โMay-22-2013 02:45 PM
โMay-22-2013 07:53 PM
โMay-22-2013 06:19 PM
โMay-22-2013 05:46 PM
ScottG wrote:
Not unusual for that eng to crack exhaust manifolds, is that where your slight leak is coming from? If it's bad enough you may be missing a lot of boost.
(BTW, it's a "Cummins")
โMay-22-2013 05:35 PM
adondo wrote:
It sounds to me like this only happens in the driveway, from your description.
I know Caterpillars de-rate until they're up to operating temp. I've been in places that I'm trapped in for a while until the Cat warms up enough to "give me some power" so I can get up a slope and escape a campground. (Such as some places in Colorado) The throttle isn't 40 feet of cable hooked directly, it's a rheostat mounted to the (probably Williams Controls) gas pedal, and sends a signal to the engine. (Drive by wire) You can't tell by the sound, the engine sounds normal enough, it's just "gutless" until the computer (ECM) decides it will run at full power.
If it's only happening in the driveway, then just wait until the coolant is up to temp, and your Cummins should operate normally. If it's doing that everywhere, then it's de-rating for some other reason, and a competent truck shop should be able to hook up to diagnostics and find out what's wrong. And, by competent shop, I don't mean the nearest RV dealer, I mean places that service Kenworth, Peterbilt, Freightliner, etc.
โMay-22-2013 05:13 PM
shaneperch wrote:
Is your turbo ok? how about head gaskets? Just an idea.
โMay-22-2013 05:09 PM
the bear II wrote:
What about building power with the brake on and then release the brake like they do in the tractor pulls ?
โMay-22-2013 04:46 PM
โMay-22-2013 04:34 PM
โMay-22-2013 03:22 PM
โMay-22-2013 03:09 PM