1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 2001 Deville Northstar - rebuild - oil pressure in Past Cadillac Vehicle Discussion; I just recently rebuilt my caddy motor and fired it up and the indication light says I have low fuel ...
- 06-23-13 10:27 PM #1Cadillac Owners Member
- Join Date
- Jun 2013
2001 Deville Northstar - rebuild - oil pressure
I just recently rebuilt my caddy motor and fired it up and the indication light says I have low fuel pressure to stop motor. I have primed the system and still no pressure. When I was building the motor I put a new oil pump in, so I'm stuck and need some ideas anyone
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- 06-24-13 06:37 AM #2
Re: 2001 Cadillac Deville 4.6l Northstar
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Moved to the proper Deville forums.
Fuel pressure ??? Oil pressure - the oil pump is driven by friction between the harmonic balancer hub, the oil pump drive sleeve, and the crankshaft machined shoulder. There is a specific torque - degree sequence to get that sleeve properly clamped. Read your GM service manual again, lock the engine flywheel (flexplate) and perform the proper torque/degree procedure on the harmonic balancer bolt.
- 06-24-13 10:12 AM #3
Re: 2001 Deville Northstar - rebuild - oil pressure
I strongly suspect you did not torque the harmonic balancer properly. I forget the torque spec, but it is quite high.
- 06-24-13 10:55 AM #4Cadillac Owners Connoisseur
- Automobile(s): 03 STS
- Join Date
- Aug 2007
- mpls mn
Why did u rebuild motor