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rough idle

  1. Corolla 12th Gen (Hatch 2019+/Sedan 2020+)
    I bought a CPO 2020 Corolla LE, 45,000 miles and I've noticed that when the car is in drive, the A/C is on, and the radiator fan is running, the car shakes noticeably while the fan is running, but then idles smoothly when the fan is not running. If the car is in park with the A/C on and the fan...
  2. Camry 3rd and 4th Gen '92-'01, Solara '99-'03
    So my neighbor has a 98 Camry le with the 2.2l 4 cylinder and the timing belt snapped and it has sat for the past year and a half or so. I siphoned the old gas out and put 2 gallons of fresh gas in and I replaced the spark plugs (there were not looking great) and I went ahead and put on a new...
  3. Highlander 2nd Generation (2008-2013)
    I have a 08 Highlander AWD it currently has 137,000 MI. After I started up and it idles down has this pulsing vibration. It shakes the console and the whole passenger side of the car as if you were going over those bumps on the passenger side of the road. ( A little bumps that wake you up if you...
  4. Corolla 6th Generation (1988-1992)
    Hey, I'm currently having some issues figuring out what's going on with my ignition system. 1989 Toyota corolla Fx-gt 4age small port auto, A/C delete with power steering - 250xxx KM First off I hadn't started the car in almost 2 years after rear ending a swift, have done the nose cut and...
  5. Camry 8th Generation (2018+)
    Hi all this is my first post here. :) I just bought 2018 Camry SE 2.5, car runs rough at idle while in drive feels like bad engine mounts, but car has 55K miles, when cold engine has additional sound for several seconds then goes away and comes back again. can someone suggest what can cause the...
  6. Sequoia Forum
    Hey all, new member here. And I'm not the most mechanically inclined so keep that in mind. Everything I've learned is self taught via yt. I have an 02 Sequoia. It has like 220k it's never given me an issue besides an alternator replacement. My wife went on a trip and it broke down. Showing...
  7. Pre-88 Toyota Pickup/Hilux
    Recently purchased an 86’ Toyota pickup 4x4 sr5 stock 22re It takes me 58 seconds to reach 55mph and tops out there. I have a rough idle. I figured it’s got to be spark or fuel related so that’s where I started. So far I have replaced: Fuel filter Plugs Plugwires Distributor cap/rotor Pcv...
  8. Corolla 9th Gen/1st Gen Matrix (2003-2008)
    Hi guys, this year I bought a manual Corolla with 180.000 kms/110k miles on the clock with a slight rough idle that has gotten worse lately. It starts somehow fine, maybe taking an extra second cranking, and the idle drops from 1600-1700 rpm when completely cold to 500-600rpm when warm. Then it...
  9. Camry 3rd and 4th Gen '92-'01, Solara '99-'03
    So Camry 98 had idling issues ----------- (it dies at under 1000RPM when hot) MY PROBLEMS NOW 👇 When i move to gear "D" from "Park" while its idling high ( at +2,000Rpm ), engine suddenly goes off. If 1 Gal = 3.7 Litres [ UK ] Then, i only get: 12Miles / Gallon [ US ] Stop and Go...
  10. Corolla 7th Generation (1993-1997)
    Hi folks, I’m having trouble where the car doesn’t like to stay running after a good rain. I’ve replaced the distributor cap and rotor, spark plugs, checked throttle position sensor, replaced o2 sensor, checked for vacuum leaks, basically I’ve been poking around to find the cause of this for a...
  11. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    Today we went to take my wife's 2010 Camry to run some errands. It started right up, but idled kinda rough. Then as soon as she shifted into reverse, the engine stalled. We tried 2 more times, but the same issue occurred. We just got it about a month ago from a reputable dealership, and it's...
  12. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    So I have 3 Camrys, just recently got a 2007 Camry 2.4, it has 176k miles but drives awesome. It idled rough only while stopped in D or R during my test drive of it. Idles fine when not in gear. So I figure let's clean the throttle body and MAF sensor. I did that, and changed the spark plugs...
  13. 4Runner 3rd Generation (1996-2002)
    Sorry this is long i just dont want to leave out details. have a 2000 4runner limited with 3.4L v6 5vzfe engine. Came home from school yesterday and decided to change my spark plugs. I started on the right side opposite of the air intake and replaced all 3 plugs easily. When i got to the left...
  14. Corolla 10th Gen/2nd Gen Matrix (2009-2013)
    Hello everybody! For the past few weeks I have been having issues with my Corolla. She starts hard wether being hot or cold, and she will stall when coming to an almost complete stop. I usually have to switch her in neutral before I come to a stop. Now my father and I have come up with a few...
  15. Corolla 7th Generation (1993-1997)
    Hey everyone, My car is a '94 Corolla DX with the federal emissions 7AFE engine. So I recently removed my intake cam to check something. It's a long story but the short of it is I think the shop I had clean up my head forgot to install the valve guide seals. Turns out you can't see them...
  16. Corolla 7th Generation (1993-1997)
    Sudden Noise and Rough Idle Just at Startup (SOLVED) EDIT: Spoiler warning, on page two of this thread I figured out the sound was coming from the alternator as unplugging it made the sound go away. For anyone with similar symptoms described below, check the alternator using that quick...
  17. Camry 3rd and 4th Gen '92-'01, Solara '99-'03
    1995 Camry, 2.2L, auto, 112k miles This is my mom's car, runs great until recently. Whenever it rains, like pours for a whole day or more, it will idle rough like a misfire. You notice it mostly when idling, even in neutral, not so much in park. When driving you can still feel a slight miss...
  18. Corolla 8th Generation (1998-2002)
    I have a 1998 Corolla with 140k miles and it has a rough idle problem that has me totally stumped. It doesn't throw any codes at all, so no clues there unfortunately. The car has idled rough since I bought it used last year, but I wasn't too worried about the rough idle at first because I...
  19. RAV4 1st Generation (1994-2000)
    So I recently got this 1997 Rav 4 to use as a temporary commuter, but just last week I began having some issues as outlined below: If the car has been off for an hour or more, it starts perfectly smooth and fine Once warmed up, starts to idle rough If engine is already warm, and car is...
  20. Corolla 8th Generation (1998-2002)
    Hey, guys. I've been trying to search for a possible solution in this forum, but I haven't had any luck. Let me explain what happened. I was replacing the headlights on my 98 Corolla. The Front Right headlight had interference, so I decided to remove the battery to have better access--I regret...
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