RE: Engine trouble [from JPOR: ]

["BRERETON, John" <John_BRERETON@xxxxxxxxxxxxx>]

I would think that if the catalytic converter is partially clog that it may
allow the engine to run at low rpm and not at higher rpm.  But, since you
mentioned that it wasn't too old, I would shy away from this as being the
problem, unless the vehicle had other engine problems that caused the
converter to go bad prematurely.  That gas cap cure thing seems interesting.
I've never heard of that but will have to remember that solution.

-----Original Message-----
From: Chris Waterman [mailto:Chris_Waterman@pmc-sierra.com]
Sent: Wednesday, June 07, 2000 12:14 PM
To: 'jeepoffroad@4x4wire.com'
Subject: RE: Engine trouble [from JPOR: ]


****************Please Remember to snip your replies***************

> Apparently, some ignition systems need a ballast resistor,
> some don't.  MSD ignitions would, HEI wouldn't.

Ah, okay.  I don't think mine (Ford TFI) does, but I remember
something like that on the old 4.2L.

> You say that if will idle, but dies when you press on the
> accelerator?  That sounds more like a problem with your exhaust
> system.  I've heard that a plugged catalytic convertor can
> cause that symptom

If all else fails, I'll replace the cat, but unfortunately the
whole exhaust is welded together so I can't check it without
cutting one of the pipes...

But the other thing is, I'd expect a plugged cat to cause this
kind of trouble ALL the time, not just when the engine's warm.

Chris (hoping it doesn't come to that)
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