 2 people found this helpful.
40

how long does it take to reclibrate--we replaced our IAC and it is still idling fast

4 of 4 people found this helpful.
30

I have a 02 dodge neon what makes my throttle body clasp.

3 of 3 people found this helpful.

Your Answer

Neon

Looking for a Used Neon in your area?

CarGurus has 605 nationwide Neon listings starting at $2,995.

ZIP:

Dodge Neon Experts

  • #1
    Justin Gilmore
    Reputation
    1,390
  • #2
    Matt Thibault
    Reputation
    970
  • #3
    Scott Goodyear
    Reputation
    850
View All

Related Models For Sale

Used Honda Civic
822 Great Deals out of 72,380 listings starting at $1,000
Used Ford Focus
731 Great Deals out of 52,713 listings starting at $999
Used Ford Mustang
685 Great Deals out of 38,285 listings starting at $895
Used Honda Accord
1,062 Great Deals out of 60,939 listings starting at $999
Used Dodge Avenger
140 Great Deals out of 4,484 listings starting at $1,500
Used Chevrolet Camaro
402 Great Deals out of 30,566 listings starting at $3,550
Used Mitsubishi Lancer Evolution
19 Great Deals out of 567 listings starting at $14,000
Used Toyota Camry
1,052 Great Deals out of 70,219 listings starting at $295

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.