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03jeep lbertyrandom missfire cyl 2 4 6check engine light flashing

Clears up when you shutdown car and restart

2 Answers

Stanley Hope

Contributor 1 Answer
Posted on Dec 29, 2022

Stanley Hope

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Joined: Dec 29, 2022

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2010 Jeep Liberty suddenly started idling very rough. CEL showed misfire on CYL 4 and Coil A Secondary fault. Replaced coil pack. Problem remained. Always idles very rough. Usually runs okay at cruising speed after engine is warmed up, and if rapid misfires begin to occur (causing CEL to blink), stopping and shutting down and restarting engine will usually allow it to run relatively smoothly again for a while at cruising speed. Dealership checked coils, plugs, wires, fuel injectors, compression. Found CYL 4 compression low. Recommended new engine. The Jeep 3.7L engine is well known for serious issues with valves/cylinder heads. Not worth repairing, since there are so many other reliability issues with the vehicle aside from engine problems.

Common problems that I have experienced with this vehicle include power window failures, radio failure, heater mix door actuator failure, brake control module failure, water leaks on rear hatch, etc., etc., etc.

My advice: Do not purchase a Jeep product, and if you must, buy it new and sell it before 3 years/50,000 miles, so as to let it become someone else's problem.

Claude Kayser

Cars & Trucks Master 9,098 Answers
Posted on Nov 28, 2015

Claude Kayser

Cars & Trucks Master

Joined: Jun 15, 2015

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Check Engine Light/Misfire Due to Intake Valve Locks ...

repairpal.com > Problems > Jeep > Liberty

Jeep Liberty Check Engine Light/Misfire Due to Intake Valve Locks/Valves. ...Misfire cyc 4 and random cyc misfires, changed coil packs and plugs... sounds as if rod ... Light came on again (misfire on cylinder 4) - switched coil from 4 to 2. Light ...

Jeep Liberty Questions - Cylinder Misfire code - CarGurus

www.cargurus.com > Questions > Jeep > Liberty

CarGurusMay 27, 2009 - #4 misfire new plugs and coil pack on #4 light came back on after 300 miles if ... How come it stopped misfiring for 2-3 months, and now is back? ... I have a 2005 Jeep Liberty 6 cylinder, engine light came on scaned the codes ...