Car is a 06 lincoln ls runs great but i notice when the car is hot and i come to a stop in gear i notice a very light like crumble that feels like its coming from the exaust it doest rev up or anything Its very quick and on lu does it once in a while some people prob wouldnt notice but i do if any one has any ideas would be great i dont think Its a misfire engine Doesnt run ruff at all idk Its a v8
weird idle when at a stop in gear
- Thread starter garcia82
- Start date
I didnt mean a crumble i meant a very small like sputter i cant hear it but i can feel it under my feet sometimes when i come to a stop and Its in gear i was thinking mabey the 02 sensor i dont think Its a missfire but i could be wrong
joegr
Dedicated LVC Member
If so, you will be an exception to the hundreds of experiences posted here.
joegr
Dedicated LVC Member
It's almost certainly a misfire. Marginal COPs (coils) is a very common LS problem that hundreds of us have experienced at least once. The LS is a multi-strike ignition system (at low RPMs) so at idle a marginal misfire does not act like a typical misfire. Your COPs all need to be Motorcraft, aftermarket does not work well here either. If you replace one, you should probably replace them all. If you replace any, you must replace the associated spark plug at the same time. You must check/set the plug's gap to 1.0mm.
Otherwise, if it is the O2, you are the exception to hundreds of experiences posted on this site.