When I'm idle at a stop light the engine starts revving though the rpm needle doesn't move
SOURCE: 02 Jeep Liberty check engine light and trans. revving
SCANN-TOOL THE CODE ,IT WILL COME UP WITH A TRANS CONTROL UNIT.
SOURCE: My 92 Jeep Wrangler runs strong, but sometimes it
This jeeps comes with a factory defect on the electronic ingnition system, I resolve this replacing the ingnition for points type, never died again.
SOURCE: splurtters anf splurts, engine light comes on looses rpm @ stops
Engine performance will directly affect trans operation. You need to do some testing to determine if your problem is fuel or ignition related. Begin with basics such as condition of fuel filter, ignition wires, cap and rotor etc. then, using an inexpensive manual and digital volt/ohmeter, do some specific tests if you haven't already found the problem. If you have a question about anything you find, I or someone else here can help you!
SOURCE: Engine 258 i6 was running great - suddenly started
Pull the plugs & have a look at them. Look for oil deposits, or liquid on them. Are you losing any coolant? Is it using any oil suddenly?
SOURCE: rpm revving up to 2500
check inlet manifold for vacumn leaks on engine like a breather or a take off for the heater flaps or even the stepper motor for the idle
http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
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Engine cuts out at 3000 RPM?http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
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Cold start problem and vehicle shudder around 2500 to 3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
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High rpm in neutral? Inconsistant high RPM in neutral?http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
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Jetski Sputters and Low RPM? http://whatisbyme.blogspot.in/2012/07/jetski-sputters-and-low-rpm.html
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Fuel Injection Problem And RPM suddenly increaseshttp://whatisbyme.blogspot.in/2012/07/fuel-injection-problem-and-rpm-suddenly.html
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2005 Toyota Highlander: Engine runs hard RPM below 3000?http://whatisbyme.blogspot.in/2012/05/2005-toyota-highlander-engine-runs-hard.html
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1987 Toyota Camry: RPM Drops going Up hills?http://whatisbyme.blogspot.in/2012/05/1987-toyota-camry-rpm-drops-going-up.html
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Cruise Control stops working, Excessive cranks to start the engine and RPM goes max 2500 http://whoisbyme.blogspot.in/2012/07/cruise-control-stops-workingexcessive.html
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1990 Toyota 4Runner: Engine cuts off when reaches 2000 RPM?
http://whatisbyme.blogspot.in/2012/05/1990-toyota-4runner-engine-cuts-off.html
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1999 Toyota Camry: Erratic stalling and high engine RPM at idle?
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
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1995 Toyota LS: Misfire at idle or low RPMhttp://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html
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Lexus RX: Tapping noise under Valve Cover At Low RPM?http://technoanswers.blogspot.in/2012/04/lexus-rx-tapping-noise-under-valve.html
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These will help.
Thanks.
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