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2000 international 12.7 Detroit low oil pressure light on engine warning light on showing 60 pounds of oil pressure engine running or not gauge does not fluctuate with engine idling at normal temperature all lights off this morning when cranked truck but the oil pressure gauge was still on 60 cut the truck off 10 minutes later crank it back up warning light and oil pressure light back on.

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Posted on Jan 02, 2017

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SOURCE: low oil pressure 93 GMC P/U w/350 motor w/205,000 miles gauge

While engine is running, open the cover where you add oil to engine and see if you see a good flow of oil, if good flow, could be as easy as replacing oil sending sensor. got to realize that if poor maintenance history your engine may not be building enough pressure at iddle to move your hydraulic operated valves, only when you rev it up it will pump enough to run smooth. if running engine too long, you may cause more damage to other engine components such as crankshaft and cam shaft bearings. if you can spare a few bucks, have a good mechanic check your oil pressure with a mechanical gauge. another cheap option is to replace oil pump. last resort if you love your truck as much as we do,replace engine or rebuild it. At 205,000 this is a normal symptom, other than timing chain problems, most engines don't make it that far. hope this helps!

Posted on Mar 01, 2010

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Where is the oil sending unit on a 1996 mercury cougar xr7 ? Its cause my oil pressure gauge is bouncing up and down...i dont know why...can anybody please help me thank you so much


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The low oil pressure warning lamp will illuminate anytime the ignition switch is turned to the ON position without the engine running. When the engine is running, the light also illuminates if the engine oil pressure drops below a safe oil pressure level. To test the system, perform the following:
If the oil pressure light does not work, perform the following:
  1. Turn the ignition switch to the ON position.
  2. If the lamp does not light, check for a broken or disconnected wire around the engine and oil pressure sending unit switch.
  3. If the wire at the connector checks out OK, pull the connector loose from the switch and, with a jumper wire, ground the connector to the engine.
  4. With the ignition switch turned to the ON position, check the warning lamp. If the lamp lights, make sure the oil pressure switch is properly grounded in the cylinder block, and if so replace the oil pressure switch. If the lamp still fails to light, check for a burned out lamp or disconnected socket in the instrument cluster.
To diagnose an oil pressure light that stays on, perform the following:
  1. Check the engine oil level and top off as necessary. If the engine was 2 or more quarts low on oil, test start the engine after topping off the oil level and recheck the oil pressure light operation. If the light stays on, stop the engine immediately and go to the next step.
  2. Disconnect the wire at the sending unit, then turn the ignition switch to theON position. If the light remains on, check the wire from the sending unit to the gauge for being shorted to ground and repair as necessary. If the light goes out, turn the ignition switch OFF and go to the next step.
  3. Replace the oil pressure sending switch with a known good switch.
  4. Start the engine and check the oil pressure light operation. If the light stays on with the engine running, stop the engine immediately to avoid severe engine damage until the cause of the problem can be determined.

WARNING
If the oil pressure light remains on while the engine is started, stop the engine immediately. Do not operate the engine until the cause of the problem can be determined. Operating an engine with low oil pressure will cause severe internal damage.

Possible causes for an oil pressure light to stay on are:


Pinched or grounded sensor wireDefective oil pressure sending unitRestricted or severely leaking oil filterExcessive internal engine bearing clearance.Insufficient or severely contaminated engine oilBlocked oil pump pickup screen or severely worn oil pump

Mar 31, 2016 | Mercury Cars & Trucks

3 Answers

Why does the oil warning light come on when the oil level is full oa a 1987 dodge ram 50 truck


Your oil light is not a level indicator, it is a pressure indicator. If your oil light is on with the engine running, it either means that you have a bad pressure sender or you have no oil pressure. I suggest installing a mechanical pressure gauge to verify if you do or do not have oil pressure. If with the mechanical gauge you do prove to have oil pressure then simply change your oil sending unit. But if you do not have oil pressure with the mechanical gauge, then you must drop the oil pan and find out why you have no pressure.

