no low pressure oil - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 04-11-2010, 03:09 AM Thread Starter
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no low pressure oil

yes if I let me truck sit over night it will loose lpo looking for any ideas thinking bad oring on pickup


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post #2 of 8 (permalink) Old 04-11-2010, 03:30 AM
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Re: no low pressure oil

The low pressure oil pump doesn't hold pressure once the engine is shut off. If should build pressure within seconds of turning the engine over however. If it isn't building pressure when cranking then yes either the pickup is leaking back to the pan or more likely your LPOP is gone south.

97 F-350 XLT CC DRW 4X4 PSD, 285/75-16 Custom bumpers, Gauges-boost/egt/trans, Swamps IDM, 3.5"dp- 4" exh., 3" Body lift, ES bushings/mounts, Built trans, billet conv, B&M pan, Hayden cooler, Adrenaline, stage 2's, IC, H2E, E-fuel
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post #3 of 8 (permalink) Old 04-11-2010, 08:01 PM
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Re: no low pressure oil

do you have a stock guage? my stocker doesnt move till the truck idles for a good 2-3 seconds.


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96 f250, ZF5,160cc,
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96 f350 plow truck
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post #4 of 8 (permalink) Old 04-11-2010, 08:08 PM
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Re: no low pressure oil

Mine gets pressure while cranking. I don't really trust the stock gauges and when things get better $$$ wise I will get an auto meter trio so I know whats up.

97 crew cab shorty-4x4 Lots of mods .
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post #5 of 8 (permalink) Old 04-11-2010, 08:13 PM Thread Starter
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Re: no low pressure oil

I know the truck is loosing lpo because it will start untill it runs out of hpo I can pull the lpo sender out and no oil while cranking

95 CC PSD DRW 4:11 4x4 3" dp 4" exhaust 238's 100% over IDM mod FASS fuel pump 17* hpop 38R turbo SD ic 3" intake manifolds and spider with a custom fuel system BTS converter suncoast overhaul kit [email protected]
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post #6 of 8 (permalink) Old 04-11-2010, 08:19 PM
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Re: no low pressure oil

Then you answered your own question. The LPOP is shot. Replace it and move on.

97 F-350 XLT CC DRW 4X4 PSD, 285/75-16 Custom bumpers, Gauges-boost/egt/trans, Swamps IDM, 3.5"dp- 4" exh., 3" Body lift, ES bushings/mounts, Built trans, billet conv, B&M pan, Hayden cooler, Adrenaline, stage 2's, IC, H2E, E-fuel
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post #7 of 8 (permalink) Old 04-12-2010, 12:25 AM
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Re: no low pressure oil

When you dig into that make sure the front cover is not scored. I have a early one I plan on putting up for sale soon if you need one.
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post #8 of 8 (permalink) Old 04-12-2010, 01:57 PM Thread Starter
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Re: no low pressure oil

thanks for the info thats what I was thinking I have the cab off now about to tair into it I am also going to mod my fuel system and install a sd turbo and intercooler while I have it apart

95 CC PSD DRW 4:11 4x4 3" dp 4" exhaust 238's 100% over IDM mod FASS fuel pump 17* hpop 38R turbo SD ic 3" intake manifolds and spider with a custom fuel system BTS converter suncoast overhaul kit [email protected]
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