1991 Jeep Wrangler "cold idle" Questions

Ad

Question about Jeep Wrangler

1 Answer

...idle when cold Its cold start issues:---- Go through the list of help links mentioned below:---- Click the link :---- Cold start problem and vehicle shudder around 2500 to 3500 rpms ...

Ad

Question about Jeep Wrangler

1 Answer

...idle. its fine when its cold and once it warms up and idle comes down it misfires/idles really rough. may be lacking power also. i have changed the plugs,wires,cap,rotor,coil,o2 sensor. it still does ...

Ad

...cold warm when ever please help the iac probably has carbon built up around it this controls the idle speed try cleaning it first,if not it could be a bad iac or a vaccum leak that the iac takes some ...

Question about Jeep Wrangler

1 Answer

cold start (winter) is about 1500 RPM. if not at fast idle fix bad fast idle (Bad IAC) when i say bad IAC that means the system IAC is bad,not just a part. the IAC /ISC controls idle at all times, via

...A faulty MAP sensor itself or a bad TPS (throttle position sensor). It's not uncommon for a bad TPS to idle when the motor is cold but once warm, not idle fast enough to keep the vehicle

...When the engine is hot or cold it will still idle around 2000 rpms Could be as simple as lubrication of the throttle linkage, (easiest and cheapest)Could be fuel pressure regulator putting out too ...

...idle is from faulty injectors or maf/vaf sensors or vacuum leaks run the fault codes to determine the fault area rough means misfire, there are in fact over 50 causes. hard cold fact. 1: new spark ...

Question about Jeep Wrangler

1 Answer

...idle terrible for about a minute before smoothing out again without any more problem? This happens every time i crank it, warm or cold. check to see if you have any codes come auto zone can do this ...

Question about Jeep Wrangler

1 Answer

cold weather only. Sounds more like a high speed whirring than a squeal but it is loud. It happens at idle or in gear. It gets louder in 1st, 2nd, or 3rd gear especially above 2000 rpm. In 4th gear at

...cold. Also my temp. control on my heater will not turn the heat all the way off. I have warm air blowing when set on vent and temp control turned all the way down. Could I be having a vacuum problem? ...

Not finding what you are looking for?
1991 Jeep Wrangler Logo

481 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top Jeep Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

john h

Level 3 Expert

29494 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...