See above
Lots of guessing.
old car, but is Chrysler made, good that. 93+
ok, the car has a cel lamp. is it glowing running\'?
this is called misfire. is the engine stalling?
on all cars that old the first thing do is check compression.
the rules to end misfire are this (a full tuneup)
fails
1: compression all the fuel and spark in the world can not run dead cylinders. ever.
2: then spark, check that all spark plug tips are clean and the spark is strong. then check timing, if any thing here is wrong fix that next.
3: fueling this is complex and is always last. after spark.
I6 4.oL is nice motor owned 3 since 1988. zillion miles on them.
unlike 88s your\'s dont suck. mine had horrid french RENIX EFI......
nasty that..... is...
so you do the flash test on the CEL yet, see if you have DTCs stored.
if not why not? this be like first. its free, and is very helpful
if you have DTCs/ stored. DIag mode is activated with.
put the key in the ignition and turn the key to run (not start), then off, then run, then off, then run (that\'s 3 runs and 2 offs). Leave the key in the run position
count the blicks, best done just after misfiring.
fueling is complex.
6 injectors that can leak ,or clog.
the test is called a injector balance test. but is never done
before the 3 fuel pump pressure tests and the 2 regulator test
never. are those to be skipped and the tool is $20 lousy bucks.
if you get this far , we can do fueling all day. long.
but we also check all sensors for valid inputs.
as all ECU puke with bad inputs, all computers for that matter
saying good fuel pressure means zero with EFI, ZERO
only PSI matter.s not squirt tests. or other dribble tests.
those only proves pump is not 100% dead.
SOURCE: 4 cyl. won't start,new plugs, wires,cap,etc.
a crank sensor tells the coil to fire.are you getting a signal at the coil to fire?
SOURCE: When driving sometimes loses power intermitedly
I got 96 and more then half the time its always the pumps on jeeps
SOURCE: 91 Jeep wrangler New everything idles rough, no Power then dies
you check for miss how is compression
SOURCE: I have a 1994 Jeep Grand Cherokee Laredo 6 Cyl.
CHECK ASD RELAY THAT IS AUTOMATIC SHUTDOWN RELAY IN THE POWER DISTRIBUTION CENTER UNDER THE HOOD IN ENGINE COMPARTMENT.IF ASD RELAY GOOD PROBLEM COULD BE CAMSHAFT SENSOR IN THE DISTRIBUTOR.TO SAVE TIME AND MONEY HAVE JEEP SCANNED FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULTS.
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SOURCE: My 1997 jeep wrangler 2.5L
Hi and welcome to FixYa!
This will be caused by a faulty distributor coil. You may want to swap the coil and observe how it goes.
Hope this helps and thank you for using FixYa! Have a good one!
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