Jul 13, 2015 | Dodge Cars & Trucks

2 Answers

How can i fix the oil pump


see this tips and fix it. God bless you
The oil pump supplies oil to lubricate your engine. If the oil pump is worn or is not turning, the engine will suffer a loss of oil pressure, which may result in engine damage or engine failure.
The first sign of trouble may be a low oil pressure warning light, a drop in the normal reading on you oil pressure gauge (if your car has one), or the appearance of ticking or clattering sounds from your engine.
As a rule, most engines only need about 10 PSI of oil pressure for every 1,000 RPM of engine speed. Oil pressure will read higher than normal when a cold engine is first started because the oil is thick. Oil pressure will gradually drop as the engine warms up and the oil thins out. So normal oil pressure on a warm engine cruising down the highway is typically 30 PSI up to 45 PSI.
SYMPTOMS OF OIL PUMP TROUBLE
The first thing you should do if any of these symptoms occur is to stop your car, turn off the engine, let it sit for a few minutes, then check the oil level on the dipstick. If the oil level is at or below the ADD line, add a quart of oil to bring the level back up to the full mark. Add as much oil as is needed to raise the level to the full mark. Then restart the engine. If the warning light remains on, or the oil pressure reading does not climb back up to its normal range, or the engine noise does not go away, you may have a bad oil pump.
The other possibilities include a bad oil pressure sending unit, or a problem with the oil pressure warning light circuit or oil pressure gauge.
OIL PRESSURE SENDING UNIT
If the engine is NOT making any unusual noises and seems to be running normally, and the oil level on the dipstick is FULL, but you are still getting a low oil pressure warning light or low gauge reading, the fault could be a bad oil pressure sending unit.
The oil pressure sending unit is mounted on the engine block. On some applications, there is a spring-loaded pressure-sensitive diaphragm with a switch inside the sending unit. This switch completes the circuit to the low oil pressure warning light if oil pressure drops below a certain threshold. The unit may stop working if the diaphragm inside fails, if the switch is stuck, if the small hole that allows oil to enter the sending unit becomes plugged, if there is a loose, corroded or broken wiring connector at the sending unit, or there is a fault in the wiring circuit between the sending unit and warming light.
On vehicles that have an oil pressure gauge (electronic, not mechanical), the oil pressure sending unit has a small rheostat inside that sends a variable voltage signal to the oil pressure gauge when the diaphragm moves. A worn spot on the rheostat or any of the other problems just described for the simple pressure-type oil pressure switches can cause a problem.
FORD'S FAKE OIL PRESSURE GAUGE
On many Ford vehicles that were built from 1980 through the 1990s, the oil pressure sending unit has two switches, a low pressure and a high pressure. These vehicles also have an oil pressure gauge, but the reading on the gauge is not a true indication of real oil pressure. As long as the pressure to the sending unit is between high and low, the gauge will read normal. If oil pressure drops and trips the low pressure switch, the dash gauge will now read low. Or, if oil pressure goes up and trips the high switch inside the sending unit, the dash gauge will read high. Consequently, don't rely on the oil pressure gauge for an accurate reading in these vehicles. It is only a gross indication if the oil pressure is low, normal or high.
OIL GAUGE PROBLEMS
If the engine is NOT making any unusual noises and seems to be running normally, the oil level on the dipstick is FULL, and you have replaced the oil pressure sending unit but are still getting a low oil pressure reading on the dash gauge, the fault could be in the wiring circuit between the sending unit and gauge, or the gauge itself might be bad.
Check the wiring connections on both ends as well as wiring continuity between the sending unit and gauge. If no wiring faults are found, hook up a pressure gauge directly to the oil pressure port on the engine and check oil pressure with the engine running. If the engine-mounted gauge shows normal oil pressure but the dash gauge is reading low, the problem is a bad dash gauge.
On the other hand, if the engine-mounted pressure gauge reads low and you have done all of the above, chances are the oil pump is worn, or it is not picking up enough oil because of a restriction or blockage in the pickup screen in the bottom of the crankcase.
OIL PUMP PICKUP PROBLEMS
The pickup tube has a screen on the end to prevent large chunks of anything bad that ends up in the crankcase from being sucked into the pump. But we are talking BIG chunks of debris, not normal wear particles or carbon or dust or other microscopic-sized abrasive particles that can cause pump wear over time.

Sep 28, 2012 | 1996 Toyota Tercel

2 Answers

Oil lights stays on


If the engine is not making any noise then it is likely not a real oil pressure problem. Just to make sure have the pressure checked by a shop with a mechanical test gauge and if found to be inspect replace the sending unit and that should in most cases cure the problem. I assume this is a pressure indicator.

Sep 17, 2012 | 2005 Dodge SRT-4

1 Answer

Operating oil pressure for 14.0l detroit dieselseries 60


If the engine is at normal operating temperature 25 pounds is fine at idle. Also have you tested the oil pressure with a mechanical gauge, if not you should do so.

Jun 10, 2012 | Cars & Trucks

2 Answers

There is an engine light on, it looks like an oil can, does that mean there is no oil in the car?


First, do not keep driving if the oil warning light is on or your oil pressure gauge has dropped. Stop the engine, let it sit for a few minutes, then check the oil level.
Don't ignore it. An oil pressure warning light (or low gauge reading) means one of two things: either your engine has dangerously low oil pressure, or the oil pressure sending unit that triggers the warning light (or operates your gauge) has failed. I hope this helps.

Aug 03, 2011 | 2000 Mercury Cougar

1 Answer

2000 Ford F-150. The oil temp warning light came on and the oil pressure gauge dropped to zero. While accelerating, the pressure gauge goes back to normal and the warning light goes out. No drivability...


Make sure the oil level is correct. If the engine bearings are getting worn, the oil pump is worn or it's screen plugged, that can cause low-RPM weak oil pressure. Try running with 'high mileage' oil at your next oil change and always replace the filter. At some point, you may need to consider overhauling or replacing the engine. Good luck!

Jun 06, 2010 | 2000 Ford F150 Flareside SuperCab

2 Answers

Oil pressure gauge shows 60-80


the oil sending unit that screws in the block beside the oil filter may be faulty,
the worst thing would be the oil pump its self the regulator valve on it

Jan 26, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Oil pressure gauge


Low oil pressure is generally caused by internal engine bearing wear, not a "bad" oil pump... Pumps become "bad" when debris from a failed component gets into it, causing damage. (exception being pressure regulator spring/plunger assembly becoming clogged with gunk in engines that do not get proper maintenance; likely not your case)
Were there any tapping noises coming from engine when pressure was low? If not, The most common problem is the pressure sending unit, sending bad info to the warning light. If passage going to it or internal passage is gunked up, this problem usually disappears when oil is changed. sometimes the sender just goes bad, in which case, change it.
To get a proper diagnosis on your problem, have someone put a mechanical oil pressure gauge on it. This will read the actual oil pressure and will tell you a lot about the condition of your engine!
I have never seen a valve job that corrected any oil pressure problem. I mistrust anyone who would even think that!!!
Mlinimum low pressure at idle is 15 psi Max is about 60psi running (higher can explode an oil filter) A reading of 15psi indicates the beginning of a problem. although considered "safe" it is not good.

Jan 03, 2009 | 2000 Jeep Grand Cherokee

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