Question about GMC Sierra

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Oil filter blows off

Old truck - 95 4x4. sits more than it should. warming it up and oil pressure drops to zero and the filter is laying on the ground.

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Check that the correct oil filter is being used . there are different thread sizes in filters and if a metric thread is required but an sae thread is used the threads will not match exactly and the filter will come off under pressure. It will appear to screw on but if you are careful you will feel that the filter feels loose on the thread as you are doing it up.

Posted on Dec 27, 2013

6 Suggested Answers

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Posted on Jan 02, 2017

csmock132
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SOURCE: 360 motor losing oil pressure after15min of running

Try hooking up a mechanical gauge to make sure you have a problem.

Posted on Feb 27, 2009

  • 6982 Answers

SOURCE: 2002 jeep wrangler oil pressure gauge drops

When the gauge is at 0, is there any noise from the engine (tick, knock etc?) I would have someone put a mechanical gauge on there and read true pressure.Your driving pressure seems OK but if the low number is "real" something is wrong!

Posted on May 30, 2009

sscullys
  • 984 Answers

SOURCE: where is the oil pressure switch on a 2001 f150

Left ( driver's side ) front of the engine on the 5.4L engine.

This is shown to be at the end of the baffled area of the intake, the edge of the pleated area farthest from the airfilter ( looking at the engine, the left side of the pleated folds ).
When you locate this, look down the front of the engine.

The connector is a black 1 pin connector with a White w/ Red Stripe wire to it.

You might have to remove the factory air intake plastic housing to see it.

Posted on Nov 13, 2009

  • 4336 Answers

SOURCE: Dodge 2.7 I'm losing oil

The first stop is to measure the pressure with an external gauge. if the readings are the same, surgery is needed, I would look at the oil pressure relief valve for foreign particles.

It takes resistance to make pressure, and your decsription does not sound good. If the pressure is actually dropping, and you find no issues with the oil pump and pick up, you need to measure bearing clearances... Essentially, everywhere oil is pumped needs to be inspected...

Posted on Oct 31, 2010

  • 48 Answers

SOURCE: Oil pressure drops to zero at idle on 2002 GMC

You could have three possable problems that I can think of. 1) Your oil viscosity is too low and you need to change it to a higher level. A 5w/30 or 10w/30 oil may thin out too much when it warms up to normal temp and shows low on your gauge. 2) The preasure relief valve is partially open due to a small piece of debris caught under the seat. Unscrew the oil filter and look at the small disk that is near the threded part on the filter base. Theres a spring behind it to keep it closed so all the oil goes into the engine and not bypass back into the oil pan. Push up on it slightly with a small tip screw driver and see that it fully seats in the hole, put a new filter on, and try it. 3) If these two things don't improve the condition, get a socket for taking the oil preasure sender off and get a oil preasure gauge to test the actual oil preasure the engine is producing. You may have a weak pump in the engine. If the preasure is within good specs, I'd change the sender unit with a new one.
Let me know what happened-
Craig

Posted on Jan 20, 2011

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Jul 18, 2009 | 2002 Isuzu Rodeo

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