Random ticking... any ideas?

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Oct 20, 2008 | 06:10 PM

zr0skilz

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From: Colorado Springs, CO

Random ticking... any ideas?

I have a 2000 Trans Am, and occasionally can hear a "tick" sound. Sounds like something is arcing to me. The wierd part is it happens intermintently; some days I won't even hear it at all. For example, you'll hear "tick tick tick....[3 second pause]....tick tick..." It seems to be rpm dependent, BUT if I slowly rev the engine past around 3k rpm, it just goes away. The spark plug wires are newer, and all the plugs seem tight.

Anyone have any ideas?

Thanks

Oct 20, 2008 | 06:12 PM

02BLACKTAWS6

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A lifter tick perhaps? Common on ALL GM engines. Old and new.

Oct 20, 2008 | 06:46 PM

1FASTBIRD

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Quote:

Originally Posted by 02BLACKTAWS6

A lifter tick perhaps? Common on ALL GM engines. Old and new.

I would agree they are very commonn with the GM engines. If the ticking is really loud I would recommand changing yiou lifters. When you do a cam swap that is when more people change out the lifter's

Oct 20, 2008 | 07:35 PM

bluebird00

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Quote:

Originally Posted by zr0skilz

im having the same issue i can here it periodically and after 1500 rpms it goes away

Oct 20, 2008 | 09:42 PM

02BLACKTAWS6

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I just consider it "normal" with GM engines. I only have 18k miles and I have a little tick already. Unless it gets really loud, I wouldn't worry about it.

Oct 20, 2008 | 09:56 PM

zr0skilz

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Yeah, I mean I know how noisy these engines can be. My oil pressure is fine/steady at idle, so I didn't think it could be anything major.

So lifter tick does happen randomly like the situation I'm in? I was planning on buying a cam and was going to get the LS7 lifters. Are there better/quieter ones out there, or will those be fine?