new guy

['01FordF150]

I have a 2001 F-150 4.2L V6. Just replaced the oil pump. And have been having issues starting. (Even before changing oil pump). It'll crank like normal but doesn't turn over. Any ideas are greatly welcome.

[lee reece]

I have a 2001 F-150 4.2L V6. Just replaced the oil pump. And have been having issues starting. (Even before changing oil pump). It'll crank like normal but doesn't turn over. Any ideas are greatly welcome.

How many miles on it? Do you no if its firing or not?

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['01FordF150]

It has over 155k and as far as i can tell its firing.

[Jersey_Joe]

Welcome to the forum. Spark? Fuel? Check ur fuses. Might b somethin stupid but I'd start there bud

[Raptor05121]

So the engine spins, but it does not fire up? At all? Occassionally? Turn the key on a listen for the fuel pump to pressurize.

['01FordF150]

Yes engine spins but does not fire up. Occasionally it does fire up. After i replaced the oil pump it fired right up. I let it fun for a few min and tried to start it again and it wouldn't start

[lee reece]

Yes engine spins but does not fire up. Occasionally it does fire up. After i replaced the oil pump it fired right up. I let it fun for a few min and tried to start it again and it wouldn't start

Sounds like low fuel pressure I would check that and get back to us!

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['01FordF150]

Thanks guys i will check after work

['01FordF150]

Fuel pressure is fine. So I thought to check the battery. I took the battery from my wifes car and put it in the truck and its started every time. O'reilys said the battery is good however im not so sure.