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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.
first need to buy oil pressure sending unit 3/8 deep socket remove oil pressure sending unit you need teflon tap sealer for oil sending unit threads.okay to replace oil pressure sending unit.you need safe raise support vechicle locate oil pressure sending unit next to the oil filter.disconnect oil pressure sending unit wire connector then use oil pressure sending unit 3/8 socket remove the sending unit.then take new oil pressure sending unit use teflon tape white plumbers tape or use thread sealer apply to the oil pressure sending unit threads then install new oil pressure sending unit and reconnect electrical connector to sending unit.then crank engine check for oil leak if all is good lower vechicle back to ground wait several minutes check engine oil level.you good to roll.
THE ENGINE IS GETTING OIL AS LONG AS IT IS JUST YOUR SENDING UNIT. THE SENDING UNIT JUST SENDS OIL PRESSURE READINGS TO YOUR GAUGE OR IF YOU HAVE AN IDIOT LIGHT IT KEEPS IT OFF AS LONG AS YOU HAVE PRESSURE.
you are on the right track, the first thing would be the sending unit, thats the most common reason for this type of problem,the oil sending unit is located on the top rear of the engine , heres a diagram picture to help you this is of a 6.6 engine as there are 5 engines that come in the truck but all have the oil sensor in the same location, have a good day and hope this helps.
Oil pressure can be checked at the sending unit passage with an externally mounted mechanical oil pressure gauge. To get accurate results from the test, make sure you follow the manufacturer's recommendations and compare your findings to specifications. Testing the Oil Pressure Gauge
Test the gauge by grounding the wire that leads to the sending unit on the block.
When the wire is disconnected from the sending unit with the key switch on, the needle on the oil pressure gauge should be either all the way high or all the way low. Grounding the wire should make the needle move to the opposite side of the gauge from where it was before the wire was grounded. If the vehicle is equipped with an oil pressure light, touching the wire to ground and then removing the wire from ground should turn the light on and off.
If either happens, the gauge and wiring are good and the sending unit is at fault.
Testing Oil Pressure
Pressure can be tested by temporarily installing an oil pressure gauge in place of the sending unit. Before testing, look up the oil pressure specifications for your vehicle in the appropriate service manual.
Bring the engine up to operating temperature.
Now shut the engine off.
Locate the oil pressure sending unit; usually it is on the lower side of the engine block.
Disconnect the wire from the sending unit and use an open ended wrench to remove the sender. Using pliers can damage the unit.
An oil pressure sending unit is removed with a special socket. Courtesy of Chrysler Corporation.
Tighten the oil pressure test gauge into the hole in the block where the sender was removed.
Measuring oil pressure. Reprinted with permission.
Check the engine's oil level and fill, if required.
Be extremely careful when working near a running engine. Always wear safety goggles or glasses with side shields when working around moving machinery and be sure that your clothing is not loose.
Now turn the engine on and check the oil pressure on the gauge.
Watch as the engine warms to note any excessive drops due to temperature.
Make sure the engine speed is set to specifications for testing pressure.
If necessary, us a tachometer and adjust the engine idle speed.
Record the measured oil pressure, then turn off the engine.
Compare the test results with the manufacturer's specifications.
If the oil pressure is within specifications, this shows that the oil pressure sending unit may not be working correctly.
In many cases, replacing the oil sending unit will correct the problem.
After the test is complete, reinstall the oil pressure sending unit, start the engine, and confirm there are no leaks.
yes, the oil pressure switch and oil sending unit are the same just two ways of saying it, i will enclose a picture of the oil pressure switch, this switch is located on the driverside of the engine in the lower front part of the block. hope this is helpful.
per the Haynes manual for the 95-05 Dodge Stratus on the 2.0L & 2.4L DOHC 4 cyl engines, the oil pressure sending unit is located at the left end of the rear side of the block. On 2.4L SOHC 4 cyl engines, the sending unit is located at the left end of the rear side of the block. On 2.5L & 3.0L V6 engines, the sending unit is located on the oil filter housing, on the front side of the block. On 2.7L V6 engines, the sending unit is located at the left end of the rear side of the block. To access it, remove the heat shield.
You either have a malfunctioning oil pressure sending unit, possibly damaged by the oil change, or, low oil pressure. Replace the oil pressure sending unit, and if the lamp continues to glow, you may need some internal engine repairs.