why is my idle surging? i think its the iac

25

Asked by Dec 26, 2009 at 08:52 PM about the Ford Probe

Question type: Maintenance & Repair

my idle is surging after the car warms all the way up. it surges from 1000 to 1500 and its really annoying. i think the idle air control valve needs cleaned or i need an o2 sensor! IDK ANYTHING about these cars ive never had an import or a v6 that i've worked on and im really confused! please help
also if this has anything to do with it, if i stay at a speed say 45 for a couple minutes the check engine light turns on and stays on until i turn the car off. then it goes away until i stay the same speed again next time im driving.

4 Answers

45

depending on the year you could scan it with an obdii scanner. its most likely not your o2 sensor. if you think its your IAC then clean it! also check out your distributor, wires, and plugs. Some people have reported ripped wires causing idle issues. also make sure your TB is clean. More info at www.performanceprobe.com

1 of 1 people found this helpful.
105

i had an 89 with the idle problem. i changed the map sensor and it was fine.

1 of 1 people found this helpful.
35

My 95 GT had the same problem. Change your Mass Air-Flow Sensor (Make sure you use a BRAND NEW one). I used one from a junkyard and it made the problem worse. Since I put the new one in, I haven't had any problems at all.

45

hey im sure i had this same problem. there is a lil senser on the left of the airbox with two vacuum hoses going to it with a plug. replaced it and its fine after i spent over $1200 to fix it and it was lil thing like that.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • why is my idle surging? i think its the iac 4 answers

    my idle is surging after the car warms all the way up. it surges from 1000 to 1500 and its really annoying. i think the idle air control valve needs cleaned or i need an o2 sensor! IDK ANYTHING about ...

    Ford Probe

    -

    Maintenance & Repair

  • whats wrong with my car 5 answers

    everytime i start my car i have a squelling noise followed by knocking and the pulley above my crankshaft pulley is wobbling and rubbing the motor in one spot thats the squeeling part but i dont know ...

    1996 Ford Probe SE

    -

    Maintenance & Repair

  • I replaced the distributor in my 95 Probe GT 2.5l v6 and no matter how I rotate the distributor, the car runs the same. I have jumped the GND and 10 connector. 4 answers

    Trying to adjust the timing after replacing the distributor. The car idles okay, not great, OBDII code says random misfire and 27 degree spark. It should be 9-10. I jump the GND and 10 pins in the d...

    1995 Ford Probe GT

    -

    Maintenance & Repair

  • where is the head light re lay located 1 answer

    Where is the headlight relay located on 1991 ford prob head lights retract up and down but no lights come on

    1991 Ford Probe GL

    -

    Maintenance & Repair

  • why want my ford probe start? 3 answers

    probe ran great pulled in the driveway shut it off, went out the next morning to go to work and the car want start. I have checked pip,coil timing new belt installed a month ago, I have checked the fu...

    1991 Ford Probe

    -

    Maintenance & Repair

Probe

Looking for a Used Probe in your area?

CarGurus has 14 nationwide Probe listings and the tools to find you a great deal.

ZIP:

Search Ford Probe Questions

Ford Probe Experts

#1 Patricia Moore
Patricia Moore
Reputation 130
#2 Tom Demyan
Tom Demyan
Reputation 120
#3 lindspa
lindspa
Reputation 90
View All

Related Models For Sale

Used Ford Mustang
700 Great Deals out of 44,788 listings starting at $1,500
Used Chevrolet Corvette
220 Great Deals out of 22,191 listings starting at $3,850
Used Ford Ranger
174 Great Deals out of 5,597 listings starting at $900
Used Ford Focus
811 Great Deals out of 54,868 listings starting at $1,200
Used Chevrolet Camaro
355 Great Deals out of 31,416 listings starting at $2,400
Used Toyota MR2
17 listings
Used Volkswagen Jetta
593 Great Deals out of 44,493 listings starting at $800
Used Mazda MX-5 Miata
77 Great Deals out of 3,966 listings starting at $1,900
Used Ford Bronco
197 listings
Used Mitsubishi Eclipse
28 Great Deals out of 1,320 listings starting at $1,990
Used Toyota Celica
329 listings starting at $1,300
Used Ford Escort
318 listings
Used Honda Accord
1,053 Great Deals out of 68,303 listings starting at $1,000
Used Ford Taurus
262 Great Deals out of 18,975 listings starting at $1,499
Used Mazda MX-6
8 listings

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.