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Q: Issue with ignition. Car overheated and will no longer crank.

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Can the ignition play a big role in it when the car don't start it just goes "tick" and the battery is full I overheated in it one n it never ran again the stater was turning over but in a different tone more quiet re then it use too like a belt fell off in the engine now it won't turn over from the key I'm indeed to fix it can you help me with some top notch answers???
My car has an automatic transmission.

A: The ignition system does not play a role in...

The ignition system does not play a role in cranking the engine. It only comes into play once the engine cranks to provide spark to burn the fuel and make the engine run. If the engine does not crank, the problem lies elsewhere. This can be due to a bad starter or wiring issue.

Also with overheating the engine, wiring to the starter could have been damaged as well as the engine itself can be damaged internally. Your engine had a cast iron block and aluminum cylinder heads. Aluminum heads can warp very easily if the engine is overheated.

Warped heads can change the compression ratio in the engine. It can go either way - either reduce the compression ratio due to cylinder leakage and make the engine seem "easier" to crank. Or, it can raise the compression ratio enough that the engine locks up and cannot crank at all.

To avoid any unnecessary repairs, have a certified technician, such as one from YourMechanic come to you and inspect your vehicle as to why it will not crank.

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