1990 Ford F-150 Repair Question
How do i test to see if my truck is vapor locking? and how would i fix the issue.
Don't sound like a vapor lock to me-burning up Cat's to me its running too rich-injectors are sticking open and causing your low fuel pressure-try flushing the fuel system and see what happens
How would i go about flushing the fuel system? what would i use?
Take it to a shop or use a fuel injection cleaner and run it thru and see what happens
I've used cleaners fuel stabilizers and octane boosters all made by Lucas.
What liter engine is this?
4.9L 300 straight 6.
Test the ignition coil's primary and secondary windings resistances could be it heating up and breaking open-let me know the readings
Let me point out a couple things. First, vapor lock is not even possible with this system.
Second, if you really only have 40 PSI of fuel pressure, that has to be resolved before going any further.
That should never go below 50 with the engine off and 45 with the engine running. That will cause a world of problems. The cats were glowing because of how the engine was running, not because there was anything wrong with the Cats, although getting them that hot can melt the insides.
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how do i test the coil windings? ive actually never done that. and its a new coil. only about 3-4 weeks old. the old one smelt like burnt wiring.
Go to this link: http://www.youtube.com/watch?v=rJYJ3KvPhhY