car wont' start - weird sound - no codes on dash

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Feb 20, 2008 | 03:38 PM

BigWill

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car wont' start - weird sound - no codes on dash

So I went to cold start my car today. It was turning over, about to start. Normally it takes a few cranks when its cold and in the AM. Was cranking as normal. Then it started making a weird sound and would not start.

When I crank it over now, it makes a strange noise along with the starter crank. It makes a kind of light thud thud thud sound ontop of the starter cranking.

Anyone know what this could be? Did I break a timing chain? I did have a rattle at cold startup(just for 1-2 secs after start). Seams strange.. No codes or anything

Feb 20, 2008 | 03:51 PM

Guest

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RE: car wont' start - weird sound - no codes on dash

Sounds like either you broke a timing chain or a timing chain tensioner failed and the chain skipped a couple of teeth. The rattle at cold startup is particularly telling - a classic sign of a failed tensioner. I wouldn't try starting the car again until you get it looked at.

Feb 20, 2008 | 03:56 PM

BigWill

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RE: car wont' start - weird sound - no codes on dash

Well I did just try it again. lol

Its turning, kinda of speeding up then slowing down. Seams to shake the car like its about to start.

Feb 20, 2008 | 06:48 PM

jag_genius

Joined: Jun 2007

Posts: 2,076

Likes: 40

From: Pompino Beach , FL

RE: car wont' start - weird sound - no codes on dash

ya could be a timing chain. broken..

Feb 21, 2008 | 08:45 AM

ken@britishparts.com

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Joined: May 2007

Posts: 2,533

Likes: 23

From: Houston, Texas

RE: car wont' start - weird sound - no codes on dash

Do not crank it anymore. Check out the chain tensioners. Maybe you can get away with fixing that and not dropping in a rebuilt engine. I know the chains are expensive, around a $1K+ for the kit and tools. It's a lot better than $6K on a rebuilt engine!