Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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Do you have a scan tool?
Fuel pressure gauge?
My suspicion is that you have a vent solenoid that has failed causing the hard to fill problem. The hard to start problem my or may not be related.
It could it is not a common symptom.
I would change the vent solenoid as it is fairly inexpensive and easy to change.
I would not expect it to fix the running problem.
The most common failure on these for running badly is the distributor gear is badly worn. Are you comfortable with pulling the distributor?
make sure you mark it prior to pulling. It needs to go back in exact position. I suspect you will find worn distributor gear.
OK. I didnt see that.
Then I would need you to get it scanned and get a CMP offset value. The value should be 0 + or minus 2 degrees. read at over 1000 RPM
I would suspect it is off.