On Sat, 29 May 2004 14:05:41 -0400, Peter Grace wrote:
>
> One thing that I've noticed since I've gotten the new exhaust is that I
> cannot ford our oft-flooded parking lot at work anymore. It's very odd.
> Before, the Dak would eat the 1.5' standing water just fine and
> laugh it off. Now, when I emerge from the water, the engine sounds like
> it's from a 70 year old diesel. I crawled under the Dak to see if I
> could figure out why the truck sounded so loud... The catalytic
> converter was glowing orange! Is that even normal? I had absolutely no
> horsepower (took me about 15 seconds to get the truck up to 35mph).
> Both times I tried doing this (I thought the first time was a loose
> distributor which I remedied) the engine was cold (just started.)
>
> Anyone have any idea what might cause this?
I'm going to guess that fording the standing water caused the cat element
to possibly crack and plug the cat. That would explain the glowing cat,
because the exhaust gas wouldn't be passing through properly. It would
also create the symptoms you describe (namely no power at all, it should
also be difficult to rev in neutral).
Anyway, that's my guess. If anything, your exhaust system should create
more positive pressure out the tailpipe.
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