no oil pressure at high rpms Reply #15 – February 01, 2010, 05:49:35 PM Quote from: BogusSVO;308833he may be pumping all the oil up on the heads, and the oil return holes are clogged with sludge and letting the oil pan run dry.... pop the VC off and se the oil returns clear ...Quote from: daminc;308849He does have a high volume pump that was put in last year.Might be a combination of both of these 2 things together with the mileage that truck has. Just my .02:burnout:I went back and re-read the original post. I'd pull the intake off as well and clean the oil drain back holes there also. Quote Selected
no oil pressure at high rpms Reply #16 – February 01, 2010, 08:00:37 PM Quote from: daminc;308849He does have a high volume pump that was put in last year.On Ford Modular motors, specs call for 6 quarts. You can run more than this without issue.......Guys run 6 1/2 even 7 in some cases for the very reasons cited, especially the 4v guys. Those motors like keeping oil up top and they have excellent flowback characteristics.....Make sure it's at the absolute full mark on the dipstick and buy a GOOD oil filter for it. I've tested some different ones personally. A certain brand makes the warm idle pressure 4 PSI lower on my Cougar....It's a brand we all dislike here anyway.... Quote Selected
no oil pressure at high rpms Reply #17 – February 01, 2010, 08:37:12 PM Quotean F-250 with a 5.0. with 250,000 miles.It's not a mod motor. It's just a run-of-the-mill 302 Quote Selected
no oil pressure at high rpms Reply #18 – February 01, 2010, 10:07:34 PM I was citing the mod motors as an example. Quote Selected
no oil pressure at high rpms Reply #19 – February 01, 2010, 10:28:55 PM QuoteA certain brand makes the warm idle pressure 4 PSI lower on my Cougar....It's a brand we all dislike here anyway....May I ask which brand you're talking about? Quote Selected
no oil pressure at high rpms Reply #20 – February 01, 2010, 10:49:20 PM FRAM huh???!!!Wouldn't put one on a mower. Quote Selected
no oil pressure at high rpms Reply #21 – February 02, 2010, 02:01:50 AM Correct answer stated above Quote Selected
no oil pressure at high rpms Reply #22 – February 02, 2010, 04:25:05 PM the only good thing about a fram filter is th "quick grip" so you can get it off your engine faster....I personally think Wix or NAPA Gold are the best common filter out on the market. Quote Selected
no oil pressure at high rpms Reply #23 – February 04, 2010, 11:54:16 PM Motorcraft FTW:D Quote Selected
no oil pressure at high rpms Reply #24 – February 05, 2010, 10:15:15 AM Quote from: BogusSVO;308833he may be pumping all the oil up on the heads, and the oil return holes are clogged with sludge and letting the oil pan run dry.... pop the VC off and se the oil returns clear ...better yet,,, dont risk sludge falling in places you dont want it....transition a shop vac to a piece of 1/4'' copper tubing.vac the oil return holes out.the 1/4'' tubing will go all the way to the crank or pan. Quote Selected
no oil pressure at high rpms Reply #25 – February 05, 2010, 03:28:41 PM 250,000 miles, I would think it may have issues. I'm sure at idle the pressure is not so good either. It's tired!! Quote Selected
no oil pressure at high rpms Reply #26 – February 05, 2010, 11:10:03 PM Quote from: Kitz Kat;309334250,000 miles, I would think it may have issues. I'm sure at idle the pressure is not so good either. It's tired!!It may be just that... I think we'll have some sort of clue or direction this weekend. Quote Selected
no oil pressure at high rpms Reply #27 – February 09, 2010, 08:05:36 PM Motorcraft filters are made by Purolater, aren't they?My dad has an '89 F-150 with the exact same problem. It's been parked for 4 years now, so I don't know the cause, but I'd suspect high miles have a lot to do with it. 5.0's ARE notorious for this, especially those particular years. And, there's a reason they say not to use a high-volume pump on a stock engine Hope ya get it nailed down painlessly :D Quote Selected
no oil pressure at high rpms Reply #28 – February 09, 2010, 08:23:22 PM Stock replacement pumps are more than sufficient for most street engines (do some research on Dick Landy's engines). Fram = FAILMotorcraft FTWHowever my old 5 Star International sales rep saved us a ton of $$$ on a Cat 930 that smoked an engine. The International Filters, FleetGuard offer a engine replacement guarantee if a engine goes tits due to an oil filter failure. I run a Fleetguard on my 03 F-250 5.4L and have noticed no difference in oil pressure. HMMM now that i think about it, the Motorcraft/Wix/Fleetguard filters all look the same....wonder who really makes em.... Quote Selected
no oil pressure at high rpms Reply #29 – February 09, 2010, 08:29:07 PM Fleetguard makes good filters. My buddy uses them on his diesel F-series. Quote Selected
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