Jeep Wrangler Forum banner

idle

  1. Stumbling at Idle | 1990 Jeep YJ Carbureted

    YJ Tech Forum
    I did the HEI conversion to my jeep a couple weeks ago and while it runs good, the idle is off a little. I think it might be something to do with timing, but I am not used to working on carbureted vehicles so I am not the best at it. So here is what I have attempted, and it has made it better...
  2. Chasing an erratic idle, P0505...

    TJ Tech Forum
    Good evening WF, I wanted to throw out my situation with an idle issue and associated P0505 code (IAC valve and/or circuitry). I've been chasing this issue for 6 weeks now, largely with the help of this forum and the gurus (Jerry - :worthy:). At this point I'm near to calling the PCM...
  3. 2012 Jeep Idle Issues - Please Help

    JK Tech Forum
    My 2012 Jeep Wrangler Unlimited Rubicon will stall out at idle at random. When started the RPMs will be at 900 and then stay at 600-650 RPMs consistently. When the jeep stalls, you can feel a sputter and then the jeep dies. It has never stalled when the RPMs are above 1000... When I am driving I...
  4. Random Stalling At Idle - Need Help!

    JK General Discussion Forum
    My 2012 Jeep Wrangler Unlimited Rubicon will stall out at idle at random. When started the RPMs will be at 900 and then stay at 600-650 RPMs consistently. When the jeep stalls, you can feel a sputter and then the jeep dies. It has never stalled when the RPMs are above 1000... When I am...
  5. 98 RHD Rev Issues

    TJ Tech Forum
    Ok, my 98 Jeep Wrangler (in Japan if that's important at all) has a recent issue where when I rev the engine and when driving and let off the gas the rpms drop way below idle and sometimes dies. It idles smooth at about 750 no problems, but give it gas and when it comes back down it dips to...
  6. High Idle and Missing Coolant

    TJ Tech Forum
    He Y'all, I've got a high idle problem with P1294 code thrown(sometimes) I'm trying to figure out. She'll start out with an idle about right typically when cool, but after she warms up idle will sit anywhere between 1500 and 2000 RPMs. What I've done so far... Cleaned Throttle body and...
  7. 95 YJ Idle Issues

    YJ Tech Forum
    Feel like I've been searching the forums forever now so decided to make a thread on this. I've been fixing up my YJ as problems appear and it's constantly had an issue where if I'm idle for too long the rpm starts dipping and around 500 the car will just give out. After it turns off it takes a...
  8. Another 2000 jeep TJ running poorly, at a loss.

    TJ Tech Forum
    Ok, so I know there are already tons of posts about TJ's running rough/rich. I have read through pages and pages of these but have yet to find one that solved my problems. To start I will give the vehicle info and what has already been done. 2000 jeep TJ 4.0 3 spd auto 140XXX miles What...
  9. Most common opinion on my Idle?

    TJ Tech Forum
    I have a 98 Jeep TJ 2.5 SE. I just swapped the motor from a 95 YJ. Swap went beautifully for a first time but now i'm running into the issues. When I start my Jeep it idles at 1,000 rpms. Once I gas it to around 2k rpms or more, it idles at 2k rpms! It'll idle at 2k for a while and then maybe go...
  10. 2008 JK Stuck throttle/engine speed at idle.

    JK Tech Forum
    Hi, I recently purchased a 2008 JK. Last week I had it inspected and in the shop to do some repairs including a new intake manifold gasket. I only drove for a few hours since getting it and taking it to the shop but did not experience this problem so far as I can tell. Since driving it home...
  11. 97 TJ Idle and Throttle Issues

    WF New Member Check In
    So I've read many posts on this site but this is my first time posting, so bear with me ... having an idle issue on my 97 TJ, will apologize for length of thread but want to share everything I've done to date. ~5 weeks ago check engine light came on doing about 45 mph, started running rough and...
  12. 2003 No idle ghosts

    TJ Tech Forum
    I'm no mechanic and this 4 cyl. 2.4 L 2003 wrangler has some ghosts, so it should be a fun project. I just towed it back to Salt Lake from the desert where a small shop and dealer both looked at it shortly without figuring it out. Any input is much appreciated Symptoms... 1) Won't start...
  13. Idle troubles - 2002 TJ Wrangler

    TJ General Discussion Forum
    So I'm driving home last night, and the jeep is running totally normal. I come to a stop to park, and the idle drops to just above the 0 mark on the rpms. I can rev the engine without troubles at this point but everytime I let off the idle drops back down to just above the 0 mark. I went out...
  14. RPMs dip after tap of throttle

    YJ Tech Forum
    When I quickly tap the gas pedal at idle (~680) the RPMS drop for a moment down to 400ish before recovering. She never dies from doing this, but what would cause this to happen? Motorcraft 2150 & nuttered. Havent been able to find an answer out there, but that may be because I am not searching...
  15. 1999 wrangler idle issue.... NEED Help!

    TJ General Discussion Forum
    okay so here's the issue.... i've been trying to diagnose what i think is a vacuum issue in my 1999 tj, it's a 4.0, stick, 75,000 miles, everything runs great except one issue. when it gets to temperature periodically the idle will drop from 750 to as low as 200 and bounce back and fourth for a...
  16. Any ideas what the problem is?

    TJ Tech Forum
    My 2005 TJ Rubicon is acting up lately and I can't figure it out. After driving on the highway or 45mph and above, the engine spits and sputters when you come to a stop or slow for a turn. This happens usually after the engine is thoroughly warmed up. I've cleaned the throttle body, changed...
  17. 87 YJ Stuttering and Chugging

    YJ Tech Forum
    This is my first post here. I have done countless hours of research and I am unable to fix my problem. I have a 1987 YJ with the 4.2L I6 & Automatic Transmission. It has a Weber 32/36 carb, which was not installed by me, and I have installed a DUI distributor to completely eliminate the...
  18. Motorcraft 2150 Small Issue. Please Help!

    YJ Tech Forum
    So I installed the motorcraft 2150 carburetor (bought from the eBay guy) onto my 1989 jeep wrangler yj 4.2L and I am pretty happy with how well it cleans everything up. There is just one small issue when I press down on the throttle to give the carb gas it revs up and then when i let the...
  19. Crazy Idle and Sputtering

    TJ General Discussion Forum
    Hey guys, So I have been driving my 1998 TJ for a few years now, and recently parked it for a few months while I drove a truck over the winter. By the time I got to cleaning it up about a week ago, it had a dead battery. But after charging and prepping for the road, it ran good for a few days...
  20. 'Cheating' fast idle on start, JK Pentastar

    JK General Discussion Forum
    Fast startup idle seems to be a common issue with Pentastar JKs. I have read many threads on this on Wrangler forum but will admit to still being confused as to startup RPM. Maybe some of you more knowledgeable JKers can help. I live in south Florida, not exactly a challenging place for...
Top