Engine Mechanical problem
1998 GMC Sierra V8 Four Wheel Drive Automatic 120000 miles
I have a 98 Z71. Cranks attempts to start but does not start. Have an Actron 9180 scan tool. Initially gave me a p1345 code, but after clearing it, the code never reappeared. Compression at 150-160 psi, so I don't think the chain jumped time. Not sure about the distributor though. Once again 1345 code never came back. Have spark and fuel pressure. Fuel pressure I have is 63 psi when you turn key on engine off and after pump shuts off it drops to and holds at 56 psi. Is this normal? Should I be looking at replacing pump? Don't know what else I should be checking. Any help would be greatly appreciated.
Saturday, January 3rd, 2009 AT 2:23 PM