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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2007 aveo, had timing belt go while driving, I have been

Customer Question

2007 aveo, had timing belt go while driving, I have been down this road before, new belt on, engine is free and has compression, starter spins but will not engage fly wheel, replaced starter, still just spins, sensor problem?
Submitted: 1 year ago.
Category: Chevy
Expert:  EricFromCT replied 1 year ago.

Hi. What is the engines compression?

Customer: replied 1 year ago.
Expert:  EricFromCT replied 1 year ago.

How do you get that if the motor does not turn over?

Customer: replied 1 year ago.
that was my last compression tests completed at my last oil change
Expert:  EricFromCT replied 1 year ago.

Have you checked the compression since the belt breaking and a new belt installed?

Customer: replied 1 year ago.
kind of hard to do since the starter will not engage
Expert:  EricFromCT replied 1 year ago.

Exactly. SOunds to me like the starter is turning the engine over but there is no compression due to damaged valves. Have you actually looked at the crank pulley while someone is starting it to see if the motor is turning?

Customer: replied 1 year ago.
when turning the motor manually when installing belt and I have been turning motor since, I can feel compression Resistance is still there, motor has compression, starter will not engage the flywheel, no teeth missing new starter, there may indeed be damage to the engine, need to get starter to engage the flywheel
Expert:  EricFromCT replied 1 year ago.

I asked if you can see the crank pulley turn when someone is cranking the engine.?

Customer: replied 1 year ago.
Crank pulley is not turning when starter is spinning................
Expert:  EricFromCT replied 1 year ago.

Then you need to make sure you have full 12 volts to the trigger wire of the starter. ANd also the main power wire to the starter is clean and is clean and tight at the battery.

Customer: replied 1 year ago.
Oh boy, thanks for your help!
Expert:  Gary replied 1 year ago.

do you have a multi meter on hand ?

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