Engine Knock when Alero first starts up...

[tones3311]

2000 3.4 GL Alero
70k Mileage

When I first start my ALero in the mornings she starts fine but there is a knocking in the engine on the drivers side. It only lasts for about 1 minute until the car warms up and then goes away.

I thought I saw somewhere before someone said this might be the "lifters"....does that sound about right?

If so is that a big job to get done?

Thanks

Tones

[Iflylow]

Mine did the same thing until I put some oil treatment in to dissolve carbon buildup. Sorry I don't remember the name, but there's a lot of products out there that you put in your oil that do the same thing. I had to put it in twice (over two oil changes) before my tapping went away.

[BNaylor]

Could be piston slap and there is not much you can do about it. Common in GM 3400 engines regardless of mileage. It normally disappears after about a minute or so.

[Meridivs]

What is a "piston slap" and how serious is that for the condition if the engine?

[BNaylor]

Visit www.pistonslap.com for further insight.