I have a 2000 Dodge Ram 5.9 4X4. Its Loosing 2 quarts oil between oil changes, found absolutley no external leaks. Engine runs like a champ and there is no harsh black/blue smoke from exhaust. I suspect intake gasket by process of elimination: no exter. leaks, to smoke possibly sucking oil by vaccuum under hard exceleration, oil pressure is fine and plugs were not fouled out as of 15,000 miles ago.
2007-01-09 14:36:03 · 7 answers · asked by my61buick 1 in Cars & Transportation ➔ Car Makes ➔ Dodge
This is an easy one! It's the notorious intake plenum gasket.. undernieth the intake manifold, there is a belly pan that has a gasket that gets sucked in or blown out..then the motor sucks oil and vapors from the engine and burns it. Pretty much gauranteed it is this. Your gonna need intake set,belly pan gasket, heater tube o-ring, coolant, t-stat gasket( and t-stat while you are there),a little bit of black silicone, and possibly some other things depending on their shape..throttle body to air horn gasket, upper radiator hose...etc..
2007-01-10 02:56:07 · answer #1 · answered by Richie Rich 3 · 3⤊ 0⤋
You don't say how many miles you go between changes, but if you go 3000 miles, 2 quarts is not considered excessive by any oil or engine maker. That amount of oil usage would not show at the tailpipe either. Most modern ashless dispersant oil will not show smoke until you are burning 1 quart in 100 miles, because it burns so clean.
The only thing I have seen suck enough oil to make a Dodge smoke was a bad PCV valve.
2007-01-09 23:19:54 · answer #2 · answered by eferrell01 7 · 0⤊ 2⤋
i ve got a 99 Dakota rt that has the 5.9 in it. my friend bought one at the same time we cruised th same places at the same time and also used the same amount of oil between changes. Richie went to change his intake gasket and we found that the vally pan gasket was blown. the reason this happens is that the intake is aluminum and the pan is steel, the heat transfer pushes the gasket op the side. so ins-ted of me fixing my gasket i just bought a M1 intake that dosent have that silly pan gasket plus more power.
2007-01-10 18:32:39 · answer #3 · answered by Big Tim 2 · 1⤊ 0⤋
You didn't mention if you are pre-filling the oil filter when you change the oil. The filter holds nearly a quart and if you drive it hard and run over 5k between changes, with a good catalytic converter you could burn another quart and never know it. Check for any black soot in the tailpipe. If there is you may be burning it.
Good Luck.
2007-01-09 22:49:46 · answer #4 · answered by racerkeith 4 · 0⤊ 2⤋
another vote for Ritchie Rich.
the only thing i could add is to replace the O2 sensors and possibly the catalytic convertor if you didnt catch this in time.
racer keith, your a dodge mechanic for 35 years and you dont even suggest the belly pan gasket on the intake, next to the unitized hub bearings on the axle, you should know this is the other downfall to these trucks.
2007-01-10 20:58:17 · answer #5 · answered by dodgedude99 5 · 0⤊ 1⤋
what Richie Rich said and to check to see if it is the belly pan gasket. take your air hat off and open your throttle body butterflis open and look down with a flashlight. if you see alot of oil. then its the belly pan.
2007-01-10 12:37:00 · answer #6 · answered by Jecht 4 · 2⤊ 0⤋
Did you check cyclinder pressure.See if one is weaker.
2007-01-09 22:45:24 · answer #7 · answered by xphxpd 3 · 1⤊ 1⤋