Low Oil Pressure - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 01-15-2007, 06:02 PM Thread Starter
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Low Oil Pressure

All,

Anyone had an issue with low oil pressure at idle with their 6.0L??? If so, what was the culprit?? Thanks!!

Ken
99.5 7.3L PSD 4x4
GTP38R BB TURBO
Casserly 250cc Hybrid injectors
BTS Trans W/ 6.0 Trans cooler
Live Tuned by Jody
TYMAR Intake/Coolant Filter
463hp and 912 tq 6 Feb 10
491hp 944tq 28 Aug 10
Future mods-- AirDog/ITP Reg Ret. Fuel sys. w/fuel bowl del, Terminator Big Oil,
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post #2 of 9 (permalink) Old 01-15-2007, 06:43 PM
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I *think* you have what is referred to as an "Idiot Gauge". Meaning that the "gauge" either reads above about 7PSI (normal) or Zero, and is NOT a true gauge that varies with changing pressure.

The "gauge" is activated by a pressure SWITCH (not sender), Ford has been doing this for 20+years on most every model.

Honestly, I am not 100% sure about the late model PSDs, but I know the earlier ones were this way (with a fake gauge).

'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
I Support: Trailer brakes an every axle over the towing vehicle's GVW; CDLs for RVers; Safety inspections for ALL vehicles and 6 axle trucks (97K GVW proposal).

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post #3 of 9 (permalink) Old 01-15-2007, 07:04 PM
 
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you need to conferm the oil pressure first with a good gauge. it may just be a bad sensor, if the pressure is still low the low oil pump gears might be scored or wornout.
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post #4 of 9 (permalink) Old 01-15-2007, 07:08 PM
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Or the regulator is sticking. The regulator is EXTERNALLY serviceable.

There is an oil pressure test fitting below the intake just above the waterpump pulley.

'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
I Support: Trailer brakes an every axle over the towing vehicle's GVW; CDLs for RVers; Safety inspections for ALL vehicles and 6 axle trucks (97K GVW proposal).

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote - Benjamin Franklin

I vote for LIBERTY!
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post #5 of 9 (permalink) Old 01-15-2007, 09:19 PM Thread Starter
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Cool, thanks for your replies fellas! The oil pressure seems to come up fine by the "gauge" once the truck accelerates

Ken
99.5 7.3L PSD 4x4
GTP38R BB TURBO
Casserly 250cc Hybrid injectors
BTS Trans W/ 6.0 Trans cooler
Live Tuned by Jody
TYMAR Intake/Coolant Filter
463hp and 912 tq 6 Feb 10
491hp 944tq 28 Aug 10
Future mods-- AirDog/ITP Reg Ret. Fuel sys. w/fuel bowl del, Terminator Big Oil,
PNWFDE#2
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post #6 of 9 (permalink) Old 01-16-2007, 03:26 AM
 
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john his truck is a 7.3 not a 6.0 so he wouldnt have the test fitting.
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post #7 of 9 (permalink) Old 01-16-2007, 03:30 AM
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Quote:
Originally Posted by diesel71
john his truck is a 7.3 not a 6.0 so he wouldnt have the test fitting.
Good point, I moved it the 7.3 Forum so wouldn't confusing anyone else...like myself
post #8 of 9 (permalink) Old 01-16-2007, 03:52 AM
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I saw the "99 Ford F250" part, but he asked about oil pressure on the 6.0L...

Quote:
Anyone had an issue with low oil pressure at idle with their 6.0L??? If so, what was the culprit?? Thanks!!
This confuses me.

'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
I Support: Trailer brakes an every axle over the towing vehicle's GVW; CDLs for RVers; Safety inspections for ALL vehicles and 6 axle trucks (97K GVW proposal).

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote - Benjamin Franklin

I vote for LIBERTY!
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post #9 of 9 (permalink) Old 01-16-2007, 12:15 PM Thread Starter
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Yes, my truck is a 7.3L, but the truck i am taling about is a 6.0L. I am currently deployed in Kyrgyzstan and we have an 04 6.0L that has low oil pressure readings on its "guage" at idle. So, i WAS in the right forum.

Ken
99.5 7.3L PSD 4x4
GTP38R BB TURBO
Casserly 250cc Hybrid injectors
BTS Trans W/ 6.0 Trans cooler
Live Tuned by Jody
TYMAR Intake/Coolant Filter
463hp and 912 tq 6 Feb 10
491hp 944tq 28 Aug 10
Future mods-- AirDog/ITP Reg Ret. Fuel sys. w/fuel bowl del, Terminator Big Oil,
PNWFDE#2
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