when i start my 1999 jeep cherokee sport it idles down low and sometimes quits so i have to hold the gas down for a few seconds and it will idle fine i installed a new idle control valve and still the

15

Asked by Nov 11, 2014 at 05:14 AM about the 1999 Jeep Cherokee 4 Dr Sport 4WD

Question type: Maintenance & Repair

2 Answers

104,355

On some of these Jeeps the ECM has to relearn the idle speed after you have replaced an idle component, make sure you throttle body is clean, then disconnect the battery, turn on your headlight switch, wait at least 30 seconds, turn off the switch, reconnect the battery, the ECM has now been reset to factory specs, set park brake and block wheels for safety, foot on brakes, start engine, if an automatic put in drive, if a stick put in neutral, turn on all accessories, ie heater fan headlight radio etc, let engine idle stablise, it can take a minute or two. If an automatic put in park and remove wheel blocks, if a stick make sure park brake is set and remove blocks, then drive as you normally do, this relearning the ECM on your driving style, this usually takes about 20 minutes of driving to complete. It should also pickup on any other faults in your system and turn on the check engine light if any are found. HTH

15

thanks Mark

1 of 1 people found this helpful.

Your Answer

Jeep Cherokee Experts

  • #1
    swtcat13
    Reputation
    1,690
  • #2
    Daniel Guillen-Pizzorni
    Reputation
    1,660
  • #3
    Luis660399
    Reputation
    1,430
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,052 Great Deals out of 84,380 listings starting at $1,200
Used Jeep Wrangler
457 Great Deals out of 20,134 listings starting at $3,000
Used Toyota 4Runner
359 Great Deals out of 27,326 listings starting at $1,750
Used Ford Explorer
1,179 Great Deals out of 76,958 listings starting at $2,100
Used Toyota RAV4
827 Great Deals out of 56,076 listings starting at $1,600
Used Honda CR-V
800 Great Deals out of 66,813 listings starting at $999
Used Ford F-150
3,190 Great Deals out of 239,353 listings starting at $1,300

Used Cars For Sale

2018 Jeep Cherokee For Sale
49,052 listings starting at $17,000
2017 Jeep Cherokee For Sale
57 Great Deals out of 8,036 listings starting at $15,900
2016 Jeep Cherokee For Sale
96 Great Deals out of 3,653 listings starting at $11,400
2015 Jeep Cherokee For Sale
142 Great Deals out of 4,478 listings starting at $10,889
2014 Jeep Cherokee For Sale
145 Great Deals out of 3,625 listings starting at $10,000

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.