2006 Chevy Cobalt Leaks out any antifreeze and it was overheating and running rough. White smoke is coming out from under the hood and underneath the car. Hasnt been driven since. Please help. It is a four cylinder and like I said about the mechanic, his phone number is disconnected after paying him thousands for repairs on several cars. This same fraudulent mobile mechanic added RTV stop leak, could that harm the car?
No coolant will trash an engine in no time. I don't use any stop leak. I replace the bad part. You have been taken. My neighbor did this also. His was different. He asked me first. I told him he had a ground problem. I would look at it. He had $500+ just in tow bills back and forth, let alone the shop charges. Finally he asked again. $15 and 30 minutes later he had his car back. Hate to say it but, a lot of garages aren't much better.
YES
antifreeze is needed in every engine as the additives in the antifreeze stop the water boiling at the cylinders, stop corrosion of the aluminium, stops the water freezing down to -10 C , lubricates the pump seal
Will it crack the block and heads ---most definitely as water expands on freezing and as it has no place to expand to and weak sections of the cast will fail and as cylinders and linings are less than 1.4 " thick that is what breaks
your cheapest fix now is a good serviceable engine from a rear ender from the wreckers /junk yard
OH -- and yes-- only use accredited mechanics from accredited service centres in the future
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