Low oil pressure after vehicle is hot, but no noises.


Asked by Jul 14, 2015 at 03:12 PM about the 2002 Dodge Durango SLT 4WD

Question type: Maintenance & Repair

I have just purchased a 2002 Dodge Durango.  When we purchased all seemed to be ok.  Until we got it home.  Of course the dealer told us they had gone all through the vehicle and it was in great condition.  The deal started the vehicle right away so we didn't check the oil.  On way home noticed once truck was warm from trip the low pressure seemed a little low so the next morning I checked the oil it was Black and almost 2 quarts low.  Took it in and had an oil change.  But oil pressure is still doing the same thing.  The manual states that anywhere in the range is normal oil pressure, but I do not understand why it starts at 3/4 of range and once hot it drops to 1/4 range.  I have no noises, she runs very quiet. Not sure where to start to make sure it is not something that is going to cost me major down the road.  Anyone have any advice. It would be greatly appreciated.

5 Answers


You should have a oil pressure test done to make sure but since not tapping may just be a bad sensor that screws into the engine block that goes the the oil pressure gauge.


What you're describing sounds pretty normal to me. Oil pressures are always higher when the engine is cold because the oil is thicker. When the engine and the oil warm up the oil thins out some so the pressure drops some. For example, my '03 S-10 pick up truck starts cold with the oil pressure around 60 PSI (sometimes 80 PSI in the bitter cold winter) which is about 3/4 on the gauge. Once warmed up it stays around 30 PSI which is about 1/4 on the gauge. So I think you're ok. HTH. -Jim


BTW those pressure figures are at idle speed. -Jim


Well last night on way home it dropped to the line right at the edge of low and it didn't leave there most of the way home. It has proper oil level. After it had cooled I started it again and now it starts at only half way on gauge instead of at 3/4. It is getting worse, but it still hasn't dropped low enough to have any bells or light for warning of low oil pressure. I have been tol oil pressure sensor, oil pump, leak which it is not loosing any oil, and oil screen sludge or wore internal parts. How can I find out for sure which is the actual cause. I know the sensor can be tested with a pressure test and the screen, the pan can be dropped, but how do I know if it is the oil pump or wore out internal parts without tearing the whole motor down?

1 out of 1 people think this is helpful.

For testing purposes you can hook up a mechanical oil pressure gauge. That'll tell you if the gauge on the dash is accurate. If it's not then I'd suspect the sending unit is bad or the gauge itself is bad. However if you find out the dash gauge is accurate and you have high mileage you can suspect worn crankshaft bearings, worn oil pump, sludge, or a worn pressure relief valve. HTH. -Jim

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Durango in your area?

CarGurus has 22,713 nationwide Durango listings starting at $995.


Search Dodge Durango Questions

Dodge Durango Experts

#1 Sigurður Guðmundsson
Sigurður Guðmundsson
Reputation 2,290
#2 Breanskis
Reputation 1,320
#3 tenspeed
Reputation 680
View All

Related Models For Sale

Used Jeep Grand Cherokee"
1,225 Great Deals out of 74,255 listings starting at $1,500
Used Ford Explorer"
1,380 Great Deals out of 71,748 listings starting at $300
Used Chevrolet Tahoe"
1,126 Great Deals out of 36,602 listings starting at $1,695
Used Dodge Ram 1500"
537 Great Deals out of 13,916 listings starting at $1,595
Used Toyota 4Runner"
384 Great Deals out of 18,843 listings starting at $2,400
Used Ford Expedition"
578 Great Deals out of 21,460 listings starting at $2,111
Used Honda Pilot"
578 Great Deals out of 19,578 listings starting at $1,800
Used GMC Yukon"
568 Great Deals out of 14,716 listings starting at $1,500
Used Toyota Highlander"
635 Great Deals out of 30,857 listings starting at $1,990
Used Ford F-150"
3,239 Great Deals out of 216,692 listings starting at $1,000

Used Cars For Sale

2017 Dodge Durango For Sale
9,100 listings starting at $25,562
2016 Dodge Durango For Sale
27 Great Deals out of 3,246 listings starting at $25,998
2015 Dodge Durango For Sale
83 Great Deals out of 2,096 listings starting at $22,000
2014 Dodge Durango For Sale
48 Great Deals out of 1,251 listings starting at $14,991
2013 Dodge Durango For Sale
95 Great Deals out of 1,695 listings starting at $12,500