Drop in Oil Pressure as Engine Warms up

Asked by Apr 23, 2018 at 10:57 PM about the 2000 Dodge Ram 1500

Question type: Maintenance & Repair

I have a 2000 Dodge Ram 1500 with 5.2L V8
engine. The truck sounds greaf, but after it warms
up for a bit, the oil pressure drops a bit. When it is
first turned on, the pressure reads great on the
gauge on the dash. After it begins to warm up, the
pressure drops a bit, but still in the good range. But
within 5-10 minutes after it has been idling, it drops
to zero when I get the engine to 3000 rpms and
goes back to in the “good range” at idle. After doing
that a few times, then the gauge just stays at zero.
Any thoughts on what this may be? Is the gauge
faulty? Or is there a bigger problem?

1 Answer


Sounds like the electrical oil pressure switch mounted to the engine. Everyone wants to call it a "switch", not a sensor...meaning roughly, it's either open or closed. If the switch is going bad or the connector is "flaky", check 'em both out. Not unusual for the pressure switch to go AWOL...harsh environment, that kinda thing.

Your Answer:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
  • #2
  • #3
View All

Related Models For Sale

Used Ford F-150
128 Great Deals out of 10,787 listings starting at $3,600
Used Chevrolet Silverado 1500
93 Great Deals out of 10,111 listings starting at $5,500
Used Dodge Ram 2500
74 listings starting at $7,500
Used GMC Sierra 1500
74 Great Deals out of 9,979 listings starting at $5,000
Used Toyota Tundra
32 Great Deals out of 1,486 listings starting at $5,200
Used Toyota Tacoma
21 Great Deals out of 1,680 listings starting at $4,688
Used Ford F-250 Super Duty
18 Great Deals out of 707 listings starting at $1,500
Used Dodge Dakota
6 Great Deals out of 134 listings starting at $3,500
Used Ford Mustang
51 Great Deals out of 1,300 listings starting at $2,900

Used Cars for Sale

2010 Dodge Ram 1500 For Sale
9 Great Deals out of 169 listings starting at $8,888
2009 Dodge Ram 1500 For Sale
3 Great Deals out of 75 listings starting at $9,999
2008 Dodge Ram 1500 For Sale
7 Great Deals out of 77 listings starting at $4,999
2007 Dodge Ram 1500 For Sale
55 listings starting at $4,995
2006 Dodge Ram 1500 For Sale
38 listings starting at $5,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.