Question about 2001 Chevrolet S-10

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2001 chevy s10 6 cylinder,vortec engine loosing coolant

I am loosing coolant out of the container. i have checked the oil no water in it. tail pipe no ater or smoke.looked allover motor no sign.does no run any higher on guage, i am fixin to plug lines to check to see if it stops the water to see if its the heater core? any hep before i try that.anything A-Z. I have about got whipped.

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Check to see if the lower Intake gaskets are leaking. Check all four corners, antifreeze might be leaking from the intake down onto the transmission. This is a common problem, the intake gaskets are plastic.

Posted on Mar 12, 2009

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I had the same problem in a 2001 Sonoma (same truck as S10). Kept adding coolant while trying to locate the leak. Wasn't leaking into the engine, wasn't coming from the water pump, all hoses and connections were solid and no unusual smoke coming from the exhaust. I eventually found a hairline crack in the plastic radiator tank. When I would start the engine, there was no leak that was evident. I had to let it idle for a good long time before it built up enough pressure to start leaking from the crack. This is probably the reason why I could never find any coolant puddles under the vehicle. It was loosing it all while the truck was being driven. Had the tank changed out, and no more problems. I think I paid a local independent mechanic about $350 for the repair.

Posted on Feb 03, 2015

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