Cost to repair 2006 Chevrolet Malibu coolant leak.

Question = What would the average cost be to repair an oil and antifreeze intake leak -
2000 Chevy Malibu?

This is quite a common problem on this engine.
The gaskets have been redesigned from GM. There is now a kit with gaskets, bolts, and all seals to
complete the job. This kit is aprox. $85. Non-GM gaskets are about $50-$60. Labo for this job is 6 hrs.
Multiplied by the shop labor rate, lets say $75. So an estimate with GM gasket kit, plus labor, plus oil
change, plug antifreeze- Total approx $600.

Question: What does the GM repair Manuel show on time to replace the water pump and thermostat?
I have replaced the radiator cap 3 times, flushed and cleaned the system and everything was great
up until today when it started over heating again, after I had the harmonic balancer and belt replaced
on Friday.

It was running ok this morning and then went to lunch and it over heated and the light came on. Water
came out of overflow tube and I had it filled back up with water and am letting it sit for a while. Have
had this problem on and off for a couple of years now. Need to figure out what is happening. Getting
ready to trade it in for a new vehicle and do not need it over heating when I take it in to trade. Any
quick fixes?
As for time, are you meaning the labor time to complete the repairs? The water pump is a fairly easy
job and take about 1 hour to complete. The thermostat is a bit harder and can take up to two hours
to replace. If you're having overheating problems, do you see a leak? I wouldn't replace the pump or
t-stat for no good reason. If you can see it leaking, then fine. You could have a leaking intake
gasket, or even cylinder head gaskets. You mention adding water to it, but are you adding coolant
as well? If you're just running water, you will overheat for sure! Probably needs to be checked out
good before you trade it in.
When I had the radiator flushed and cleaned it was filled with coolant and the overflow ran over
yesterday and it only require a bit of water. I noticed first thing this morning that the radiator light came
on right a way and no heat was coming out of the vents, as I turned the heat on to cool down the
temperature issue, but no heat came out period. I also heard noises coming from under the hood in the
area of the new belt and harmonic balancer were installed. It may be just a sensor, but am going to have
it checked out this morning. I do not see any leaking what so ever and neither did the shop yesterday
when I ran by real quick.

Got it resolved. The overflow tank had a crack and the heat sensor inside was shot. I got lucky that it
was not worse. Thank you for all your help !
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Chevy Malibu Coolant Leak Repair Cost