Question about 2004 Chevrolet Aveo

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2004 aveo timing belt broke, all valves bent

Lost the timing belt on 2004 aveo, has 64000 miles on it, bent all the valves(how come this isn't a noninterference motor?)can't find valves, chevy dealer has 5 need 16, no parts stores can get them, no rebuilder can get them, can't find a rebuilt head, so i bought a used engine from a salvage. Now here is my dilema, do i replace the head or whole engine? Bear in mind, i don't know if i can obtain gaskets yet.

Posted by steeltek on

  • aveoapple Aug 15, 2008

    I had the same problem with my 04 aveo. Timing belt just snapped right before 60,000 but my dealership replaced everything at no cost. Said something about "factory warrenty"?? I have an extended warrenty, but maybe it is a common problem? ??

    They just rebuild the head and it runs like new... now I am having transmission problems. Anyone know how much transmission fluid for the aveo costs?

  • james_sam807
    james_sam807 Jul 29, 2012

    125 bucks at the dealer



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Just go to any junk yard and find a used deawoo lanos and pull the head if timing belt was not broke, if it looks good, its a exact fit 100%, no special tools needed, just normal wrench set and torqe wrench. after head is installed, get a gates timing belt only.

Posted on Dec 26, 2008



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You can find them on AVEO INTAKE VALVES and AVEO EXHAUST VALVES...The name of the store is Allstate engine parts...Good Luck!!!!

Posted on Aug 04, 2008



Is it common to have so many destructive issues with the 04 Aveo whenever the timing belt breaks?

Posted on Sep 04, 2008

  • Joe Waclaw
    Joe Waclaw Jul 25, 2015

    Most modern engines do this when the timing belt goes, the upside is that this is not an Audi but a simple Aveo. Parts are cheap and the job pretty simple relative to how complex cars are today. The solution is learn to have the timing belt changed every 30K-40K miles. It really isn't that horrible a job. If you are comfortable changing spark plugs, most can do it. what's more a complete timing belt kit can be had off Ebay for $60.


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I own a nissian pickup with 260,000miles on the motor. The timing belt broke when I went to park it. It is a collision engine what are the chances the motor is fine.

niceugot2see, If your vehicle is an interference engine then there is a chance that a few valves got bent when the belt broke. The engine should be fine but, the valves in the heads will have to be checked for any damage. If they are, you will have to make a decision to either replace the damaged valves and guides or the entire head. I believe that it is cheaper to replace the head than to pay for the labor to replace the valves and guides. Good luck with this.

May 14, 2011 | 2004 Chevrolet Aveo

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Timing belt broke - what else could be damaged? 2004 chevy aveo

bent valves worse case but on some cars when belt breaks the internal parts dont get damaged the only way to find out is to dismantle and inspect when putting new belt good luck

Feb 12, 2010 | 2004 Chevrolet Aveo

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My 04 chevy aveo just had the timing belt and water pump replaced, and then the mechanic said 2 of the 4 cylinders were bad and the vlaves were bent. does that happen?

I just wanna know how was it possible for him to know the (hidden under the cylinder head cover) valves were bent while only changing the timing belt and water pump ( both located at the side of the engine).

Feb 10, 2010 | 2004 Chevrolet Aveo

3 Answers

Timing belt broke is this a collision engine. Does it bend the valves if the belt breaks.

No, you are extremely lucky. This is not an interference engine and no damage should have resulted from the belt breaking. The belt should be replaced every 60,000 miles on this engine.

Dec 15, 2009 | 2004 Chevrolet Aveo

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Timing belt Broke are valves worped?

Hello momma_green: My name is Roger and I will help you. The 2005 Chevy Aveo 1.6 engine is a interference motor. That means if the timing belt breaks.The valves will be bent. I have one in my shop now that the belt broke on it. Bent all 16 valves and damaged all 4 pistons. This is not a forgiving motor. I wish I could tell you good news but I cant. Should you need further help please just ask. Please rate the answer you received. Thank You for using Fix Ya. Roger

Oct 30, 2009 | 2005 Chevrolet Aveo

1 Answer

I put a head on a 2004 aveo after the timing belt broke and cant get no compresion iline the timing marks up by the book can i still be a 180 degrees out

Do you have a compression tester. If there is truely no compression you messed up the head big time. If you have compression then yes, you could have not truely been at TDC, but instead like you said, 180 degrees backwards. If the timing chain broke you could have bent valves. Smaller engines have an interference between the piston and valves. When the piston is up the valves must be closed or they will hit. When the chain broke this could have happened.

Mar 31, 2009 | 2004 Chevrolet Aveo

2 Answers

No compression!

this could have happened if the timing belt broke. You are supposed to change the timing belt every 60 to 90 thousand miles.

Jan 15, 2009 | 2004 Nissan Sentra

1 Answer

1984 Nissan 300zx

the timing belt should be changed every 60,000 miles.
your engine is an interference engine, which means if the timing belt breaks or skips, the valves will hit the pistons.
if your belt broke you will have bent valves. so the heads will need to come off and bent valves replaced.

Aug 18, 2008 | 1992 Nissan 300ZX

3 Answers

Tune up

At 60,000 you should have all the major things done if you haven't already:
oil change(every 3000)
air filter change(every 15,000)
coolant flush(every 30,000)
spark plugs and wires(every 30,000)
transmission fluid & filter change(every 30,000)
brakes (as needed)
PCV valve (every 20,000)

You can wait until about 75000 miles to do your timing belt.

Hope this helps

Jun 22, 2008 | 2004 Chevrolet Aveo

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