why my truck 1999 dodge ram 1500. when i turn it on, and is cold the oil pressure it goes up good , but when the engine warms up, the oil pressure goes lower again?


Asked by Mar 16, 2016 at 11:24 PM about the 1999 Dodge Ram 1500 2 Dr ST Standard Cab SB

Question type: Maintenance & Repair

2 Answers


Put a manual gauge on it so you can watch the actual pressure between cold and hot, it maybe a bad sender or you could have and oil pump problem, the manual gauge will verify if you indeed have an oil pressure problem or a sender or gauge problem. HTH


I agree, however what weight of oil is being used, and is it being changed at regular interval's, some cheaper grades of engine oil will break down and lose viscosity sooner than other better grades, higher mileage will also become a significant factor, considering, leaking seals, gaskets, valve seals, etc..

Your Answer

Add photo

Related Questions

  • What are some causes of oil pressure loss? 30 answers

    Losing oil pressure but it comes back. Could it be a sensor or is it a bigger problem?

    2001 Dodge Ram 1500 4 Dr SLT Plus 4WD Quad Cab SB


    Maintenance & Repair

  • engine noise on a 4.7L 40 answers

    2002 dodge ram 1500 4x4 with a 4.7lv8 I run 5w-30 oil in it and I am getting engine noise at startup that goes away when it warms up should i be consernsd?

    2002 Dodge Ram 1500


    Maintenance & Repair

  • Oil pressure 3 answers

    2004 dodge RAM 1500 5.7 hemi, I just replaced lifters, push rods, and rocker arms flushed oil system and changed oil now after engine warms up and about 45 minutes of driving the oil pressure drop...

    2004 Dodge Ram 1500 SLT SB 4WD


    Maintenance & Repair

  • Oil pressure drops to zero at idle 5 answers

    When the truck is idling it Has no oil pressure and the check gauge light comes on but when I raise the rpms it goes back to 40 I rebuilt the engine 650 miles ago and it has a new oil pump could ...

    2001 Dodge Ram 1500 4 Dr SLT 4WD Quad Cab LB


    Maintenance & Repair

Search Dodge Ram 1500 Questions

Dodge Ram 1500 Experts

#1 Dan Connell
Dan Connell
Reputation 5,280
#2 pudgybear
Reputation 5,000
#3 dandyoun
Reputation 4,670
View All

Related Models For Sale

Used Ford F-150"
3,268 Great Deals out of 216,650 listings starting at $1,500
Used Chevrolet Silverado 1500"
2,445 Great Deals out of 144,778 listings starting at $1,995
Used Dodge Ram 2500"
153 Great Deals out of 5,744 listings starting at $2,289
Used GMC Sierra 1500"
1,028 Great Deals out of 56,923 listings starting at $2,300
Used Toyota Tundra"
614 Great Deals out of 26,773 listings starting at $2,500
Used Toyota Tacoma"
623 Great Deals out of 30,504 listings starting at $2,850
Used Dodge Dakota"
161 Great Deals out of 4,799 listings starting at $900
Used Ford F-250 Super Duty"
444 Great Deals out of 42,988 listings starting at $2,250
Used Dodge Ram 3500"
105 Great Deals out of 2,511 listings starting at $4,995
Used Ford Mustang"
731 Great Deals out of 41,065 listings starting at $900
Used Jeep Wrangler"
463 Great Deals out of 16,414 listings starting at $3,400

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
87 Great Deals out of 1,563 listings starting at $4,695
2009 Dodge Ram 1500 For Sale
55 Great Deals out of 1,274 listings starting at $5,999
2008 Dodge Ram 1500 For Sale
87 Great Deals out of 1,737 listings starting at $4,490
2007 Dodge Ram 1500 For Sale
75 Great Deals out of 1,700 listings starting at $3,595
2006 Dodge Ram 1500 For Sale
60 Great Deals out of 1,586 listings starting at $1,795