Ford F-150 2004, 4.6L engine replaced and won't start!

Asked by ppod417 Jan 30, 2019 at 11:55 AM about the 2004 Ford F-150 XLT Ext. Cab 4WD

Question type: Maintenance & Repair

Put a new engine in 2004 Ford F150 4.6L and it won't start. Engine cranked
before installation. Can hear the fuel pump kicking on, but it won't turn over.
Any suggestions?

3 Answers
22,185

Gary answered 5 years ago

You need to go back to the basics. If the engine is turning over (starter is cranking), then check for Spark, fuel, timing and compression.

Mark helpful

ppod417 answered 5 years ago

All is good as far as that is concerned. Having a locksmith come to try to reset the key tonight...see what that does. The thing is a nightmare!

Mark helpful

Danautotech78 answered 5 years ago

If you haven't already figured out your problem... Make sure you have the start signal at the small wire to the starter. If it cranks, but no fuel, can be shutdown relay (stupid ford thing). It's also common for the wire harness to get crappy connections when you reinstall sometimes. Just use a power probe and multi meter to trace the power for what is not working properly... Hahaha

Mark helpful

Your Answer:

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