1999 Chevrolet Tahoe Engine Problems

CONTINUOUSLY HAVING TO FILL WITH COOLANT DUE TO LEAK. NO LEAK FROM HOSES ETC. THE PROBLEM COMES FROM A DEFECT IN HEADS THAT ARE PRODUCED BY CASTECH. WENT ON LINE TO RESEARCH THIS AND FOUND NUMEROUS COMPLAINTS ABOUT THIS AND GM/CHEVROLET WILL NOT FIX. EXTENDED WARRANTY COMPANIES WILL NOT FIX BECAUSE IT IS A DEFECTIVE PART. DEALERSHIPS WILL NOT TALK ABOUT IT BUT IF YOU TALK TO AN MECHANIC AT A DEALERSHIP AND DESCRIBE THE PROBLEM THEY ARE QUICK TO TELL YOU EXACTLY WHAT IT IS AND THAT IT IS A DEFECT. THE COOLANT SEEPS THROUGH THE POORLY MANUFACTURED CASTECH HEADS. CALLED SOME OF THE LOCAL MECHANICS AND THEY ARE SAYING THE SAME THING-DEFECTIVE PART. NOW LIKE I SAID I HAVE CHECKED ON LINE AND HUNDREDS OR MORE PEOPLE ARE HAVING THIS PROBLEM AND ARE HAVING TO HAVE THE HEADS REPLACED AND ENGINES AT OUT OF POCKET. I DID NOT SEE WHERE A LOT OF PEOPLE ARE COMPLAINING ON THIS SITE BECAUSE LIKE ME THEY DID NOT KNOW WHERE TO GO. I FOUND OUT FROM A LAWYER WHO ALSO HAD THIS PROBLEM TO COMPLAIN ON THIS SITE. HE JUST SIMPLY GOT RID OF HIS TAHOE. ONE SAID THEY WERE STUCK ON THE SIDE OF THE INTERSTATE WITH YOUNG KIDS AND NO PHONE AND NO WAY OF AFFORDING TO GETTING HOME FROM OUT OF TOWN. NOW THAT IS BAD. *TR

TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT STATED THE ENGINE FAILED WHILE DRIVING 5 MPH. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPLACED THE ENGINE BUT SHORTLY AFTER, THE REPLACEMENT ENGINE ALSO FAILED. THE MANUFACTURER WAS NOT CONTACTED TO REPORT THE FAILURE. THE FAILURE MILEAGE WAS 141,000. UPDATED 5/9/11 *CN THE CONSUMER STATED THE ENGINE HAS BEEN REPLACED FOUR TIMES. UPDATED 05/18/11. *JB

1999 TAHOE ENGINE FAILED. *TS THE CONSUMER STATED THERE WAS NO INDICATION OF ANY KIND THAT THERE WAS A PROBLEM. *JB

INTAKE MANIFOLD COOLING SYSTEM LEAK. *JB

SMELLS OF ANTIFREEZE IN CAB. TOOK TO MECHANIC, INTAKE MANIFOLD GASKET MUST BE REPLACED. THIS IS DUE TO BAD PART INSTALLED. THIS IS A KNOWN PROBLEM WITH GMC. *JB

INTAKE MANIFOLD LEAKED AT GASKET AND AT STUB OUT FOR HEATER HOSE. COOLANT LEAKED OUT OF INTAKE MANIFOLD. INTAKE MANIFOLD HAD TO BE REPLACED

WHILE TURNING ON THE DEFOGGER WATER WAS LEAKING FROM THE VENTS. ALSO, DRIVER NOTICED THAT VEHICLE WAS RUNNING HOT. DRIVE TOOK VEHICLE TO THE DEALER FOR INSPECTION AND MECHANIC DETERMINED THAT THE HEATER CORE AND HEAD GASKET NEEDED TO BE REPLACED. *AK

THE CONSUMER WAS UNABLE TO ROLL UP THE REAR POWERED WINDOWS. THE ENGINE WARNING LIGHT ALSO ILLUMINATED WHILE VEHICLE WAS BEING OPERATED. THE CAUSE WAS NOT DETERMINED. PLEASE PROVIDE MORE INFORMATION. *JB

