I am a forklift mechanic, accustomed to on board diagnostics being built into the trucks. Also new to these groups. Have been searching them. Prior to this condition a service engine light illuminated in the middle of a 2 hour freeway trip, I rompped on it up a hill. no drivability problems. Light cleared after restart on return trip. Then a couple weeks later tough starting, Once it did start, Rough idle. Then would run, And start fine. Then repeat the symptoms a couple weeks later. Now cranks fine, Long cranks >15 seconds cranking will hesitate like wrong timing, Or piston coming up on High compression. Fuel- 62psi and holds. Spark- checked with induction timing light. Changed the Cap, Rotor, Sparkplugs. #1 plug hole will blow my finger off when cranked. I do Not have a Tech 1 Scan tool, But have pulled the codes with a lesser tool. I have a P1406 EGR Valve Pintle Position Circuit Fault. And a P0306 Cyl. 6 Misfire detected.
2 days have been spent checking sensors Ohms and volts and fuses, None bad. I have access to Mitchell 1 On-line and have followed the basic testing as much as I can without the better Scan tool. Could module in distributer be bad? Something here isn't in sync. Last winter I completly went through the fuel system, Replacing pump, regulator, oil pressure switch, relay, connector and terminals at pump head. Any thoughts on this? don- posted
19 years ago