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Question
Silverback2w2
Hello, I recently inherited a 1999 Tahoe LT 4x4, 5.7L Vortec, Auto, 194K miles. Codes are P0300 and P0304.
cylinder 4 has no compression. Fuel pressure is 55psi, Spark is steady and strong on all wires as indicated with an inline spark tester and timing light. 120-125psi on all other cylinders to include 2 and 6. No milk in the oil.
I have not not taken off the valve cover yet to see what’s going on with valve springs yet.
My question is “what sequence should I try to see if it’s springs, valves, seats, rings, pushrods, lifters, etc?”
Thanks,
Dave in Abq.
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