Should I Never buy an 8.3 ISC ?

[Coma]

We have logged 35k miles since we bought ours. We've replaced the lift pump, the exhaust manifold and the crank and cam position sensors. The MH was 10YO at the time. The lift pump leak was due to ULSD and the two sensor was due to sitting on the sales lot for 3 years. I have no doubt the exhaust leaks were due to PO operator technique.

The ISC and its stroked cousin the ISL are probably the most common engines in MH. If you are going to avoid them you will narrow your choices considerably. Parts and service are available everywhere. I read on this web site exhaust manifolds were in short supply, I did not have that experience.

Keep in mind that for every internet horror story, there are probably 10000 folks with no issues. I have logged all my fuel since the MH was purchased. 8.3mpg with a MH that weighs 33k and 7.3mpg towing 7k. We have visited all 4 coasts from sea level to 11,300 at Eisenhower Tunnel.

YMMV

[ColoradoHRE]

We have just recently had to have the CAPS Fuel Injector Pump replaced for the 3rd time in a little over 3 years. The first time the accumulator was replaced - the second time the whole pump was replace along with the lift pump - this third time the whole pump, lift pump, and suppressor were replaced. We have contacted Holiday Rambler, Cummins Distributors, and Cummins Corporate to request help in identifying a method to locate the root cause. So far fuel test for contaminants and then tank clean if needed is the only identified potential root cause.
The mh is a 2002 Endeavor diesel with 47,000 miles and was purchased in '08 from the first owner with 21,000 miles at that time. We had about 15,000 miles before 1st failure and have about 11,000 miles from 1st failure to the current 3rd one. We take care of the mh and have never mistreated it and thought we did acceptable fueling at truck stops and winterizing here in Colorado winters.
Any suggestion on how to proceed in finding root cause would be appreciated or any comments about any obvious things we are not doing correct would be appreciated.

[Smitty77]

I responded to your primary post, here:

http://www.irv2.com/forums/f123/repe...lp-289659.html

Suggest remaining with that that thread, as it is specific to your problem!

Best,
Smitty