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Rpm fluctuates while driving - Cavalier Chevrolet Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: why rpm fluctuates?

Static electricity or electricial interfearence.

Posted on May 13, 2014

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2 Answers

How do I fix RPM fluctuation problem


check you charging system, you must have bad or loose alternator wire

Apr 02, 2015 | 2004 Mitsubishi Lancer

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Why rpm fluctuates?


Static electricity or electricial interfearence.

May 13, 2014 | 2001 Saturn SL

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While driving and holding steady speed, the rpm's fluctuate 200-300 rpm's


How many miles are on this vehicle? Is the engine light on? If so, can you have the codes read? RPM fluctuation can be anything (both caused by mechanical or electrical changes or failure/s). Fuel pressure, engine compression, 02 sensors, worn or sticking TAC unit, vacuum leak, poor fuel quality, dirty or defective MAF sensor, clogged air filter, old spark plugs, excessive exhaust back pressure, stretched timing chain, over due oil change, worn or damaged throttle pedal, or worn out spark plugs. These can all cause your symptoms. Let me know if you have anymore questions.

Feb 16, 2014 | 2005 GMC Envoy Xl

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I have Lexus ES 300 Model 2001 purchase month back. I am facing two problems one is fluctuation in rpm when car is idle and even during drive i feel fluctuating in rpm. I replaced batter month back but now...


Hi,first of all I would get the battery and alternater checked to make shore they are bothe performing properly,I know you have replaced the battery but sometimes even new items can be forty,and with the fluctuation it maybe the maff sencer,the best thing is to have a diagnostic don to find the couse.
best of luck,PH.

Oct 28, 2013 | Lexus Cars & Trucks

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What cause rpm gauge needle to fluctuating from1000 to 2000?


fuel filter,air filter,could be TPS sensor,crankshaft sensor.weak fuel pump.

Feb 21, 2013 | Cars & Trucks

1 Answer

2002 escape 3.0 idle fluctuates and misfires when driving


No such thing as a tune-up

All you did was replace spark plugs which should be
done every 3 years

Oxygen Sensors get replaced at 100,000 miles which you
also did

You most likely have an intake gasket leak,smoke test
the entire Evap System & Engine

You also are have bad igniton coils

Jan 18, 2013 | 2002 Ford Escape

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RPM fluctuations during light throttle.


Transmission problem need to rebuild.

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The engine rpm's fluctuate both while driving or


just happened to my 05 Kia Optima. It needed a new coil pack.

Jul 23, 2011 | 2005 Kia Optima

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My 2004 Odyssey at 1000 to 1500 rpm will growl and the tach will fluctuate quickly. If we raise the rpm at higher speeds it does not happen. Local dealer cannot resolve the issue...its driving us...


Try replacing TPS (Throttle Positioning Switch) These are basically a rheostat and after time they develop a wear/hot spot - usually right around highway cruising position. When they develop a hot spot you get hesitations and RPM fluctuations

Feb 24, 2011 | 2005 Honda Odyssey

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