Has a misfire

Asked by GuruBFC3X Jan 20, 2019 at 10:35 PM about the 2008 Saturn VUE

Question type: Maintenance & Repair

When I first start it. It runs fine for about 45
seconds then the engine light starts flashing
and it has a miss real bad. I have put new
plugs took the injectors off and cleaned them
they open and close. I have moved the coil
packs around. I took off the engine veritable
timing solenoid off cleaned and check them
..after I start the car turn it off when it started
to miss . Do this about 10 times Finley it will
start to run just fine the engine light stops
flashing. What is wrong with this engine????
Help.  

1 Answer
22,630

Guru9FSV8 answered 5 years ago

What codes? Did your misfire move when you moved coils? Did you put new o-rings on injectors when you reinstalled them? Hook up a bidirectional scanner that shows misfires per cylinder and narrow it down further.

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