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On 2002-02-07 19:59, Bullitt4075 wrote:
To bad it means leaving it over night as first thing in the morning is the only time mine does it. But then it isn't that cold here and may not cool off enough during the day. Does anyone get the noise at any time other than the first start of the day?
True Blue Bullitt Driver
<font size=-1>[ This Message was edited by: Bullitt4075 on 2002-02-07 19:59 ]</font>
This has proven to be a challenging noise to capture on tape. Sometimes in the morning it makes very little noise (it's still there, just not very loud and limited in the RPM band where it occurs). Other times at night on the way home from work it makes the noise quite loudly (around 10pm). I've even heard the noise mid-day after the water temp showed half way.
One would think if the problem were piston slap, it would occur every time the engine is cold, until the temps of the pistons warmed up.
If the problem were something screwy with the injectors and/or computer, then it could occur any time the conditions were correct.
A buddy claims to have a similar noise on his Porsche when cold. His mechanic told him it was his air pump (smog).
It's been a bit warm the last few days. When it cools off I'll keep trying to isolate the source of the sound.