I HAVE A 1999 CHEVROLET MALIBU LS. THIS IS THE WORST CAR I HAVE EVER OWNED. SINCE I BOUGHT THE CAR WITH 60,000+ MILES ON IT AND IT WON'T BE PAID OFF UNTIL 2007 I HAVE HAD TO REPLACE A MANIFOLD GASKET, BATTERY, WATER PUMP, I HAVE HAD TO PUT A USED TRANSMISSION IN. YOU CAN NOT CHECK THE TRANSMISSION FLUID BECAUSE THERE IS NO DIP STICK YOU HAVE TO TAKE IT TO A PROFESSIONAL TO HAVE THAT DONE. THE AIR CONDITIONER COMES ON OFF WHENEVER, WHEN YOU PUT GAS IN THE CAR YOU HAVE TO GIVE IT GAS BEFORE IT WILL STAY RUNNING. I HAVE HAD BEARINGS REPLACED IN BOTH FRONT WHEELS, TIRES KEEP GOING BAD AS DO THE THE BRAKES. OTHER PEOPLE HAVE HAD THE VERY SAME COMPLAINTS ABOUT THESE CARS AND NOT ONE RECALL HAS BEEN MADE. I WILL NEVER NEVER BUY A CHEVROLET AGAIN LET ALONE A MALIBU. MY NEXT CAR WILL BE A HONDA. I AM STILL TAKING THE CAR BACK FOR THE TRANSMISSION PROBLEM THIS WILL BE THE 4TH TIME IN LESS THAN A WEEK. NOT ONLY IS IT STILL LEAKING TRANSMISSION FLUID BUT NOW I CONVEINTLY HAVE A COOLANT LEAK THAT I DID NOT HAVE UNTIL THE 3RD TIME OF TAKING IT BACK TO THE CHEVY GARAGE TO HAVE THE TRANSMISSION FLUID LEAK FIXED. THIS CAR SUCKS.*AK

THE AIR CONDITIONER LINES ON MY 1999 CHEVY TAHOE STARTED TO LEAK AND GM HAS TOLD ME THROUGHOUT THE SUMMER THAT THE PART NEEDED (PART #15010337) IS ON BACKORDER. THIS HAS BEEN A HOT SUMMER, AND WITH YOUNG CHILDREN AND AGING ADULTS, THIS IS NOT JUST UNACCEPATBLE, BUT DANGEROUS.*AK

MY HUSBAND AND I WERE IN ROUTE ONE EVENING WHEN THE CHECK ENGINE LIGHT CAME ON. FOLLOWING THE MANUAL'S INSTRUCTIONS: CHECK THE COOLANT GAGES, IT HAD A READING OF NEARLY 260. WE PULLED OVER AT THE NEXT EXIT, INTO THE PARKING LOT OF A GAS STATION. WE CHECKED THE COOLANT RECOVERY TANK, IT WAS EMPTY. INSPECTED THE ENGINE FAN, IT WAS OPERATING NORMALLY. WAITED 1 1/2 HRS TO LET ENGINE COOL DOWN. REMOVED RADIATOR CAP. RADIATOR WAS DRY. I ASKED THE GAS STATION FOR THE RECOMMENDED BRAND 'DEX-COOL'. FORTUNATELY, THEY DIDN'T CARRY THAT BRAND. (THE REPORTS I'VE READ TODAY, INDICATE BRAND DEX-COOL COOLANT IS THE #1 CAUSE IN GASKET CORROSIONS, IT EATS PLASTIC. ADDED A 50/50 COOLANT AND ARRIVED HOME WITHOUT FURTHER INCIDENT. THE FOLLOWING MORNING I TOOK MY VEHICLE TO A REPUTABLE MECHANIC. AFTER GIVING HIM A VERY BRIEF DESCRIPTION OF WHAT WE'D EXPERIENCED THE EVENING PRIOR, HE IMMEDIATELY STOPPED ME IN MID-SENTENCE AND SAID "VICKIE, YOU DON'T EVEN HAVE TO FINISH TELLING ME. I KNOW EXACTLY WHAT THE PROBLEM IS. IT'S COMMON FOR THIS ENGINE IN CHEVY'S FROM 1996 - 1999 TO LEAK COOLANT FROM THE INTAKE MANIFOLD NEAR THE REAR FIREWALL" HE WENT ON TO SAY, THAT THEIR SERVICE CENTER HAS HAD MANY CUSTOMERS COME IN WITH THE SAME COMPLAINT FREQUENTLY. HE ESTIMATED THE COST TO REPLACE THE INTAKE MANIFOLD GASKET IS BETWEEN $250 - $300. IF THIS IS SUCH A COMMON PROBLEM, THEN GM SHOULD NOT ONLY BE REQUIRED TO NOTIFY THE OWNERS, BUT SHOULD ASSIST IN THE COST TO REPLACE THE DEFECTIVE GASKETS. THE MECHANIC ALSO STATED, IF THE FLUID ENTERS THE ENGINE, WHICH COULD VERY WELL HAPPEN, THEN THE ENGINE WOULD LOCK-UP. THIS IS A SAFETY ISSUE, AND CAN EASILY BE PREVENTED. NEED THERE BE A FATALITY BEFORE GM VOLUNTARILY NOTIFIES THE OWNERS AND RECTIFY THIS PROBLEM? I DEMAND THAT GM INFORM CURRENT OWNERS OF THIS PROBLEM, REIMBURSE OWNERS WHO'VE ALREADY PAID TO HAVE THEIR VEHICLES REPAIRED, AND FINALLY, STOP RECOMMENDING THE USE OF DEX-COOL BRAND COOLANT IN THE OWNERS MANUAL!!! *AK

