Quote:
Originally Posted by biznazion
I've got a 99 tahoe with 155K on the odometer. Last winter it started ticking when started. It seemed connected with cold[er] weather and would stop shortly after the truck warmed up. The truck has had the intake manifold resealed twice and it's leaking again from the front left corner. I read some posts about "piston slap" and thought maybe that was it, but the truck still does it in warmer weather. It seems to be totally random and doesn't matter if the truck is fully warmed up or not. Sometimes it will tick for a few seconds, sometimes it will last for 15 minutes or more. The ticking frequency will increase with engine RPM and seems to "fade" away when it stops. Sometimes just shutting off the truck and restarting it will stop the noise. There doesn't seem to be any effect other than the noise - which is annoying.
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so did you get anywhere with this lifter noise ?