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#1 Old 04-14-2012, 12:43 AM
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4.7 burning oil

hey all, im posting this for my mother. Her 1st gen durango runs pretty good minus the consumption of oil. I Was driving it the other day and after start up or a lengthy idle you can def see and smell oil burning in the form of smoke out the exhaust. Its kinda embarassing sometimes. Anyways....I checked the coolant and its good as new.....what would yall check next....rings.....pcv? It will also do it while waiting at red lights, i assume it doesnt appear as bad driving cause its not concentrated in one area

2006 Ram 2500 Quad Cab Longbed 4x4 Auto, Cummins Powered
8" BDS, 20x12 MHT MK-19, 37x13.50 Toyo MT.

"Certainly there is no hunting like the hunting of man and those who have hunted armed men long enough and liked it, never really care for anything else thereafter.......E. Hemingway "
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#2 Old 04-14-2012, 09:45 PM
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It's best in this case to get a compression test/blow-by-test done on each cylinder. Changing the PCV should be done every 30-K miles or so (that's when I change mine on my 5.9L, but you may be able to go up to 50K).

If the vehicle ran low on oil for a prolonged period of time, a ring may have seized causing excessive scarring on the cylinder wall large enough for oil to creep in, to which there is no easy repair - only rebuild.

2000 5.9 R/T - Platinum
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Amsoil in the diffs, transfer case and engine - Hughes Plenum - Fastman 52mm TB - K&N FIPK - SCT tuner currently set at 87 octane - Magnaflow 15659 exhaust

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#3 Old 04-15-2012, 12:05 AM
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it doesnt run low, when it gets a lil low its filled up. 112K i dont think PCV has ever been replaced

2006 Ram 2500 Quad Cab Longbed 4x4 Auto, Cummins Powered
8" BDS, 20x12 MHT MK-19, 37x13.50 Toyo MT.

"Certainly there is no hunting like the hunting of man and those who have hunted armed men long enough and liked it, never really care for anything else thereafter.......E. Hemingway "
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#4 Old 04-15-2012, 12:29 AM
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Quote:
Originally Posted by byrdawg13 View Post
it doesnt run low, when it gets a lil low its filled up. 112K i dont think PCV has ever been replaced
For roughly $8 and a few minutes of your time, it's more than worth while to replace.

One other thing I forgot to mention, if the engine has any 'knock' to it under certain throttle conditions, that can lead to some minor oil consumption. In that case make sure the plugs are gapped properly first. It's more prominent with the 5.2/5.9 engines as they had no knock sensors, but something to think about.

2000 5.9 R/T - Platinum
144,000m (233,000kms)
Amsoil in the diffs, transfer case and engine - Hughes Plenum - Fastman 52mm TB - K&N FIPK - SCT tuner currently set at 87 octane - Magnaflow 15659 exhaust

My 2000 R/T
2000 R/T Factory service Manual
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#5 Old 04-15-2012, 03:09 AM
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its the smaller v8, 4.7. no knock. runs good other then smoke

2006 Ram 2500 Quad Cab Longbed 4x4 Auto, Cummins Powered
8" BDS, 20x12 MHT MK-19, 37x13.50 Toyo MT.

"Certainly there is no hunting like the hunting of man and those who have hunted armed men long enough and liked it, never really care for anything else thereafter.......E. Hemingway "
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#6 Old 04-15-2012, 08:51 AM
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Quote:
Originally Posted by byrdawg13 View Post
its the smaller v8, 4.7. no knock. runs good other then smoke
Yes. Good. Not good.

As mentioned, get a compression test done and go from there as that will give you a better understanding of whats going on inside and narrow down the problem.

2000 5.9 R/T - Platinum
144,000m (233,000kms)
Amsoil in the diffs, transfer case and engine - Hughes Plenum - Fastman 52mm TB - K&N FIPK - SCT tuner currently set at 87 octane - Magnaflow 15659 exhaust

My 2000 R/T
2000 R/T Factory service Manual
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