Chevy Cavalier hard knocking sound

LCEMAN23

MEMBER
2002 CHEVROLET CAVALIER
4 CYL
FWD
AUTOMATIC
155,000 MILES

My 2002 Chevy Cavalier has a hard knocking noise in the engine I believe. It also idles very rough. I have no clue what is wrong with it.

Friday, March 25th, 2011 AT 3:47 AM

5 Replies

FIXITMR

MECHANIC
9,990 POSTS

Could be bad rod bearing. How long has it been doing the noise? Has it gotten worse with time?

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Friday, March 25th, 2011 AT 3:52 AM

LCEMAN23

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5 POSTS

It started making a noise not really loud when I would accelerate. Now as soon as I start my car it makes a terrible noise like I described. It has gotten worse I would say. I am not driving it now. If it is a bad rod bearing how much would it be as an estimate to fix it

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Friday, March 25th, 2011 AT 4:09 AM

FIXITMR

MECHANIC
9,990 POSTS

Might be cheaper to get a used motor. To fix, whole engine has to come apart. If it's a rod you should show a loss of some oil pressure.

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Friday, March 25th, 2011 AT 4:40 AM

LCEMAN23

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5 POSTS

So I would have to buy a whole new engine. I might as well buy a used car. That really sucks I don't have the money to buy anew engine and pay someone to put it in.

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Friday, March 25th, 2011 AT 4:49 AM

FIXITMR

MECHANIC
9,990 POSTS

Over the internet it's only my opinion based on your descriptions. I'm not there to hear it. You should seek an opinion from a mechanic who can hear the noise.