Question about 2008 Chevrolet Trailblazer

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Low oil pressure 5.3 lts engine

Engine oil pressure drops down to 10psi after engine runs for 30 mins

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Are you idling or is it doing 10 PSI driving it? If it has many miles on it it could be just getting worn out and that would be low oil pressure at idle when hot.

Posted on May 09, 2014

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Posted on Jan 02, 2017

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SOURCE: Low oil pressure in 1998 camaro ls1

First have your oil level checked and make sure that it is at the right level. If not that's your problem, if your level is good you may have a bad oil pressure switch. This can be checked by using a oil pressure guage. If switch is bad replace and solve the problem. However if your vehicle has alot of wear and tear on he engine and you were using 20w-50 oil and it was replaced with 5w-30 that oil may be too "light" for the vehicle and you would get a low oil pressure reading. Good Luck

Posted on Dec 15, 2008

  • 49 Answers

SOURCE: ticking noise and low oil pressure

DOES IT HAVE A LOT OF MILES ON IT OR MAY BE THE OIL PUMP IS IS GOING OUT? THERE IS A SPRING IN THE PUMP THAT IS A BYPASS FOR HOW HIGH PSI IT MAY HAVE BROKE THAT WILL GIVE YOU LOW PSI.

Posted on Jan 18, 2009

  • 1 Answer

SOURCE: Low Oil Pressure on 1992 Chevy 1500 Pickup Truck

1992 silverado pickup has a problem with the oil pressure Gage on the dash board fluctuate when i put break on or accelerate the gas 

Posted on Feb 14, 2009

  • 41 Answers

SOURCE: Low oil pressure on 2001 Suburban

your oil sensor comes on at less than ten psi, you may have internal engine damage how many miles on engine, any gum up inside engine, you can try to put on a high pressure high volume melling oil pump to try to help for the time being, but you may need to have it torn and repaired.

Posted on Aug 03, 2009

  • 95 Answers

SOURCE: 1991 chevy S10 blazer fluctuating oil pressure

I assume from the year it has high mileage. With mileage comes wear in these engine's bearings allowing oil pressure to drop because of the excess clearance between cam and bearings, also the crank and bearings. When the engine is hot and idling the oil is thinner and goes by the bearings quicker. If you have good oil pressure while driving, I'd leave it alone, maybe use a thicker oil or some lucas additive. My 89 does the same thing sometimes in the summer, but don't remember it doing it this summer. I use Mobil-1 and an AC Delco filter.

Posted on Oct 17, 2009

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Me again, my truck when i start it up in the morning oil pressure is good but the 15 min. ride to work pressure drops down to around 5-10, but i dont lose any power still runs strong


5-10 psi at idle with a warm to hot engine is not unusual with a well used engine but is low enough to ring alarm bells if that is the reading at speed. The manufacturer will issue specifications for an oil pressure test but as a general rule the test would be made at around 2000 rpm and the oil pressure should be around the oil pressure relief valve lift-off pressure which commonly is about 40-45 psi but could be higher or slightly lower.

Oil pressure has little relationship with engine power as long as it still has some...

If the oil pressure is low the cause might be simple or it might be complex and expensive, but whichever it turns out to be, rectification should not be delayed even for a day...

Jan 02, 2017 | Cars & Trucks

1 Answer

Oil pressure dropped to 0 and engine died getting offf interstate after doing 70mph took 30 min to get trailblazer to start


If the oil pressure switch fails ie send a low signal to the ECM it will not allow the engine to run.

Apr 04, 2014 | 1998 Buick LeSabre

1 Answer

Subaru impreza


Pull the oil dipstick and see what your oil level is at. If there is no oil on the stick then your oil level is low. Add a quart of oil and check it again. (give the oil at least 30 seconds after you finish pouring it to get down to the oil pan to register on the dipstick first). Then only add more if it still does not register on the stick. If the oil level is fine, then you may have a bad oil pressure sensor.

Feb 18, 2014 | Cars & Trucks

1 Answer

The oil light came on whild driving my 1999 Lexus RX300 and the engine shut down. After pulling to the side of the road, I turned the igintion switch off and then on and the car started and I drove i


The oil warning light is telling you the oil pressure has dropped below 10psi which does not always mean the oil level is low.
When the oil pressure drops, the power for the fuel pump is cut for safety reasons. You would not want the fuel pump to keep going if you were in a wreck and the engine stopped but the key switch was still on.
It could be a faulty sensor, or you really could be loosing oil pressure.
If the light comes on again, you would need to have the pressure checked with a mechanical gauge.

Feb 11, 2013 | Cars & Trucks

1 Answer

Why does the oil pressure light comes on


The oil pressure warning light comes on to warn the driver the oil pressure in the engine has dropped below 10psi.
The reason could be the engine is low on oil, or there is a problem with the oil pump or other internal engine component.
The oil pressure switch could also be faulty.

Jan 27, 2013 | 2004 Chrysler PT Cruiser

1 Answer

1996 jeep grand cherokee oil pressure gauge flutters car wont run


If the oil pressure is not above 5 or 10psi, the fuel pump will not get power. The engine should start and die.
The pressure sending unit may be faulty, or the engine oil pressure may be very low.

Jul 21, 2012 | 1999 Jeep Grand Cherokee

1 Answer

I just purchased a used 2001 Crown Vic lx. today when i cranked it for the first time the oil light came on for about five minutes. i just put a quart in yesteday. after five minutes the light went off....


if it is just oil level sensor not too worry, other wise it sounds like you have low oil pressure most oil pressure sensors turn on lght below about 5-7 psi. its odd to me that light took so long to go out and are you running proper wt oil 10-30 say for your climate? most of the time engines warm-up oil thins a bit and so at low engine speeds, oil light comes on when engine is warm. one other thought was that you say it was running for 5 mins before oil light went out-did it sound bad? ticking or knocking like it really did not have oil pressure? or possibly sensor/gauge problem.

Jan 31, 2011 | Ford Crown Victoria Cars & Trucks

2 Answers

Have a 96 chevy cavalier. replaced IAC,fuel pump assembly, fuel filter, tested and adjusted TPS but still haveing problem with car shutting off after about 30 mins of driving. Also once "warms" up during...


If your oil pressure gets to low it can turn off the fuel pump. This may also have saved your engine. The ECM turns on the fuel thru the fuel pump relay for about 5 seconds. When engine is running oil pressure sender supplies the voltage to the pump. When engine shuts off check oil pressure and voltage to fuel pump.

Jun 19, 2010 | 1996 Chevrolet Cavalier

2 Answers

Dodge caravan '98, oil light on, plenty of oil


If the engine is not making any knocking type noises, check the oil pressure sending unit. If it is leaking oil then it needs to be replaced along with removing the rubber plug from the connector and cleaning the terminals. If the oil light still comes on then the oil pressure is definately low and could cause engine failure.

Jul 03, 2009 | 1999 Plymouth Grand Voyager

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