You could also have a leak. look for carbon deposit's around the joints in
the tubing. the leak would be letting air in rather than out which could be
causing the pop pop when lifting off.
----- Original Message -----
From: "DML Digest" <owner-dakota-truck@dakota-truck.net>
To: <dakota-truck-digest@twistedbits.net>
Sent: Friday, July 26, 2002 12:00 AM
Subject: DML Digest V5 #324
>
> DML Digest Friday, July 26 2002 Volume 05 : Number
324
>
>
>
>
> Date: Fri, 26 Jul 2002 01:22:51 +0000 (UTC)
> From: jon@dakota-truck.net
> Subject: Re: DML: RE: Re: Cat Back 'back firing'
>
> "Ronald Wong" <ron-wong@cox.net> wrote:
>
> : Not just the 4.7's. Most all that I know of. Since this EFI and OBD-II
> : most engines run pretty lean so when you let off all that heat does
ignite
> : whatever's left.
>
>
> My '96 318 does it until the engine warms up, particularly when engine
> braking down a slope - I've noticed that if I give it just a touch of
> throttle, it'll stop. (Probably a little throttle is just enough to
> kick it out of open loop and start spraying a little fuel into the motor.)
>
>
> - --
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