check fuel pump pressure
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Freshman User
Joined: Jul 2003
Posts: 25
Likes: 0
check fuel pump pressure
My F250 7.3 powerstroke diesel super duty won't start. Replaced CMP . Even though service engine light came on before dying Diablo Predator won't show any codes. Checked batteries, fuses, fuel filter , now trying to checl fuel pump. Read in manual about checking pressure by opening 1/8" plug on top front of right head and installing a guage. Has anyone done this and can you tell me where that plug is located I cannot find it. ASlso any other suggestions. I have been told if the fuel pump is good then it could be the high pressure oil pump. Help quickly please
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
It's that little 9/32 square head fitting behind and below the air conditioning pump near the top of the cylinder head. That's the one for the right side head. The one for the left is located in the exact opposite corner of the engine very close to the turbo.
