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Old 05-24-2012, 01:13 PM   #1 (permalink)
justinsturg
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Increase in oil pressure

What would cause an increase in oil pressure? Normal pressure in my rig is about 40-45 under load and when cold, and about 25 at idle when hot. Today it's about 60 under load and 45 at idle when hot. I did just change the ops, so I think it's related, but I've changed it before without a change in pressure (reading) like this. Does the ops even control the dash gauge. I do have fuel pressure, so I know it's at least partially working.

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1995 K2500 6.5L TD Suburban, "F" VIN, 4.10 gears, 283K miles, K47 filter box, Rotella T6 synthetic oil, Oil cooler and stainless lines from Lubrication Specialist (my wife thinks that sounds dirty ), HO water pump w/ dual thermostats from Kennedy, 20" 9 blade steel fan, Kennedy Special Calibration fan clutch, Diamond Eye 4" exhaust, Warpspeed 2.5" crossover, Relocate Gray PMD (#9 resistor) to front bumber, ISSPRO Boost, EGT, and trans temp gauges, ATA hanging intercooler, Peninsular air intake, Kennedy TD-Max performance chip, Feed the Beast mod with raised FFM, TCC Lockup Mod w LED indicator
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Old 05-24-2012, 01:14 PM   #2 (permalink)
Big Bertha
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Thats what mine did when my oil pump went out

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1996 K3500 Dually (f code)
-GEP motor with ARP head studs
-HX40 compressor wheel,HX35 CHRA 14cm2 with a peninsular intake
-Diamond eye exhaust
-All new accessories at 204,00
--4An fuel lines from tank to IP
-Pre and post LP filters, Walbro FRC 10
-Pillar gauges, battery mod, upgraded GP wires
-Braided oil cooler lines, PMD in bumper
-New IP
-S&B CAI,20" 9 blade fan
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Old 05-24-2012, 02:45 PM   #3 (permalink)
racer55
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The OPS does control the gauge,new switches often change the gauge reading-tough part is to tell if the old switch or new one is correct.

I would take a reading with a mechanical oil pressure gauge to verify what oil pressure you have.

Gauges can change readings from high resistance circuits also like the grounds on the intake.
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Old 05-24-2012, 04:26 PM   #4 (permalink)
justinsturg
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To use a mechanical gauge to check pressure, would i need to pull the ops and tap in there, or is there somewhere else to connect a mechanical gauge?
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1995 K2500 6.5L TD Suburban, "F" VIN, 4.10 gears, 283K miles, K47 filter box, Rotella T6 synthetic oil, Oil cooler and stainless lines from Lubrication Specialist (my wife thinks that sounds dirty ), HO water pump w/ dual thermostats from Kennedy, 20" 9 blade steel fan, Kennedy Special Calibration fan clutch, Diamond Eye 4" exhaust, Warpspeed 2.5" crossover, Relocate Gray PMD (#9 resistor) to front bumber, ISSPRO Boost, EGT, and trans temp gauges, ATA hanging intercooler, Peninsular air intake, Kennedy TD-Max performance chip, Feed the Beast mod with raised FFM, TCC Lockup Mod w LED indicator
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Old 05-24-2012, 04:53 PM   #5 (permalink)
Tommygunner
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Oil filter could be bad/clogged and bypassing. What kind of filter?
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Old 05-24-2012, 04:56 PM   #6 (permalink)
justinsturg
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Baldwin filter. New less than 500 miles ago
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1995 K2500 6.5L TD Suburban, "F" VIN, 4.10 gears, 283K miles, K47 filter box, Rotella T6 synthetic oil, Oil cooler and stainless lines from Lubrication Specialist (my wife thinks that sounds dirty ), HO water pump w/ dual thermostats from Kennedy, 20" 9 blade steel fan, Kennedy Special Calibration fan clutch, Diamond Eye 4" exhaust, Warpspeed 2.5" crossover, Relocate Gray PMD (#9 resistor) to front bumber, ISSPRO Boost, EGT, and trans temp gauges, ATA hanging intercooler, Peninsular air intake, Kennedy TD-Max performance chip, Feed the Beast mod with raised FFM, TCC Lockup Mod w LED indicator
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Old 05-24-2012, 05:26 PM   #7 (permalink)
racer55
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You could go off the OPS location or Tee into where the turbo gets fed might be simpler at the frt of the block.
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Old 05-24-2012, 05:47 PM   #8 (permalink)
Big Bertha
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There is also a check valve in the filter adapter of the 4x4 ( if you have 4 wheel) not sure about the 2 wheel, when mine was high I did check the pressure and was getting 104psi at idle and blowing off the filter, that check valve was a couple of dollars, a place to check.
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Derek-
1996 K3500 Dually (f code)
-GEP motor with ARP head studs
-HX40 compressor wheel,HX35 CHRA 14cm2 with a peninsular intake
-Diamond eye exhaust
-All new accessories at 204,00
--4An fuel lines from tank to IP
-Pre and post LP filters, Walbro FRC 10
-Pillar gauges, battery mod, upgraded GP wires
-Braided oil cooler lines, PMD in bumper
-New IP
-S&B CAI,20" 9 blade fan
-223,000 miles
.
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Old 05-24-2012, 06:08 PM   #9 (permalink)
JMJNet
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That is what mine shows. I suspect the old OPS was bad. The new one is correct.
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