JeepManDan
Junior Member
Bought a 1989 Dodge Ram W150 5.9 360 with factory TBI with an apparent Vapor Lock issue. It starts and idles fine, but when driving for 3-4 minutes on a country road the engine bogs and stutters if more than 1/4 throttle is applied. After that starts it can only limp along at near idle engine speed. Once it cools off that goes away. No check engine light. Prior owner tried to solve this with magnets on the fuel line to cool it, replaced all plugs, wires, coil, cap/rotor, fuel filter, and fresh fuel but no luck. With a mechanic today we tested fuel pressure reads just under 14. We replaced one injector and both seem to be injecting good fuel spray, using ethanol free fuel still not change.
Any ideas? I think maybe fuel pump replacement could help, I will try wrapping fuel lines with heat block, and maybe replace entire throttle body. Any ideas would be very welcome. Thanks
Any ideas? I think maybe fuel pump replacement could help, I will try wrapping fuel lines with heat block, and maybe replace entire throttle body. Any ideas would be very welcome. Thanks