350 CID ENGINE THREW ROD AT 69,000 MILES. REPLACED WITH NEW MR GOODWRENCH ENGINE. NEW ENGINE STOPS MYSTERIOUSLY ON HIGHWAY AFTER ABOUT 300 MILES. RESTARTS EASILY BEFORE IT COASTS TO A STOP. ONE TIME IT HAD TO SIT NEARLY HALF AN HOUR BEFORE RESTARTING. DEALER CANNOT FIX THE PROBLEM.*AK

AIR CONDITIONING MANIFOLD HOSE IS BROKEN ON 1999 CHEVROLET TAHOE - EXTENDED WARRANTY DOES NOT COVER REPLACEMENT. ACCORDING TO TWO MECHANICS CONTACTED - THEY ARE APPARENTLY A FREQUENT REPAIR MADE ON THIS VEHICLE. ONE OF THE TWO MECHANICS SPOKEN TO WAS IN THE PROCESS OF REPAIRING THE VERY SAME ITEM AT THE TIME OF THE PHONE CALL.*AK

THE ENGINE STALLED AND THE FUEL INJECTORS HAVE BEEN REPLACED TWICE. PLEASE PROVIDE FURTHER DETAILS. *NLM

COMPOSITE MANIFOLD IS LEAKING, CAUSE UNKNOWN. DEALER NOTIFIED. *AK

THE MANIFOLD LEAKED WATER INTO THE ENGINE. THE DEALER HAS BEEN MADE AWARE OF THE PROBLEM. PH SCC

THE HEATER HOSE IS ATTACHED AT THE INTAKE MANIFOLD WITH A QUICK-CONNECT FITTING THAT IS MADE OF POT METAL. WHEN THIS FAILS (AND IT IS INEVITABLE DUE TO THE TYPE OF METAL USED) THE ENGINE LOSES ALL COOLANT AND LEAVES YOU STRANDED. THERE IS NO "QUICK REPAIR" FOR THIS FAILURE. OLDER ENGINES HAD A CONNECTOR INTO THE INTAKE MANIFOLD MADE OF STEEL OR BRASS WHICH WAS MORE RELIABLE AND USUALLY DID NOT BREAK OFF FLUSH WITH THE MANIFOLD. NLM

EXHAUST PIPE FELL OFF WHILE DRIVING. PIPE HAS BEEN REPAIRED BY DEALER SEVERAL TIMES AND CONTINUES TO FALL OFF. CONSUMER IS CONCERNED ABOUT EXHAUST FUMES WHEN OPERATING VEHICLE. ALSO, VEHICLE WILL STALL INTERMITTENTLY WHILE DRIVING.*AKTHE CLUTCH ASSEMBLY WAS ALSO REPLACED. THE ENGINE STALLS INTERMITTENTLY. THERE IS A NOISE EMMITING FROM THE FUEL PUMP. *JG

THE VEHICLE REPEATEDLY STALLS (WITHOUT WARNING) WHEN THE OUTSIDE TEMPERATURE REACHES 75 DEGREES OR HIGHER.*AK

THERE IS A POPPING SOUND COMING FROM UNDERNEATH THE VEHICLE. THE DEALER DETERMINED THAT THE PLASTIC FUEL TANK IS EXPANDABLE AND CAUSES THIS POPPING SOUND. NLM DEALER REMEDIED PROBLEM AND FOUND THE EXHAUST SYSTEM TO BE THE PROBLEM. *SLC

BAD ENGINE I WOULD LIKE GMC TO BUY IT BACK.GENERAL MOTORS EXECUTIVE GROUP. *AK

ALL THE ENGINE OIL LEAKED OUT OF THE ENGINE IN A SPAN OF FIFTEEN MINUTES DURING A THREE MILE DRIVE. NLM

ENGINE JUST STOPS RUNNING WITHOUT WARNING OR SYMPTOMS AS IF THE KEY WERE TURNED OFF. STARTS AGAIN WITHOUT PROBLEM.. NO WARNING LIGHTS ON DASH EXCEPT BATTERY SYMBOL AT TIME OF STALL. COULD BE FATAL IF PASSING ON 2 LANE.. EXTREMELY DANGEROUS ON FREEWAY. COUNTLESS HOURS TRYING TO LOCATE PROBLEM TO NO AVAIL... I TRADED THE CAR. UNSAFE TO DRIVE.. WORRIED IT WILL BE SOLD WITHOUT BEING FIXED. *AK

PINION BEARING FAILED AT LESS THAN 2000 MILES. DRIVERS SIDE DOOR MIS-ALIGNED. BAD SEALS AT CONNECTIONS FOR TRANMISSION COOLIN GLINES. CLUNK WHEN ACCEL. FROM STOP AND SHIFTING HARD. REOCCURRING NOISE IN PASSENGER SIDE DASHBOARD. REOCCURRING FAN TYPE NOISE UNDER HOOD. REOCCURRING FAILURE OF EXHAUST GASKETS.

O2 SENSOR FAILED AND REPLACED, SERVICE ENGINE SOON LIGHT STAYS ON AFTER FIXED. YH