My 2009 Jeep Liberty With the 3.7 V6 Runs rough at 1800 to2600 rpm after starting until engine warms up. ( 5 to 8 mins) Started after Spark Plug Change Any Ideas?
What is your question?
My 2009 Jeep Liberty With the 3.7 V6 Runs rough at 1800 to2600 rpm after starting until engine warms up. ( 5 to 8 mins) Started after Spark Plug Change Any Ideas?
No Codes or check Engine Light at all just rough pu put on they way up to 24 rpm
NGK Plugs as specified by Owners Manual Gapped to .043"
Thank you.
What makes this problem better or worse?
Only doe sit while engine is cold. after 3 to 5 mins it stops.
How long has your 2009 Jeep Liberty had this problem?
RepairPal Certified shops can diagnose and repair your 2009 Jeep Liberty. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Make sure plugs are: ZFR6F - 11G
Did you service the ignition coils? Coil boots, once removed from the plugs, are often rendered useless and must be replaced, as they can cause arcing and rough running.
Just a guess, but relevant. Good luck!
www.repairpal.com/repair-shops
Thank you, Maybe you can assist again.
Replaced Plug wires from Coil packs to plugs on pass side of engine. Coil Boots are coming in Monday.
But....
Now wont start and just bucks and misfires. Code says Cyl 1,3,5 are misfiring. Have not even touched thee plugs on that side except to unplug and re plug the wires that go over to the other side .Before the wires it ran and started just rough running above the 1800 mark. I put the old plug wires back on but still not running and just bucks, any further thoughts I am lost, Thank you
Thank you, Maybe you can assist again. Replaced Plug wires from Coil packs to plugs on pass side of engine. Coil Boots are coming in Monday. But.... Now wont start and just bucks and misfires. Code says Cyl 1,3,5 are misfiring. Have not even touched thee plugs on that side except to unplug and re plug the wires that go over to the other side .Before the wires it ran and started just rough running above the 1800 mark. I put the old plug wires back on but still not running and just bucks, any further thoughts I am lost, Thank you