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Old 08-23-2009, 12:06 AM   #1
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Location: Pensacola, Fl.
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exhaust manifold issue

We have an 2001 alpine 38' w/ isc 350hp and our exhaust manifold had cracked. I purchased the manifold from cummins in Jackson, Ms.,price was out the door around $330. including gaskets(however the set of exhaust flange gaskets package said 6 but only 5 were in package). I was going to be near Jackson for a few days so I checked with service dept. on how much labor would be, they quoted $750.00 - sounded a little high so I decided to wait till I returned home to Florida and take care of myself. Actual work time to complete swap was 1 hour 45 minutes, and I'd never done it before (that works out to around $428 an hour, I do understand standard book time-if that's what they used- but thats a little over the top) . So if you need service in Jackson, ms. beware of Cummins there. We did have another issue with this same place a few years ago which is the main reason I investigated our recent issue myself and decided to repair myself. Our past issue was with loss of power and they diagnosed w/o doubt that our CAC was bad, what a nightmare that was in obtaining a new CAC, of which i did all the leg work to obtain, they replaced CAC and i went for a test drive and still no power. We had just spent somewhere around $4,000.00 and problem was not solved(I could have chewed titanium nails). Turns out after actually hooking our rig up to diagnostic machine( which I don't feel ever happened to start this process) the PAC-BRAKE had locked up! Just disconnected it for temp. and on my way, did not get any brake on the bill for CAC, were just told well you needed that too. Anybody ever needs a CAC near Pensacola, FL. still have the original in my shop.
p.s. Jerry in parts dept. at this cummins very helpful.
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Old 08-23-2009, 03:39 PM   #2
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Location: Simi Valley, Calif
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Was the old CAC checked for leaks.
I have a 2001 34 with the 350 and it may have started leaking.
Were having it checked after labor day.
Send me PM possible cost and shipping. We are in calif

Sandy and Deb
2001 34 fdds
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Old 08-24-2009, 04:18 PM   #3
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exhaust manifold

Here comes the dumb question -----what's a CAC?
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Old 08-24-2009, 04:54 PM   #4
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intercooler, aka Charge Air Cooler
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Old 08-24-2009, 06:57 PM   #5
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When I had my radiator replaced at the beginning of this year with 25k on the coach I had the CAC checked for leaks as it was out of the coach anyway. The test cost me $100 and showed two pin leaks while pressurized at 100psi. We decided that we could live with that as repair is very difficult and not worth the risk. The coach has plenty of power.
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