1987 Ford F150 starting

1987 FORD F-150
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SEALEVEL
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Engine Mechanical problem
1987 Ford F150 V8 Four Wheel Drive Automatic
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In the morning , first start is very difficult. Engine turns over forever never even fires. Then out of the blue starts up and runs great. Will restart . Hours later once again difficult to start.

New fuel pumps in front tank and near motor. New wires and distributor cap. Other than starting runs great.

thanks , R
Apr 5, 2008 at 9:35 AM
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RASMATAZ
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Next time it refuses to start do below this will tell you whether its a fuel or spark problem

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.

Fuel pump and Injector/s checks out-start checking the ignition system-power to coil, coil/s itself,distributor pick-up,control module, Cam and Crankshaft sensors.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
Apr 5, 2008 at 9:41 AM
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