Question about 2002 Jeep Grand Cherokee
Check engine light just started blinking. but stops and stays on only when not moving.
Posted by Anonymous on
P0303 cylinder 3 misfire
P1763 skip shift solenoid circuit
A blinking check engine light usually means exhaust system
Posted on Apr 25, 2015
No engine stated.??????????
303 is gross misfire on #3 cylinder. on all cars.
its a for sure thing, means bad combustion on #3 and its power is weak. 1763 is tranny The 7 means that. and is problem2.
ever get a 60k miles tunup this decade?
sparks plugs, spark wires, filters, air and fuel>?
spark plugs dont last life of any engine.
THE CEL blinking (oper guide tells) means that misfire
is burning the CAT converter to a crisp. (raw fuel + air does that)
the opr. guide says get it serviced, fast, dont drive fast or tow anything. all great advice in the glove box.
get a cheap tuneup, and magic can happen in most cases.
misfire has many causes. over 20.
but a tuneup not done, is 99% cause. (due to nobody doing them)
only fate , determines truth, not statistics....
for example you sucked a valve on #3..
if the new spark parts dont fix #3 a compression tests is next.
or an injector balance test say from #3 to one other injector.
all this is like 1hr work, but no engine stated, so.....
Posted on Apr 24, 2015
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Posted on Jan 02, 2017
Your right about the two codes. It's really a transmission part.
As soon as you open up the transmission pan, it right there.
But, I would leave this up to a transmission place. It may need a special type of calibration tool for the new sensor.
As for PO303, that is a missfire in cylinder #3
I hope I answered your question.
Posted on Mar 27, 2009
Code 12 = Recently disconnected battery
Code 14 = Coolant sensor high resistance or shorted
Code 43 = Knock sensor or Electronic spark control circuit fault
Code 55 End read code.
Hope helps (remember rated this).
Posted on Jun 12, 2010
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