[s-cars] Detonation - I think

[Philip Mische]

Sounds like detonation to me.  A bad load of fuel perhaps?  I'd start by
loading up with the highest octane I could find & see if the problem abates
or goes away.

P

----- Original Message -----
From: "Richard Tanimura" <richard at tanimuras.com>
To: <s-car-list at audifans.com>
Sent: Friday, October 10, 2003 2:26 PM
Subject: [s-cars] Detonation - I think


> I am getting a rattling sound like dried peas being poured onto the
floor -
> when there is some load on the engine (4th and 5th gears, from half to WO
> throttle). If I back off throttle, the sound disappears. As long as I use
a
> light foot, there is no rattling sound. This is a first for me but it
sounds
> like the way I have heard detonation described.
>
> This is something that has popped up today and I can't think of anything
> except something restricting fuel flow or low fuel pressure.
>
> 1. Can this be anything other than detonation?
>
> 2. How can I check flow? How much fuel pressure should I be seeing?
>
>
> Worried,
>
> Rich
>
>
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