89 mustang 5.0 oil pump not building pressure

dkliner · 02-21-2009, 07:26 PM

Just replaced the oil pump and the shaft going to the pump. The shaft was spun. Now it won't build oil pressure. Please give me suggestions.

goodyear1984 · 03-17-2009, 10:59 PM

well if you put the pump and drive in right and u have no pressure u have worn bearings..usally if thats the problem, there will be pressure when the engine is cold and whe it gets warm the pressure will drop

USMC302 · 04-16-2009, 10:48 AM

Are you trying manually or with the dist doing the work?

02-21-2009, 07:26 PM	#1
dkliner Registered Member Join Date: Feb 2009 Posts: 3	89 mustang 5.0 oil pump not building pressure Just replaced the oil pump and the shaft going to the pump. The shaft was spun. Now it won't build oil pressure. Please give me suggestions.

03-17-2009, 10:59 PM	#2
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: 89 mustang 5.0 oil pump not building pressure well if you put the pump and drive in right and u have no pressure u have worn bearings..usally if thats the problem, there will be pressure when the engine is cold and whe it gets warm the pressure will drop __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

04-16-2009, 10:48 AM	#3
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: 89 mustang 5.0 oil pump not building pressure Are you trying manually or with the dist doing the work? __________________

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