Question about 2001 Oldsmobile Silhouette

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Low oil pressure light on, in OLds 2001 silohette

Low oil pressure light on, even though oil was just changed and at normal level.

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Oil pressure switch is short circuited.

Posted on Jul 30, 2009

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1 Answer

Cut off light comes on at 60mph oil pressure drop 38 39


If the oil pressure is otherwise normal except when you are running at higher speeds i suspect the relief valve on the oil pump is sticking in the open or partially open position at constant higher engine speeds.

You will need to have the oil pressure on the engine properly tested by a professional and the cause of the low oil pressure diagnosed. If you drive the car on low oil pressure you will cause very expensive internal engine damage many multiple times the cost of fixing the current problem.

Insufficient engine oil changes for the type of vehicle use (a practice which most owners follow because they usually do the absolute minimum thinking they will save money) causes sludge build up in the engine and these kinds of issues that you have now. Most owners are even too lazy to routinely and frequently check under bonnet fluid levels between services - engine oil level, coolant level, power steering fluid level etc.

Nov 23, 2015 | Cars & Trucks

1 Answer

Oil light on while running


Normally, the oil light indicates low oil pressure, usually due to lowe oil level. That being said, is you have a constant oil light with the engine running and you are not getting clacking noises from the valves, you may have a defective oil sender. Regardless, it is not worth destroying the engine to find out. You should immediately shut the engine and check the oil level. If it is very low, add oil and retest. If the fault persists, attach a mechanical oil pressure gauge to the engine. If the pressure is normal (usually 30-45 psi), then change the oil pressure sensor. If the oil pressure is less that 20 psi, you should investigate the oil sump and pump for problems.

Oct 04, 2015 | Cars & Trucks

2 Answers

High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

3 Answers

Oil light on after engine warm-up on idle


this means a mechanical gauge test is required to check actual pressure warm idling if low below 20 psi then the oil pressure pump relief is stuck open or engine bearing are worn

May 15, 2014 | 2005 Opel Astra 1.4

2 Answers

Oil warning light flashing mean?


Normally, if you get a oil warning light signal (flashing) could be a few things related to it. Number one, you are low on oil. Check your oil level and make sure it is at full level. Number two, is possibly oil filter is dirty, ( time for service,oil change) or problem with oil pump or oil pump pressure. BUT I would first start with checking oil level and then maybe a oil change.

Sep 15, 2011 | 2001 Lexus ES 300

2 Answers

What does it mean when the oil light flashes on my 2006 sebring?


Low oil pressure. Causes: Old oil, bad oil filter, low oil level or even a bad oil pump.

Aug 26, 2011 | 2006 Chrysler Sebring

1 Answer

Low coolant light,low oil and check engine light


Most likely it is the sensor, it is located on the radiator near the battery, it will stay off if you unplug it, Check the fuses and relays though just to make sure, oil pressure sensor possibly but again check fuses

Jun 07, 2010 | 1995 Chevrolet Monte Carlo

1 Answer

Past weekend check engine light comes on, engine sounds and feels fine. However the oil pressure is running slightly slow


Check that the oil level is full.If the oil has been in service for more than 4,000 miles, change it. Replace the oil pressure sending unit. If nothing changes, put a mechanical gauge on the engine and read actual oil pressure. Though "acceptable" low pressure is only 5lbs, I would never accept that as safe. Minimum pressure should be at least 20-25psi and normal running pressure between 35 to 45psi.
How low is "slightly low"?

Mar 22, 2010 | 1996 Jeep Grand Cherokee

1 Answer

Engine management light flashes.


that usually signafies and oil change,or it just may need a tune up try both ,dont forget to replace thecoil pack while yoru at it i had one and thats about normal also the eger pipe by the ehuast likes to break as well depending on what motor you have

Feb 19, 2009 | 2001 Ford Focus

1 Answer

Oil Light comes on VW passat


Start checking the oil level, if oil is low then the problem is a leak or weared rings.

If oil level is ok, check that the oil pump has enough pressure.

If oil pump is also fine, then scan the ECU (car computer) and replace the sensor if you do not find anything else being wrong.

Feb 18, 2009 | 2008 Volkswagen Passat Sedan

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