Startup Knock

my 99 does it. it has done it for a while but it hasnt gotten any worse. I'm told there is nothing wrong with it.

When I was living in Denver, I would start up my 22r on cold mornings (sometimes down to -10°F) and the engine sounded like there were a bunch of blacksmiths in the bottom tapping on anvils. This would go on for a few seconds then it would quiet down. Thing did it every cold morning for the six winters I lived there (always parked outside). I moved back to So. Cal eight years ago and it's been fairly quiet in the morning.

One morning (in Denver) I was talking to a neighbor when I started the engine. He said it sounded like the pistons were swapping holes... :>))

Tom - Vista, CA

I was running 10w 30, if I remember right. Anyway, that's ice under the bridge now, I moved back to So. Cal. in 1996, a cold morning here might be in the middle to high 30's, but it quickly warms up into the 60's...

Need to buy some more sunscreen... :>))

Tom - Vista, CA

Nunya Bidness wrote:

I purchased a '99 2.7L PerRunner during the summer and have noticed the knocking now that the temps have dropped to the 30's. Service has been maintained excellently (66k miles). I'm using 5w-30. Makes me feel better knowing I'm not the only one! Joey