2004 Chevrolet Tahoe
Problems, recalls and owner-reported issues
Electrical system is the leading concern among 467 owner complaints filed for this model year. This is the 6th highest complaint count among 26 Tahoe model years with reports.
Of the 2004 reports, 25 involved a crash and 7 involved a fire. 24 people were injured and 1 person died.
What owners report most often
Recalls and investigations
Wheels, hubDec 17, 2007
CERTAIN FEDERAL-MOGUL REPLACEMENT WHEEL HUB ASSEMBLIES WITH THE BRAND NAMES: NATIONAL, CARQUEST P/NOS. 515020, 515021, 515025, 515053, 515054, 515059, AND 515060, SHIPPED BETWEEN JANUARY 23, 2006, AND DECEMBER 20, 2007, SOLD FOR LIGHT DUTY AND MEDIUM DUTY TRUCKS. THE INBOARD RETENTION NUT USED TO MAINTAIN HUB BEARING ASSEMBLY CAN LOOSEN RESULTING IN AN ABS LIGHT INDICATION, NOISE, AND/OR WHEEL SEPARATION.
WHEEL SEPARATION CAN RESULT IN A VEHICLE CRASH.
FEDERAL-MOGUL WILL NOTIFY CUSTOMERS AND WILL REPLACE THE HUB ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 7, 2008. OWNERS CAN CONTACT FEDERAL-MOGUL TOLL-FREE AT 877-489-6659.
Campaign 07E106000 on NHTSA.gov
Fuel system, gasolineMay 19, 2006
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
Campaign 06E043000 on NHTSA.gov
Exterior lightingMar 23, 2006
CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 2006. OWNERS MAY CONTACT PRO-A MOTORS AT 323-838-2988.
Campaign 06E026000 on NHTSA.gov
Seat belts, rear/otherApr 22, 2005
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT TO RIDE UP ON AN OCCUPANT'S ABDOMEN INSTEAD OF FITTING LOW AROUND THEIR HIPBONES, AND THEREFORE, CAN EXPOSE THEM TO MORE RISK OF ABDOMINAL AND INTERNAL ORGAN INJURY.
DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES SHOULD BE FOLDED OVER AND SECURED WITH A RETAINER FREE OF CHARGE. THE RECALL BEGAN ON JULY 21, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR HUMMER AT 1-800-732-5493.
Campaign 05V163000 on NHTSA.gov
Service brakes, hydraulicFeb 4, 2004
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING. UNDER CERTAIN DRIVING CONDITIONS, A FRACTURED SEAL MAY REQUIRE A SLIGHT INCREASE IN THE APPLIED BRAKE PEDAL EFFORT TO ACHIEVE THE SAME VEHICLE DECELERATION RATE AS PRIOR TO THE SEAT FRACTURE.
DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339; CHEVROLET AT 1-800-630-2438; GMC AT 1-866-996-9463; OR HUMMER AT 1-866-486-6376.
Campaign 04V045000 on NHTSA.gov
Representative owner complaints: engine
46 reports, newest first. Show all
Other or unspecified, Engine, Jul 28, 2020
MY2004 CHEVY TAHOE LT WAS MOVING WHEN THE REAR VIEW MIRROR FELL OFF THE WINDSHIELD. ALSO THE EXHAUST MANIFOLD BOLTS HAVE BROKEN OFF WHICH CAUSE BAD GAS MILEAGE AND SLOW TAKE OFFS.
Engine, Mar 28, 2019, fire
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT TEN MINUTES AFTER THE VEHICLE WAS PARKED, IT CAUGHT FIRE. THE FIRE DEPARTMENT WAS CALLED AND EXTINGUISHED THE FIRE. THE CONTACT WAS UNSURE AS TO WHERE THE FIRE ORIGINATED. A FIRE REPORT WAS FILED. THERE WERE NO INJURIES. THE VEHICLE WAS TOWED TO A TOW FACILITY. IT WAS UNKNOWN YET IF THE VEHICLE WAS DESTROYED. THE VEHICLE WAS NOT DIAGNOSED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.
Engine, Dec 7, 2018
THE REAR MAIN DEAL WENT BAD IN ALMOST ALL OF THE TRUCKS AND SUVS WITH A 4.8L OR 5.3L ENGINE IN THEM WHERE THE POUR OIL EVERYWHERE AND THIS COULD BE CONSIDERED AN EPA VIOLATION AND A FIRE HAZARD IT NEEDS TO BE RECALLED ASAP SO WE CAN SAVE LIVES AND SAVE THE ENVIRONMENT
Engine, Jul 7, 2016
TL* THE CONTACT OWNS A 2004 CHEVROLETTAHOE. WHILE DRIVING APPROXIMATELY 35 MPH, THE ENGINE STALLED WITHOUT WARNING. THE CONTACT MANAGED TO PULL OVER AND STOP THE VEHICLE. THE VEHICLE WAS ABLE TO RESTART ON THE SECOND ATTEMPT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 158,498.
