Loss of oil pressure at idle,5.7 hemi

45

Asked by Feb 09, 2015 at 10:12 PM about the Dodge Ram 1500

Question type: Maintenance & Repair

2009 dodge ram 1500 4x4,5.7 hemi.125,000 miles. Recently loss of oil pressure at idle,in
gear,stopped. Drops down to 5 psi. At 70 mph, gauge reads 40-45 psi. Changed oil
pressure sensor with oem. Fixed for about a month. Now back to same issue. Control
module threw a code of oil pressure  out of range/cam phasers. Im old school
mechanical. Not sure what to do here. First thought was oil pump and screen but have to
drop the front end and raise  motor to do it. Not knowing  for sure if thats the fix, its labor
intensive. Any one that can help would be greatly appreciated.

3 Answers

30

Rpm,s of oil pump not matching engine speed.Check drive of oil pump.OIL pumps have known to hydro glide while in service. With the water mixing oil will slide with 0 pressure, with loose tolerance of lower engine mass rotation slop is present.Replace Pcv valve change oil and use a mechanical gauge for accuracy.

2 people found this helpful.
10

Did you ever find out what it was that caused the problem? I have to ask because i just Hit 126000 miles on my dodge ram 1500 and its doing the same thing. Just had a oil change last month, no noises or anything and the oil is within range.

1 people found this helpful.
45

Hey,sorry for the delay. My engine is a MDS type. Hate it!!!! Anyways, the oil pressure issue for me was caused by the mds system. It shuts off 2 cylinders,Keeps them from firing when your cruising along down the highway. What it did was,cause one of the roller tipped lifters to go bad on the roller end and ruin the top end of the engine. I am like you,old school. Had i known what was happening, i would have torn it apart at that moment and redone the upper end of the motor. I kept doing small cheap fixes in hopes of it being fixed while driving it at the same time just because i didnt have the money to take it somewhere. My best advice to you is to stop driving it and take it to dodge for them to check. mine showed a constant misfire on #4 cylinder. Engines for an 09 are specific, did lots of research on this along with a couple of mechanics that I've befriended through this ordeal. You cant put a 10 engine in,or so I'm told. Feel free to call me at 210-701-2440. I would hate to see you pay the price I did.

4 people found this helpful.

Your Answer:

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 9,293 nationwide Ram 1500 listings starting at $1,800.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,130
  • #2
    pudgybear
    Reputation
    6,810
  • #3
    dandyoun
    Reputation
    6,380
View All

Related Models For Sale

Used Ford F-150
2,357 Great Deals out of 199,530 listings starting at $1,300
Used Ram 1500
1,058 Great Deals out of 124,398 listings starting at $3,500
Used Chevrolet Silverado 1500
1,860 Great Deals out of 158,323 listings starting at $1,000
Used Dodge Ram 2500
131 Great Deals out of 4,723 listings starting at $999
Used GMC Sierra 1500
809 Great Deals out of 60,637 listings starting at $1,495
Used Toyota Tundra
468 Great Deals out of 37,942 listings starting at $1,750
Used Toyota Tacoma
465 Great Deals out of 49,935 listings starting at $2,695
Used Dodge Charger
332 Great Deals out of 30,194 listings starting at $2,000
Used Dodge Challenger
185 Great Deals out of 22,230 listings starting at $7,495
Used Ford F-250 Super Duty
472 Great Deals out of 37,739 listings starting at $1,999
Used Dodge Dakota
84 Great Deals out of 3,038 listings starting at $1,982
Used Nissan Titan
236 Great Deals out of 22,023 listings starting at $2,995
Used Chevrolet Colorado
285 Great Deals out of 39,126 listings starting at $1,500
Used Ford Mustang
303 Great Deals out of 40,193 listings starting at $1,312
Used Ram 2500
240 Great Deals out of 30,837 listings starting at $6,900

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.