Question about 2002 Jeep Liberty
I had the Jeep in the body shop having the hood & fenders replaced. It was running fine before. The body shop denies unplugging anything or disconnecting any wires, ground, etc.
Also check coolant temp sensor. They fail for no apparent reason.
Posted on Apr 02, 2015
If it ran OK before the body repair...they may have disconnected the battery before their repairs. That will reset all the engine management adaptations to zero. It will take a few drive trips to get the engine management computer to relearn those values. If the values were very high or low before the battery disconnect....another problem may be at hand.....when the values returned to zero adaptation....the engine "needs" the other learned values that were reset at battery disconnect.
A scan of the engine management system may reveal quite a bit of info......it's worth a scan at a reputable garage if the vehicle continues to run poorly and shut off after several drives.
Posted on Apr 02, 2015
Its misfiring ever do a tuneup this decade?
if it flooding it will misfire, and will stall.
and will be hard to start. if at all, until all that fuel evaporates.
the operators guide covers this, flooding
cranking + WOT,
crank with throttle wide open throttle clears most flooding.
many cars do get worse parked a long time. that is what they do.
seen spark wires go bad, and TPS go bad (really just worse)
the spark wires old love to suck up water, and then short.
Do the tuneup then use a scan tool cranking, to see if you have DTC errors.
make sure its dont flood.
do if the spark tips are soaking in raw fuel that is flooding and the test. (for 100 years, now)
Posted on Mar 28, 2015
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Posted on Jan 02, 2017
SOURCE: Rough idle
Jeep has been having a problem with this. i take it u have a 4.7L or a 3.7L. when the when to fix this problem they should of replaced all the valves (intake and exhaust). theres a tsb on this and the dealer can look it up. even if you paid for the service they will fix it for free cuz it wasn't fixed the first time. take it back to the them and tell the to read the tsb and fix it right.
Posted on May 15, 2008
Have you taken a spark plug out yet? You may have fowled them out. if they are not clean and have a whitish tone to them, then they need to be replaced.
Posted on Nov 28, 2008
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