When the vehicle gets to normal operating temp, if you shift to reverse or any other gear the oil pressure gage drops to 0 and the idiot light comes on. this last for a few seconds and then goes to normal. It can continue to fluctuate or not. The engine doesn't seem to be losing any pressure it idles fine. theengine was replaced last year and has less than 10000 miles on it.
Usually on idle (warm engine) this is OK.
SOURCE: 1998 dodge 1500 wont shift
first of all standard or auto i am guessing its standed standard under drivers side hood near master cylinder there is a small clutch reservoir if there isnt enough fluid it wont extend the throw out bearing far enough for a shift because the clutch pedal is hitting the floor not enough fluid to extend the slave cylinder to drive the fork second faulty slave cylinder or throw out bearing as far as the light blown dash bulb or somone snipped the wire or took the bulb out
SOURCE: oil sending unit
I have heard sludge buildup can be an issue with Dodge engines in Durangos. Make sure sludge is not blocking oil flow and reducing pressure.
SOURCE: Where is the oil sending unit on a 2002 dodge ram 1500 4.7 L?
it normally is located near the oil filter it looks like a little plug with a wire on it
SOURCE: 1996 DODGE RAM 1500 LOSES OIL PRESSURE AFTER
There are several reasons. The oil viscosity can make a difference and if the oil is contaminated with fuel. Wear in the oil pump and all of your bearings starting with the main crankshaft bearings and the connecting rod bearings. The wrong or bad oil filter.
When cold oil flows it plugs leaking bearings and oil gears. When the oil warms, the wear in the bearings (gaps) can't hold back the thin oil and the pressure drops. If the bearings are replaced before the crank and cam are damaged, the pressure will be maintained.
SOURCE: need to replace oil pressure sensor/or sending
In my experience with neon's the sending unit is most likely not the problem. I feel that you will find that the oil pressure is actually low and that the oil pump is going out. If you change the sending unit and it doesn't change then you will know for sure. The sending unit is located on the side of the block near the oil filter. It has one wire and simply unscrews and the new one screws back in and re-attach the wire. Hope this helps. Good luck.
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