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

5

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

Question type: Maintenance & Repair

2 Answers

92,535

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

5

thanks Mark

Your Answer

Add photo

Related Questions

Search Jeep Cherokee Questions

Jeep Cherokee Experts

#1 swtcat13
swtcat13
Reputation 1,370
#1 Daniel Guillen-Pizzorni
Daniel Guillen-Pizzorni
Reputation 1,370
#3 Luis660399
Luis660399
Reputation 1,180
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,023 Great Deals out of 74,109 listings starting at $800
Used Jeep Wrangler
277 Great Deals out of 18,077 listings starting at $2,950
Used Toyota 4Runner
236 Great Deals out of 20,491 listings starting at $1,800
Used Ford Explorer
929 Great Deals out of 72,328 listings starting at $1,499
Used Ford F-150
2,222 Great Deals out of 205,382 listings starting at $1,499
Used Honda CR-V
902 Great Deals out of 61,752 listings starting at $988
Used Toyota Tacoma
519 Great Deals out of 40,496 listings starting at $2,495
Used Toyota RAV4
721 Great Deals out of 71,526 listings starting at $1,895

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.