WHEN THE VEHICLE ACCELERATED, THE RPM'S WHINED OUT AND THE TRANSMISSION ENGAGED ROUGHLY WHICH ALSO CAUSED THE VEHICLE TO SURGE.TS *JB
2004
ENGINE
I STARTED HAVING PROBLEMS WITH MY 2004 CHEVY TAHOE IS SEPTEMBER 2009 WHEN THE VEHICLE ONLY HAD 71,000 MILES. THE VEHICLE WAS USING A LOT OF OIL AND I TOOK IT TO THE DEALERSHIP AND THEY NOTIFIED ME THAT THEIR WAS NO OIL LEAKS AND PERFORMED A COMPRESSION TEST. SINCE THAT DATE I HAVE NEEDED TO ADD ADDITIONAL OIL IN BETWEEN OIL CHANGES. IN THE LAST COUPLE OF MONTHS IT STARTED TO USE A LOT OF COOLANT. I HAVE ADDED ABOUT 4 GALLONS OF COOLANT IN THE PAST TWO MONTHS. I TOOK THE VEHICLE TO THE DEALER AND WAS NOTIFIED THAT THE LEFT CYLINDER HEAD WAS LEAKING COOLANT IN THE ENGINE. AFTER FURTHER RESEARCH I FOUND THAT THE CASTECH HEADS IN THIS MODEL WERE POROUS WHICH CAUSED THEM TO CRACK. THE DEALER IS RECOMMENDING THAT THE ENGINE BE REPLACED AT A COST OF $6400. I FEEL CHEVY SHOULD BE RESPONSIBLE FOR THIS REPAIR SINCE THEY ARE AWARE THAT THE PROBLEM HAS TO DO WITH THE CASTECH HEADS. *TR