1989 f150 inline 6 runs good for a min and spit and sputter and dies
Need help on fuel system or vacuum
Start with fuel pressure test
When it dies will it restart? If not then spray a little starter fluid in the intake tube, if it starts and runs briefly then it is fuel related, but if it won't start then it is spark related. Do that then repost back here and someone will help you with further diagnosis.
Check the vacuum hoses for cracks and check fuel pressure
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