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

  • Ford Probe 4 cylinder stumbles 7 answers

    My 1996 Ford Probe SE (four cylinder, manual) has forever stumbled and then surged at about 2500 rpm and then about 3000 rpm. Also, when you're coming to a stop and have to engage the clutch, it idles...

    1996 Ford Probe SE

    -

    Maintenance & Repair

  • Occasional no start. Always turns over fine. Also now idle drops too low and sometimes stalls. 21 answers

    1995 Ford Probe GT

    -

    Maintenance & Repair

  • engine surge at idle speed 2 answers

    My Triton V10 started surging at idle speed whether in park or neutral but worse in gear. Could it be the MAF sensor or an O2 sensor?

    1999 Ford F-250 Super Duty XL Crew Cab SB

    -

    Maintenance & Repair

  • iac 2 answers

    My 1993 thunderbird idles very high and does not want to shift into over drive. I have heard that it could be the idle air control valve causing both problems. If anyone could tell me if that is tru...

    1993 Ford Thunderbird LX

    -

    Maintenance & Repair

  • surge when at idle 2 answers

    help! changed airmass sensor,throtle body, heat oxegen sensor, plugs, wires. any more sugestions please am ready to blow up car.

    1993 Ford Escort 4 Dr LX Sedan

    -

    Maintenance & Repair

Probe

Looking for a Used Probe in your area?

CarGurus has 18 nationwide Probe listings and the tools to find you a great deal.

ZIP:

Search Ford Probe Questions

Ford Probe Experts

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

Related Models For Sale

Used Ford Mustang
470 Great Deals out of 45,735 listings starting at $1,999
Used Mitsubishi Eclipse
29 Great Deals out of 1,359 listings starting at $1,000
Used Ford F-150
2,194 Great Deals out of 206,316 listings starting at $1,499
Used Dodge Charger
405 Great Deals out of 28,172 listings starting at $1,988
Used Mazda MX-6
10 listings
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Chrysler PT Cruiser
14 Great Deals out of 3,153 listings starting at $995
Used Ford Ranger
196 Great Deals out of 5,805 listings starting at $1,650
Used Ford Focus
539 Great Deals out of 57,171 listings starting at $1,095
Used BMW 3 Series
972 Great Deals out of 31,729 listings starting at $1,000
Used Nissan 350Z
73 Great Deals out of 1,238 listings starting at $2,595
Used Volkswagen Beetle
166 Great Deals out of 9,557 listings starting at $1,500
Used BMW 5 Series
459 Great Deals out of 15,988 listings starting at $1,700

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.