Engine, Jun 20, 2016
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. WHILE DRIVING 40 MPH, THE WARNING LIGHT ILLUMINATED A "LOW POWER MODE" MESSAGE. THE CONTACT STATED THAT STEAM WAS EMITTING FROM UNDER THE HOOD. THE CONTACT PULLED OVER TO THE SIDE OF THE ROAD AND LIFTED THE HOOD FOR THE VEHICLE TO COOL OFF. THE VEHICLE WAS TOWED TO THE DEALER TO BE DIAGNOSED. THE CONTACT STATED THAT THE CYLINDER HEAD CRACKED AROUND THE OIL DRAIN HOLES. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 115,000. UPDATED 09/29/16*LJ UPDATED 06/15/18*JB
Engine, Feb 29, 2016
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT THE VEHICLE USED EXCESSIVE ANTI FREEZE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE VEHICLE HAD A DEFECTIVE CASTECH HEAD THAT LEAKED COOLANT. THE TECHNICIAN ALSO DIAGNOSED THAT THE CASTECH HEADS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 88,000. THE VIN WAS NOT PROVIDED.
Engine, Feb 9, 2016
THE EXHAUST MANIFOLD BOLTS THAT THREAD INTO THE CYLINDER HEADS HOLDING THE CAST IRON EXHAUST MANIFOLDS IN PLACE ONTO THE HEADS BREAK OFF UNDER NORMAL ROAD CONDITIONS. THE BOLTS BREAK OFF AND WERE CAUSING AN EXHAUST LEAK. MY VEHICLE'S EXHAUST WAS COMING INSIDE THE VEHICLE MAKING OCCUPANTS ILL. THE STEEL MANIFOLD BOLTS ARE UNDERSIZED FOR THE APPLICATION, AND BEING USED ON IRON MANIFOLDS MATING TO ALUMINUM CYLINDER HEADS. I HAVE TO PAY THE $1000+ REPAIR COST TO FIX AN APPARENT MANUFACTURING FAILURE THAT SHOULD BE RECALLED. NO ONLY DO THE BROKEN BOLTS CAUSE EXHAUST LEAKS AND NOISE, BUT PUTS THE VEHICLE IN THIS CONDITION AS A POSSIBLE FIRE RISK.
Electronic stability control (ESC), Engine, Dec 16, 2015
WHEN YOU PRESS ON THE GAS PEDAL UNDER NORMAL CONDITIONS, THE STABILITRACK SENSORS KICKS IN FOR NO REASON AND SLOW DOWN THE VEHICLE NEARLY CAUSING AN ACCIDENT. I HAD THIS REPAIRED ONCE BUT AFTER A FEW MONTHS CONTINUED TO DO IT AGAIN. SEEMS LIKE A SAFETY ISSUE TO ME. IT HAPPENS MOREOFTEN IN THE COLD
Engine, Sep 4, 2015
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT THE VEHICLE WAS USING TOO MUCH ANTIFREEZE. THE DEALER DIAGNOSED THAT THE CAST TECH HEADS NEEDED TO BE REPLACED BECAUSE THEY LEAKED ANTIFREEZE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 102,000.
Engine, Jul 19, 2015
EXHAUST MANIFOLD BOLTS BROKEN OFF AT REAR OF ENGINE ON BOTH SIDES.
Engine, Mar 26, 2015
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. WHILE DRIVING 25 MPH, THE VEHICLE STALLED WITHOUT WARNING AND CAUSED ALL THE INSTRUMENT PANEL LIGHTS TO ILLUMINATE. THE FAILURE RECURRED MULTIPLE TIMES. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT PROVIDED. THE FAILURE MILEAGE WAS 126,000.
Engine, Mar 13, 2015
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 40 MPH, THE ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT DISCOVERED THAT THE ENGINE OVERHEATED BECAUSE THE COOLANT RESERVOIR WAS EMPTY. THE CONTACT DISPENSED COOLANT INTO THE RESERVOIR. THE VEHICLE WAS TAKEN TO THE DEALER, WHO INFORMED THAT THE ENGINE BLOCK AND THE CYLINDER HEAD WERE IMPROPERLY DESIGNED AND CONTRIBUTED TO THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 92,000. THE VIN WAS NOT AVAILABLE.
Engine, Mar 4, 2015
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. WHILE DRIVING AT APPROXIMATELY 60 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE FAILED TO RESTART AND WAS TOWED TO THE CONTACT'S RESIDENCE WHERE AN INDEPENDENT MECHANIC DIAGNOSED THAT THE FUEL INJECTORS AND SPARK PLUGS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 145,000.
