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C9 engine problem

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Richard And Babs Ames:
On the CAT RV forum there was some talk of a faulty engine exhaust brake control switch not releasing the exhaust brake when the throttle is reapplied I do not remember the specifics but you may have them check that out.

marty christensen:
Thanks for the info guys.  I guess at this point, I am going to let the service center work on it a few more days and if they cannot find anything, I will have to pay for nothing.  I was told that if nothing was found to be broken, then the Cat warranty will not pay anything.  But the techs are trying to find something.  The worst thing is I drive a defective engine until I can get better information documented as was suggested by Gerald and this power loss becomes more frequent or maybe goes away.  I will let you know what the outcome is later next week.

I have been wandering around on the Cat Club site for some ideas.

08 Contessa 400hp

JimCounts:
2008 Contessa with a C9 engine loss of power. Folks it sounds like the same issue I  have had. Engine light comes on and power drops.  I pull over, turn off the engine and then restart and the problem would go away.     The problem both times was the Turbo Charger which eventually locked up.  Both times in the middle of no where and I had to have it towed.  I know of at least two others who have had their turbo replace at least twice.

See more information below which I found out after this posting.

David Burris:
Marty,
Sounds very similar to what happen to our 400 C9  '08 Contesssa.  Black smoke and the engine computer put you to ~40 mph.  After changing the oil pressure sending units  (computer said change),  This did not fix the problem.  Then we had high fluctions in the high pressure oil pump.  Cat factory made them put manual guages in the engine to varify the computer.  After this was done and Cat replaced the high pressure oil pump (2 oil pumps in the North America) at the time.   This fixed the problem under engine warranty.


I hope this helps..

David B

Mike Humble:
We have been through two Turbos on 2008 Contessa C-9 425.  First at 12500.  Shortly after we left dealer check eng light came on.  Would come on and go off at random times.  Finally were able to get to Cat dealer in Penn.  Ran computer check and said it was normal.  Just showing reburning.  They actually said check engine light was good to come on.  That meant it was working.  Part of the time we lost power, some times not.  One thing happened all the time.  The light would go off if we stopped and restarted OR in exactly 30 min would go off.  Finally got to different Cat dealer in Oregon--ran test--said it was Turbo again.  Was on back order for 30 days.  Since then, ran 2000 miles with no problem, next 300 ch eng light came on 3 times.  Next 3000 nothing.  Had checked in middle and said it was boost pressure, but computer error.  Then one more time and now 2000 more with nothing.  Hopefullly they come up with answer.  When we lose power, it is about 25%. In all cases, the light went out in exactly 30 minutes. Hope someone can make heads or tails out of this.
Mike Humble

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