car is revving up when started

vanceracer
25

Asked by vanceracer 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)!

4 Answers

Michael Martinez
15

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

1 out of 1 people think this is helpful.
Derrick Tatro
85

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.

dodgeme
90

(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

dodgeme
90

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

Your Answer

Add photo

Related Questions

  • 2000 Dodge Neon, replaced two hoses that were leaking transmission fluid. When started car AFTER replacing.. car is revving LOUD and backfiring.. PLEASE HELP? 3 answers

    2000 Doge Neon. Replaced two hoses that rubbed together and formed holes. It was leaking transmission fluid. when hoses replaced, started car and it is now revving sooo loud and backfiring.. .HELP??...

    2000 Dodge Neon

    -

    Maintenance & Repair

  • 03 Neon - driving slow/sputtering after starting ignition then revs up VERY fast 4 answers

    2003 Dodge Neon SE - Automatic My car has been having this issue for 7mo. I have taken it to two mechanics who still can not figure out the source of the problem. The car drives normally about 70% o...

    2003 Dodge Neon 4 Dr SE Sedan

    -

    Maintenance & Repair

  • Car won't start... 2 answers

    Started my car last night, drove a couple blocks then it died at a stop. Will crank won't start up. Was told to change ignition coil so I did but still no luck. Any advice?

    2005 Dodge Neon 4 Dr SXT Sedan

    -

    Maintenance & Repair

  • Car won't start 1 answer

    We have put a new battery in the car a couple months back but i got into the car yesterday and didn't won't to start but after turning the key on and off 5 or 6 times it finally turned over and star...

    2001 Dodge Neon

    -

    Maintenance & Repair

  • My dodge nitro won't rev over 2000 rpm 1 answer

    2007 dodge nitro ( have had less then one month!!!) I need help the car will not rev of 2000 rpm in park or drive starts fine and runs fine other then will not go over 2000 rpm? any help would be nice

    2007 Dodge Nitro SLT 4X4

    -

    Maintenance & Repair

Neon
Looking for a Used Neon in your area?
CarGurus has 1,460 nationwide Neon listings starting at $1,650.
ZIP:

Search Dodge Neon Questions

Dodge Neon Experts

#1 Justin Gilmore
Justin Gilmore
Reputation 610
#2 Scott Goodyear
Scott Goodyear
Reputation 450
#2 Matt Thibault
Matt Thibault
Reputation 450
View All

Related Models For Sale

Used Honda Civic"
922 Great Deals out of 49,340 listings starting at $1,600
Used Ford Focus"
1,768 Great Deals out of 57,254 listings starting at $1,450
Used Honda Accord"
1,444 Great Deals out of 66,644 listings starting at $995
Used Ford Mustang"
1,072 Great Deals out of 23,465 listings starting at $950
Used Volkswagen Beetle"
359 Great Deals out of 10,790 listings starting at $1,495
Used Dodge Stratus"
45 Great Deals out of 1,666 listings starting at $900
Used Chevrolet Cavalier"
19 Great Deals out of 2,144 listings starting at $991
Used Nissan Altima"
1,995 Great Deals out of 73,042 listings starting at $1,000
Used Chevrolet Impala"
1,756 Great Deals out of 55,005 listings starting at $999
Used Toyota Corolla"
1,422 Great Deals out of 47,416 listings starting at $1,488
Used Nissan Sentra"
710 Great Deals out of 29,501 listings starting at $995

Used Cars For Sale

2005 Dodge Neon For Sale
20 Great Deals out of 497 listings starting at $1,800
2004 Dodge Neon For Sale
11 Great Deals out of 293 listings starting at $1,995
2003 Dodge Neon For Sale
248 listings starting at $2,500
2002 Dodge Neon For Sale
156 listings starting at $2,995