Question about 2000 Kia Sportage

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VERY ROUGH, SHAKY ENGINE AT IDLE, ENGINE PERFORMS WELL, HAVE REPLACED MOTOR MOUNTS , BUT PROBLEM STILL IS THERE. ANY SUGGESTIONS?

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This is likely an engine misfire. Check and replace all sparkplugs if it has not been done in a while. To do so, you will have to remove the throttle body (not hard to do) and then the black plate on the top of the valve cover. After doing so, there are 2 coils and 2 wires to which cover the spark plugs. Double check the insulators on the coils and the wires for evidence of "tracking" or white marks indicating the wires have a leak and it is grounding too soon. You can purcahse the insulators seperate I do believe. Replace the spark plugs with either NGK or Nippon Denso. This should take care of it. Let me know if you need anything else.

Posted on Oct 14, 2010

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2000 toyota solaro, very bad vibrating when sitting idle, especially when ac is running. replaced all the motor mounts. it didn't vibrate until I changed the motor mounts. ???help


Maybe the drain on the battery is causing the engine to slow during idle This might cause the engine to run roughly and induce vibration. Why change motor mounts. Have a service and refit the original mounts if they are not an issue
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Rough idle/ not accelerating/coolant leak


Rough Running Engine - James on Engines #2 - Bell Performance

https://www.bellperformance.com/blog/rough-running-engine
Apr 21, 2015 - When diagnosing an engine with a rough idle, there are certain things that must be ... If the problem does not reoccur, the codes will be erased by the computer. ... when accelerating the vehicle, which causes a higher fuel demand. .... it was water in gas...added added Gas LineAntifreeze/Water Remover.

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Engine idling rough on park and rear gear


There is no TSBs for rough idle and the term rough idle can be taken two ways one is like a vibrating idle which is motor mounts wore out. The other is a slight miss in engine and there are are quit a few reasons fot that but the most comon reason is a vacuum leak. But the way you described you problem park and reverse I leaning more torwards a bad motor mount due to a vaccum leak would also do it in drive.

Nov 27, 2010 | 1994 Geo Prizm

1 Answer

I have a 1994 Honda Accord 4 door v6. I have rough idle when in drive and smooth idle when in neutral. Also rough take offs from a stop or slow speeds. If I pump the gas pedal a few time the rough take...


  • does the engine miss? bumps is a rythmic pattern?
  • an engine miss will appear to diminish at higher rpm due to centrifical force.
  • other possible problem broken or flat motor mount.
  • is the idle rough in reverse?
  • if not
  • open hood
  • start engine
  • Left foot on brake (hard)
  • start engine
  • watch engine as you select drive
  • still holding brake with left foot / throttle gas with right foot
  • does engine dramatically move?
  • if so replace motor mount on offending side
  • if not possible engine miss or transmission problems

Jul 10, 2010 | 1994 Honda Accord

2 Answers

I have a 325bmwxi that is idleing roughin drive


bmw should NOT SHAKE THE STEERING WHEEL AT ADLE. OK SOUNDS LIKE ITS RUFF UNDER LOAD LIFT THE HOOD AND CHECK FOR A HISSING SOUND IF SO IT IS VACUUM LEAK. MOST COMMON. iF TAHAT ISNT IT LETS MAKE SURE ITS IDLEING AT 800 RPM IF HIGHER PLEASE PUT ON FORM HERE AT FIX YA AND WE CAN WORK THIS OUT CHECK IDLE, CHECK ENGINE LIGHT, AND THEY ARE BAD AT NEEDING MOTOR AND TRANS MOUNTS MY BET WOULD BE ON MOUNTS

Feb 12, 2010 | 2004 BMW 3 Series

2 Answers

Rough idle when placed in drive. 04 optima


If you have a rough vibration at idle when in D and not when in P, it may be due to the motor mounts. Even one that has gone bad will cause a vibration at idle when in Drive. I was able to isolate the problem by disconnecting the transmission mount under the airbox and suspending the transmission while i started the engine and put it in Drive. When i did that the vibration went away.
When i reinstalled the mount it came back. My problem is the transmission motor mount under the airbox.

Jan 03, 2010 | 2004 Kia Optima

2 Answers

1997 Ford Contour with a rough idle while stopped


This is a common complaint on these cars. I own a 96 myself.
Assuming that you engine is fine and runs smoothly under normal operation, and just is rough "feeling" at idle while stopped; then I would suggest changing the motor mounts...the mounts may not be broken, but the rubber isolators get worn and soft, and transffer normal engine vibration into the chasis of the vehicle. Mine was doing the same after changing the mounts good as new again.
Please note...don't use cheap mounts, by the better grade/quality mounts.

Aug 27, 2009 | 1995 Ford Contour

1 Answer

Rough idle


two things idle air control valve could be bad or you could have a broke motor mount.mine had a broke motor mount.

Nov 19, 2008 | 1999 Dodge Stratus

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