rough idle

  1. Jhnpv

    95 FZJ80- Rough idle only when the AC is on. Otherwise, low idle at 600 rpm. Where should I begin?

    Morning everyone, I have a low idle at 600 rpm, but when the AC is on, I hear a click from the engine bay, and the car idles at about 900rpm. About two minutes later, another click (which sounds like an "off" click), comes from the engine, and the car nearly stalls at 200 rpm until it rises to...
  2. TX FJ80

    Is it just me?

    I have been chasing down a lumpy/hiccupy idle on my FZJ80 since I brought it home and I am *almost* done with baselining, at which point I will just accept that's the way it is. My wife has her brand new NX300h in the shop (rodent damage to a wiring harness - don't get me started) and we have a...
  3. TX FJ80

    1997 1FZ Hiccupy idle and running rich

    1997 FZJ80 - stock 250K total miles 60K miles ago - HG, new head, new everything "upper engine" besides intake/TB Hiccupy idle and running rich. I describe it as hiccupy because it isn't stumbling, low, high, or even shaking the truck. You can only really feel it in your seat, and it's not 100%...
  4. J

    74 FJ40 Rough Running

    I have a 74 FJ40 that wont run and if I can get it to run it idles really rough and wont let me accelerate to higher rpms without dying or backfiring. It is acting like it jumped time but is that even possible with timing gears? I can turn the crank a significant amount before the rotor in the...
  5. Toy Yoda LC

    Hello and Help

    Hello everyone. I started my account about 2 weeks ago when I bought a 1997 FJ80. Drove it home today. It's in decent shape for an upstate NY vehicle... some rust so some light bodywork is in my near-future. 157k miles on it and when I test drove it, it ran extremely well... no issues or flags...
  6. ckennedy

    Newbie hit a roadblock- Running rough

    I bought my 1994 FZJ80 about two months ago. Previous owner thought he threw a bearing therefore needed a motor swap. He provided a 'running' replacement 1fz-fe in the price. I knowingly bought it as a project and a learning opportunity. I haven't run into any roadblocks swapping the motors in...
  7. toyoteroMD

    80 series codes

    Good day, I have a question about my cel. I have a 94 80 series, with my 02 sensor plugged in I get code 26(running rich) when i unplugged my 02 sensor i only get code 21(oxygen sensor) has anyone gone thru this. I have replaced IAC TPS INTAKE HOSE!!
  8. JareBear89

    3FE Fuel in oil

    Hey guys, Long time listener first time caller... Have fuel in my oil, changed oil ~1000 miles ago and now oil is above full line (was below for several days before commuting for a week) Seen a few people post about this but no real resolution. Some say leaky injector, some say PCV valve is...
  9. thomasedwa

    FZJ80 died while idling for 10 minutes and has been shifting slow recently

    For the last month my 80 has been shifting a little slower, I didn't think much of it since the 80s aren't known for their fast shifting, but yesterday, I put my car in park and left the AC running while I was waiting for someone. About 10 minutes of keeping the car in park the RPMs started...
  10. DesertCruiser80

    Low Rough Idle After Changing Battery

    Hello, I recently got a '92 FJ80 and have been working out the kinks to get to run better. The truck was bought with a broken ignition cable for the 6th cylinder. I have replaced spark plugs, cables, distributor cap and rotor. The engine was still idling rough and at low RPM after that so I was...
  11. WarriorJ

    Rough idle after high speed

    Hey people! Problem with my 94 fj80. If I'm on the back roads keeping it under around 30mph it wont happen, but after I've hit the freeway and coming to the stop light, it always rough idles, sometimes dies. Happens almost everytime I've been driving high speed. I'll put it in park, hit the gas...
  12. F

    Vacuum leak solved

    Earlier this year I acquired (paid too much for) a 78 Fj40 and began a DIY restoration. I was fortunate to have found a truck that was 100% original and have enjoyed resurrecting my 1970's mechanical intuitions. The main difference between 1970 and now is that its much more difficult to slide...
  13. jltemlock

    Rough Idle No CEL Code

    Hi Team: I'm kind of a newb to working on rigs, so hoping for some guidance from the experts on what I should check on my '93 FZJ80. I'm experiencing a rough idle and rough engine under load. It also feels like I'm down a bit of power, but I can swear by that claim. I'm not throwing any CEL...
  14. B

    1996 fzj80 145k rough idle, hesitation,

    I pulled into the driveway today and my car was running rough. Fine all the way home other than that. I rev the engine and the CEL comes on. Check the code and it says there is a misfire in cylinder #1. I can smell gas or rich exhaust in car. Pop hood while it is running and see exhaust...
  15. jltemlock

    Idle Air Controller (IAC) Valve Test failing

    Hi Everyone: I'm having trouble with a rough idle when my '93 FZJ80 is in gear. I initially thought it was a bad IAC, so I pulled the sucker out (which is a massive pain) and tried testing the unit by hooking it up to my battery via alligator clips and following the FSM test guide. Low and...
  16. Y

    [1991 fj80] Hard starting and rough idle help

    I got a starting and idling issue on my 91 land cruiser. It will start with no problem in the morning when the car is cold. It usually takes 6-8 cranks to start. It will took 15-16 cranks when the temperature is high. I can feel some misfire when the car is idling, but it will never stall. It...
  17. sunrk

    Rough / odd idle behaviour with old 1HZ motor

    1hz motor in my 80 has a really rough/odd idle behaviour where it feels like one injector randomly doesn't fire at random intervals. The injector pump and injectors were replaced about 6 yrs ago. Never been touched since. I could replace injectors with a full set of brand new ones myself but I'm...
  18. hygge

    Rough Idle Crap

    After having recently installed a number of things, I am trying to diagnose what the F is up with my FJ62 truck. First, what I have done recently. Over the last two months the truck was out of commission. I replaced the side cover gasket ( which meant that I took out the distributor, air...
  19. morganism

    Cold start and rough run on all older toys ?

    Ok, i have started having problems now that it is finally getting cold out here in the desert, but the weird thing is my folks 2001 Corolla is having loss of power and stalling at lights problem too. We had it running great thru the summer after lots of O2 sensor problems last winter. Mine is 83...
  20. R

    3b Motor struggling to start / Knocking noise and rough idle

    So i'm having a bad time starting my 1985 3b motor. It takes about 30 to 40 seconds of cranking and when it eventually starts there's a loud knocking noise from the motor but immediately stops. The idle speed and acceleration vibration is immense and does not ease even at temp. Also there's a...
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