1997 Chevrolet Astro Q&A
1997 Chevrolet Astro Question: Problem with cooling system
GM was putting something called Stop Leak Tablets in their cooling systems from the factory. This residue may be due to the tablets. Check the oil and see if it is a milky white color. This will let you know if the oil and coolant are mixing. IE: head gasket, intake gasket, etc.. If you are still worried you can rent a compression tester from an auto store and check compression on each cylinder. If you had a blown head gasket this would affect the drivability of the vehicle. - gmc4me
What could be the issue? is it worth to repair, truck run smooth,no somoke,rear differential serviced with new breakes disc,drums etc. please advise.
the evaporator coil in 2001 astro van has been replaced, along with new radiator has been replaced, did dye check, no leaks, why is the air just blowing air, not cold air?