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Author Topic:   Oil pump problem!
Jorge Garcia
Journeyman

Posts: 12
From: Monterrey, Nuevo Leon, Mexico
Registered: May 2004

posted 07-12-2004 10:11 AM     Click Here to See the Profile for Jorge Garcia     Edit/Delete Message   Reply w/Quote
I have a 94 cougar with the 4.6L engine.
When is working at idle speed or below 2500rpm the pressure gauge is o.k. but above that value the oil pressure begins to go down until the red check gauges goes on.

Does anybody knows what is happening?

Thanks.
Jorge Garcia

------------------
Mustang 70 Sportsroof
351C-4V Mod. Auto Trans.
9" 3.5 Track lock Dif.
Disc brakes, A/C, P.S., Edelbrock Performer intake, 4150 600cfm Holley

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SteveLaRiviere
Administrator

Posts: 43790
From: Saco, Maine
Registered: May 99

posted 07-12-2004 07:43 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Sounds like a drainback problem. I'd pull the valvecovers and see if the drainback holes in the heads are plugged.

------------------
'70 Mustang Mach 1 351C 4V/FMX/3.25 Open
'70 Mustang Convertible 250 I6/3 speed/2.79 Open
'72 Mustang Sprint Hardtop 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

[This message has been edited by SteveLaRiviere (edited 07-12-2004).]

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Jorge Garcia
Journeyman

Posts: 12
From: Monterrey, Nuevo Leon, Mexico
Registered: May 2004

posted 07-13-2004 02:09 PM     Click Here to See the Profile for Jorge Garcia     Edit/Delete Message   Reply w/Quote
Thanks.
Never tought about it.
I'll check it this weekend.

Jorge

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