Truck stalled driving down the road. When it cooled off it started and drove again a short time. Now it will not start. Replaced the fuel pump with no luck. Truck is getting spark. Cleaned relay switch connections. Wondering if it is a relay switch or fuel pressure switch?
I had trouble like this with a 1991 fuel injected version of this engine. It was an intermittent problem and the relay could be re-energized temporarily by turning off the ignition and restarting. It was a fuel pump relay that needed to be replaced and has been ok for several years now.
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don't know
how do i test it?
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It was the fuel relays. Replaced it and truck runs fine.
Thanks
what is the fuel pressure reading?
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