VEHICLE EXPERIENCED ENGINE SURGE ALMOST CAUSING VEHICLE TO RUN STOP SIGN.
1996
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
THE GMC ANTIFREEZE KEEPS BREAKING DOWN FORMING SLUDGE SO BAD I HAD TO REPLACE THE RADIATOR . 6MONTHS LATER IT HAPPENED AGAIN THE DEALER SAYS THAT SOME ONE PUT THE WRONG ANTIFREEZE IN THE SYSTEM MY MECHANIC SAYS THAT HE HAS SEEN ANTIFREEZE MIXED IT IT DOESN'T LOOK LIKE WHAT KEEPS HAPPENING IN MY COOLING SYSTEM IS ANY ONE ELSE REPORTING THIS PROBLEM? MY RADIATOR HAS BEEN REPAIRED BY THE DEALER ONCE REPLACED BY MY MECHANIC ONCE AND SYSTEM FLUSHED. I WITH IN THE MONTH HAD TO REPLACE THE WATER PUMP THE DEALER DID THAT REPAIR AND POWER FLUSHED THE SYSTEM. IT MAKES ME WONDER IF THIS ISN'T A GMC PROBLEM LIKE THE TIME THEY FILLED THE FAULTY CADILAC ENGINE BLOCKS WITH STOP LEAK TO BE ABLE TO SELL THEM.GMC CLAIMS THAT THIS ANTI FREEZE IS SUPPOSED TO BE GOD FOR 100000 MILES WHAT GIVES. *AK