Question about 1997 Mitsubishi Galant

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97 galant low idle in park or in gear at stop light causing oil lighgt to come on and rough take offs scanned car for trouble codes but runs a clean scan no codes

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Double check your vacuum hoses, fuel filter, plugs and wires and air filter.

Posted on Jul 29, 2009

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My 97 Thunderbird is rough idling. I cleaned the bank 1 02 sensor and it still has a rough idle. I can floor it and the idle goes away.


You don't clean O2 sensors , if bad you replace them . An only if there is a DTC - diagnostic trouble code or you check out O2 sensor performance with testing , using scan tool , lab scope or multimeter . A rough idle is usaully caused by a vacuum leak , a engine misfire , IAC - idle air control air passages clogged . There are videos on youtube on how to test to find rough running problems .

Nov 06, 2016 | Ford Thunderbird Cars & Trucks

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Why are so many trouble diagnostic codes being thrown


sounds like you speed sensor and your throttle poistion sensor

Sep 02, 2014 | Cars & Trucks

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98 cadillac sls idling rough


try your ful injecton you mite have a injector clogged up try seafome it mite work cant hert to try

Apr 20, 2013 | Cars & Trucks

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I have a 2009 Nissan Altima. It just started to idle very rough when it's in drive-at low rpm, like when stopped in traffic or at a light. It does not do it when it's in Park, Neutral or Rever


might be the CAM & CRANK SENSORS ! HAVE YOU CHANGED YOU AIR & FUEL FILTERS LATELY ? DO SO IF YOU HAVEN'T. DID YOUR SERVICE ENGINE SOON LIGHT COME ON ? IF SO, GO TO AN AUTOPARTS STORE, HAVE THEM PULL OUT ANY TROUBLE CODES,FROM ECM, IF IT SAYS CAM SENSOR, REPLACE THE CRANK SENSOR AT SAME TIME ! ALSO, THE OXYGEN SENSOR PLAYS AN IMPORTANT ROLE, YOU MIGHT REPLACE IT ASWELL . ALWAYS KEEP FILTERS NEW, OIL CHANGED EVERY 3000 MILES.

Mar 26, 2013 | 2009 Nissan Altima

1 Answer

My 02 galant runs rough when put in gear but in idle runs okay it also surges up and down replaced the plug wires


Okay, lets start with the oil you found on spark plugs when you were replacing them. this oil is coming from the valve cover tube hole area, notice the plugs go into the holes in the valve cover, there is a gasket the goes around the top of the tubes and when it leaks it goes into spark plug hole, the valve cover needs replacing .
this will cause rough idle and running problems, after replacing valve cover gasket the holes must be cleaned, using crab cleaner, spray into holes and use air to blow out . this may need to be done a few times to get oil out .
after oil is removed . then remove spark plugs and wipe them clean.
The next step is to find the air (vacuum leak) , you said you hear it around intake tube. check for cracks or broken vacuum line. this leak will cause idle problems and driving problems,

Nov 18, 2012 | Cars & Trucks

4 Answers

E ng lite came on pulled to stop light engine ran rough and was shaking ck oil was low filled oil ran better this am wife went to take truck to work got to the end of block engine ran rough brought back...


I don't think the rough running had much to do with oil level, since it started running rough a 2nd time. Check the fuel filter and ignition timing.

Sep 20, 2010 | 2002 Ford Ranger Regular Cab

1 Answer

Rough low idle in gear when stopped at a light.


probable vacuum leak query brake booster

Jul 26, 2009 | 2001 Dodge Neon

1 Answer

2000 mistubishi galant es idling rough seriously


Idling problems may be cause buy a number of issues.  You may check out the fast idle control valve and PCV if they would need cleaning.  You can check out the timing it may be advanced, that is why you feel that the car runs hard.

Jun 13, 2009 | 2000 Mitsubishi Galant

1 Answer

Oil light flickering on when @ a stop light


sounds like idle speed is to low,need to have rpm checked against manuf.suggested rpm

May 08, 2009 | 2003 Mitsubishi Galant

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