Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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About your vehicle.
What is the fuel pressure?
What is the compression in the cylinders?
oil pressure is low. i dont have guages to check fuel pressure or compression. seems to miss more at low throttle and run better at full throttle. could be fuel problem but only thing ive not changed is fuel pump. its been missing for a while now and ive drove it. seems fuel pump would have died by now.
i've been told a vacuum leak b4. would a vacum leak cause just one cylinder to miss or all?
runs horrible b4 it warms up. even quits at idle. but once warm its just a mid throttle stumble.
i'll give it a try
ok i have a fuel pressure tester. only place i see to test on top of engine is a needle valve with threads. tester i have doesnt thread on. it says to take apart fuel lines at the tank where rubber hoses connect to metal.