2008 dodge ram 2500 6.7 diesel

All things considered....there were tens of thousands of the 6.7L 07-09 models sold, and if you look at the problems....yes they were out there, but it wasn't the majority. You don't usually hear from the ones that aren't having issues...so it seems they are all having issues because all you ever hear is those griping about problems.
I have a 2012 2500 with the 6.7L. It has been in for O2 issues already at 38K. I wouldn't call that constant problems. So far I love mine, and don't regret buying it at all. I take good care of it too and hoping I will get as much life out of it as my 2003 5.7L gas rig I had that I traded off.
Even the 2010-12 have had a group of issues ranging from death wobble in the front end, blown turbos, some head gasket failures, and so forth...but again, it is the minority...not the majority.

mrkoje wrote:

carringb wrote:

mrkoje wrote:
The people who were having problems with the 07-09 6.7l Cummins usually had a plugged particulate filter. This was caused by never getting the truck into a regeneration cycle. These people never got into the regeneration cycle because they didn't use the truck ... too much start and stop in town grocery runs and not enough towing going on.

Or being used all day every day, including towing about 30% of the time. Still was a fuel sucking POS (both of them). Yes, they were nearly always in regen because our service area was primarily in town. But I don't think that was the reason for premature water pump failures, turbo failures, and an Aisin transmission failure at 60,000 miles.

You mentioned Aisin failure - that tranny was only offered on the cab & chassis up until 2013 so you must be referring to some type of fleet use I would imagine. I've seen plenty of issues with the engine but I wouldn't go as far as saying that all of them or even most of them had water pump and turbo failures.

Actually, the pre 2013 Aisin transmissions are a different unit (AS68RC) versus what's offered in the 2013+ chassis cab and regular pickups (AS69RC) which from reading is a much beefier unit.

carringb wrote:

mrkoje wrote:
The people who were having problems with the 07-09 6.7l Cummins usually had a plugged particulate filter. This was caused by never getting the truck into a regeneration cycle. These people never got into the regeneration cycle because they didn't use the truck ... too much start and stop in town grocery runs and not enough towing going on.

Or being used all day every day, including towing about 30% of the time. Still was a fuel sucking POS (both of them). Yes, they were nearly always in regen because our service area was primarily in town. But I don't think that was the reason for premature water pump failures, turbo failures, and an Aisin transmission failure at 60,000 miles.

You mentioned Aisin failure - that tranny was only offered on the cab & chassis up until 2013 so you must be referring to some type of fleet use I would imagine. I've seen plenty of issues with the engine but I wouldn't go as far as saying that all of them or even most of them had water pump and turbo failures.

do a search on cumminsforum.com to find a wealth of information. I haven't had any major problems, I do like the truck more a little now that its emisons deleted just because its getting better mileage. The problems with the truck is the weak front end that wears our too quick. I would get the front universal joints, ball joints and axles seals inspected.

mrkoje wrote:
The people who were having problems with the 07-09 6.7l Cummins usually had a plugged particulate filter. This was caused by never getting the truck into a regeneration cycle. These people never got into the regeneration cycle because they didn't use the truck ... too much start and stop in town grocery runs and not enough towing going on.

Or being used all day every day, including towing about 30% of the time. Still was a fuel sucking POS (both of them). Yes, they were nearly always in regen because our service area was primarily in town. But I don't think that was the reason for premature water pump failures, turbo failures, and an Aisin transmission failure at 60,000 miles.

The people who were having problems with the 07-09 6.7l Cummins usually had a plugged particulate filter. This was caused by never getting the truck into a regeneration cycle. These people never got into the regeneration cycle because they didn't use the truck ... too much start and stop in town grocery runs and not enough towing going on.

I had a 08 also. I never had any problems but the mileage was horrible for a diesel. 16hwy 11city. Just be sure it had the turbo cleaning done and all the updates. Mine was stock but a friend had one with all the deletes done and it was a beast. Good mileage too.
Also the are real finicky about short trips (clogging up). The 6.7 was designed to WORK.

I will be the one to say that my 07.5 6.7 Cummins was flawless. It didnt get the best of Fuel mileage, but i NEVER had a SINGLE problem out of the truck. It is actaully the truck that i compare to. Some people didnt have to great of luck, but i Loved that truck.

Had a 2008 and many "CELs". Factory authorized a change over to the 2010 turbo and all was fine. Turbo even came with a clean out port (2010). Went to a 2012 2500 6.7 and went over to the "dark side" with a 2013 Ford F150 and Ecoboost.

I had the same truck and was very unimpressed with the fuel mileage on mine. Not a heck of a lot better towing same TT than my 2002 Ram 1500 with the 4.7L. Well below the cost differential between diesel and gas.