Ram 2500

Increased Oil Consumption Due to Intake Manifold Gasket Leak on Dodge Ram 2500

Problem Description and Possible Solution

On 3.9L V6 and 5.9L V8 engines, the intake manifold gasket may leak and cause increased oil consumption and a spark knock during acceleration; the gasket should be replaced.

Problem Data
RepairPal Verified
Average mileage: 123,866 (16,000–215,465)
Engines affected: 5.7L V8 HEMI, 5.9L V8
10 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2004
15 people reported this problem
Viewing 1 - 4 of 4 comments
It's knop repaired at this time,i have no oil leaks.But i have a combanaition of prob.Yes it use's a great deal of oil,and i have two code's that keep popping up.700\741.(gas milage is about 11.5.....
Ialso had the manifold plenum leak. oil consumption was first clue eventually ruined cat converter. removed intake cleaned everything up reinstalled w/ new gaskets ran a can of sea foam replaced cat ran like a sports car.
had to put in 2 quarts of oil and i have only got 1500 miles since oil change. i also have a miss and changed plugs, wires, cap and rotor. i just found the leak from the intake manifold and am going to replace it. hopefully this takes care of the probblem.
Our Dodge Ram 2500 has always used some oil, but nothing out of the ordinary for how much its driven and the loads it as pulled. Recently we hauled an oversized load a bit too heavy for the truck. It has used or burned or ? quite a bit more since then. Added 2 quarts oil about 3 days after th heavy load. And just again (maybe a week after put in 2qts )we added another 2-2 1/2qts. >> Problem not yet fixed. Reasearching the solution ... Anyone know the fix?