Question about 1994 Ford Econoline

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What are all the possibilities that would cause the loss of oil pressure

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Low oil level
oil pump going bad
worn out engine bearings or passages
incorrect viscosity of oil

to name a few

Posted on Jul 06, 2010

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Posted on Jan 02, 2017

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I have a 01dodge RAM 1500 and the oil gauge keeps going from 40 to 0 and the check gauges light keeps coming on but I checked the oil and it's fine, what could be the reason for this


1. You need to have an independent oil pressure gauge hooked up to the engine to check the oil pressures at various RPMs and to verify the 40 to zero drop. This will eliminate any issue with the pressure gauge or the sending unit.

2. The oil pressure variation can be caused by an intermittent blockage in the oil pick up or an intermittent sticking oil pressure relief valve. I would possibly suspect the latter if you are getting good pressure and it is intermittently dropping to zero and going back up again..
If you or previous owners have not maintained the engine with frequent oil changes you will get a sludge build up problem in the engine and this will be evident by just dropping the engine sump.

3. If you have had a check engine light warning then you need to have the vehicle scanned to see what fault codes have been generated by the computer. There will be some related to the intermittent loss of oil pressure but there may be others also..

4. You need to have the oil pressure problem checked out immediately. Running the engine when you constantly lose oil pressure intermittently will definitely cause engine damage due to a loss of both lubrication and oil cooling to critical components.

Apr 01, 2016 | Cars & Trucks

1 Answer

Engine oil light flashing


Flashing oil light indicates a loss of oil pressure. No oil pressure will cause the engine to seize up. Check the oil level, if full verify that the oil sending unit is connected correctly. Listen for unusual engine noise (Shut down immediately to avoid damage to the engine), connect an oil pressure gauge to the oil sending port (remove sending unit) and verify oil pressure. the issue could be a loose connection, broken connection or plugged sending unit, as well as loss of oil pressure.

Sep 01, 2015 | Cars & Trucks

1 Answer

Can oil pressure sender cause a major oil leak if sender is bad


Hi Jerell:
Short answer - YES
Fortunately, it is usually easy to find the source of oil leaks. clean it up, run it for a short time, look for the fresh oil leak.

Lots of older vehicles had a vinyl tube that went from the engine block to an oil pressure guage. A hole in the tube or a bad fitting connection would cause the loss of a large amount of oil.

Electronic senders could still be the source location for an oil leak if the internals had failed. Not common, but possible.

May 13, 2015 | Cars & Trucks

1 Answer

I have a 1995 olds aurora with a northstar. The oil level is fine but the computer says low oil pressure when at a stop light. Is this the oil sensor or oil pump?


Oil pressure is generally not related to oil level unless the oil level is low.
Oil pressure is created by a pump and as the engine parts wear over time, the oil passes through them easier causing oil pressure to drop.
It is also possible that the loss of pressure is caused by an oil pump that has worn, but don't get your hopes up.
If the vehicle has a lot of mileage, has been driven hard, has not had the oil changed regularly, this occurs.
It is sometimes possible to put additives in your car that are "thicker" than oil and this will give you some time to decide what to do.
Gary

Jul 21, 2011 | 1995 Oldsmobile Aurora

1 Answer

WARNING MESSAGE sTOP: OIL PRESSURE ...wHAT IS


Check your oil, it may be low if not the oil pressure needs checked. The sending switch could be bad or you have low oil pressure. If you have low oil pressure have it fixed ASAP. The loss of oil pressure can cause severe engine damage.

Sep 26, 2009 | 2007 Volkswagen Passat Sedan

1 Answer

Loss of oil pressure


Loss of oil pressure can be any of the following: defective oil gauge, defective oil gauge sending unit, defective oil pump, worn rod and main bearings, plugged oil pickup screen, insufficient oil in engine hole in oil pickup tube, etc. Many issues can cause low oil pressure. Take it to a mechanic for proper diagnosis.

Sep 24, 2009 | 2005 Dodge Ram 1500

1 Answer

Oil pressure goes low when engine is warm


metal expands when heated, you are losing pressure through a leak caused by the expanding metal. Its impossible to know where the pressure loss is.

Another possiblity is that the oil pressure sensor is failing at high tempurature. You could replace the sensor to see if that is the problem

Sep 13, 2009 | Chevrolet Blazer Cars & Trucks

1 Answer

Loud ticking noise


Ticking is generally associated with a valvetrain problem but may be caused by low oil level or pressure. Noise is in the upper half of the engine. Knocking is from low oil pressure and is caused by worn bearings causing pressure loss. Knocking is the worse of both conditions (means overhaul or engine replacement.) Ticking needs to be checked for it's cause...if cause is low oil pressure, remember...oil pumps don't cause low oil pressure, pressure will lost if bearings are worn or pump inlet screen is plugged with carbon.

Jul 18, 2009 | 1999 Jeep Cherokee

2 Answers

Main rod bearings


In order to do main bearings on any car it is strongly advisable to remove engine. In most cases leaving it in car cause problems with install that may result in complete engine failure.Depending on which bearing, it can be done but I've never seen one that didn't have problems afterwards. I'm not sure what you mean by "re-set itself" but at this point it may not matter. If referring to oil pressure light, it will go out when pressure loss is corrected, in your case loss from bearings.
This is not a small easy job. I know thats what you were hoping for and I'm sorry to be the one to tell you it is not.

Apr 24, 2009 | 1991 Lexus ES 250

3 Answers

Loss of oil pressure in a dodge 2500 with a V10 gas motor


Have your mechanic check the oil pressure with a pressure guage. A oil pressure sensor is the most possible cause, but please make sure of proper oil pressure to avoid engine damage.

Aug 02, 2008 | 1997 Dodge Ram 2500 Club Cab

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