My 99 f150 5.4L will turn over but won't crank. I can tap the relay pump comes on tap it again it goes off. When the pump is running it won't turn off. When the pump is running it still won't crank.
you got air? u got fuel? you got fire? youre missing one of them.
Just checked we got fuel and air but no fire?
It will turn over but won't start. The fuel pump is working.
No fire to the coils?
crankshaft positiin sensor or ignition module become suspect
ya know...thats wrong. the relay is obviously sticking.
Not utta the question but the simple stuff first. find a forum page or maybe a fb group for these trucks. see if youca nf ind the factory service manual on pdf. new bible and better than haynes or chiltons. ill never own a vehicle wo one
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