Engine, Dec 9, 2014
I GOT AN ENGINE LIGHT ABOUT BEGINNING OF NOVEMBER CODE WAS P0430, DEFINITION IS "CATALYST SYSTEM EFFICIENCY BANK 2", THIS COULD BE CAUSED BY HIGH ENGINE OIL OR COOLANT USAGE. KNOWING THIS I CHECK MY TAHOE FOR COOLANT LEAKS, NO VISIBLE LEAKS AT ALL, I TAKE THE COVER OFF THE CYLINDER HEAD AND I FIND A LOT OF SLUDGE, NOW I KNOW WHERE THE ANTIFREEZE IS GOING. MY TAHOE IS STILL RUNNING BUT WITH THE ENGINE LIGHT ON AND WITH A MISFIRE DUE TO THE POROUS CYLINDER HEAD, DON'T KNOW HOW MUCH MORE IS GOING TO LAST AND CAN'T REALLY STOP THE TAHOE BECAUSE IT'S A DAILY DRIVER. *TR
Engine, Dec 9, 2014, crash
VEHICLE BEGINS TO IDLE ROUGH, NOTICED TAHOE CONSUMES COOLANT AT AN ABNORMAL RATE, APPROXIMATELY 1GAL/MONTH!! OUR LOCAL CHEVY DEALER CODED FOR FLEX FUEL SENSOR REPLACEMENT $1400! NO CHANGE IN CONDITION OF VEHICLE. IDLE IS NOW VERY VERY LOW! MY WIFE PICKS UP OUR KIDS, TAHOE WOULD STOP RUNNING WHILE MAKING A TURN AT AN INTERSECTION!!! NO POWER = NO POWER STEERING!! SHE BARELY AVOIDS AN ACCIDENT!! SHE ALONG WITH THE KIDS WILL NOT RIDE IN THE (FAMILY CAR) THE TAHOE UNTIL IT IS FIXED. DON'T TRUST OUR LOCAL CHEVY DEALERSHIP, DUE TO LACK OF INTEGRITY!! WE WERE PROUD AND LOYAL CHEVY OWNERS, WE ALSO OWN A 91 GMC SIERRA 1500 5.7L WITH 232000 MI. AND A 98 CHEVY 1500 V-6 113590 MI PICK-UP, BOTH STILL RUNNING VERY STRONG WITH ABSOLUTELY NO ISSUES! RESEARCHED THIS ISSUE, DEFECTIVE CASTECH HEADS, GM IS AWARE OF THIS PROBLEM, TSB 06-06-01-019B, VERY DISAPPOINTED TO STATE THE LEAST OF HOW GM IS HANDLING THIS SITUATION. COMPLAINED TO GM CORPORATE, THEY STATED THEY WILL NOT BE ABLE TO ASSIST AND THAT WE WOULD HAVE TO TAKE IT TO OUR LOCAL DEALERSHIP WHERE INTEGRITY RUNS VERY THIN!! I AM A PROUD MSGT IN THE USAF, AND FULL TIME FIREFIGHTER, IF WE CANT TRUST "THE HEARTBEAT OF AMERICA," WHO THE HELL CAN WE TRUST!! THIS PROBLEM HAS COST PUT OUR FAMILY IN THE HOLE FOR $3800 NOW AND IT LOOKS LIKE IF WE MOVE FORWARD TO FIX OURSELVES WE WILL BE IN EXCESS OF $5800 FOR THE HEADS TO BE SERVICED OR $8600 FOR NEW MOTOR SWAP!!! GM NEEDS TO TAKE RESPONSIBILITY RECALL THIS AND GET THIS ISSUE SQUARED AWAY AND MAYBE SALVAGE WHAT IS LEFT OF A LOYAL GM SUPPORTER. *TR
Electrical system, Engine, Fuel/propulsion system, Sep 24, 2014
VEHICLE REGISTERED "REDUCED ENGINE POWER" WHILE I WAS ON THE HIGHWAY, I WAS ABLE TO GET TO THE SHOULDER, ONLINE RESEARCH SHOWED NUMEROUS INCIDENTS INVOLVING THE THROTTLE BODY SENSOR AND THE WIRES CRIMPING, THERE WAS SOMETHING ABOUT THE WIRING HARNESS BEING COVERED BY GM BUT IT DOES NOT APPEAR ON A RECALL LIST. *TR
Engine, May 26, 2014
THE ENGINE CYLINDER HEADS FOR THE 5.3L GM MOTORS BUILT BY CASTECH LEAK COOLANT INTO THE ENGINE CAUSING ENGINE OVERHEAT AND INTERNAL ENGINE FAILURES. GM HAS ISSUED A TECHNICAL BULLETIN #060601019B TO ADDRESS THE ISSUE AND DIAGNOSE THE ISSUE. GM WILL NOT OFFER CUSTOMERS ANY FINANCIAL HELP IN THE REPLACEMENT OF THE DEFECTIVE PARTS. THIS ISSUE EFFECTS THE SAFETY OF THE VEHICLE AND THE SAFETY OF THE PERSONS IN AND AROUND THE VEHICLE. THE FOULED ENGINE OIL CAUSES THE LIFTERS TO FAIL, THE OIL PRESSURE TO DROP AND THE ENGINE TO LOCK UP DUE TO LACK OF LUBRICATION BY THE FOULED OIL AND THE DRIVER HAS NO WAY OF KNOWING THIS IS HAPPENING AS THERE IS NO EXTERNAL INDICATORS. *TR
Engine, Mar 31, 2014
DROVE VEHICLE OUT OF TOWN ON CHRISTMAS HOLIDAY TRIP. AFTER BEING PARKED OVERNIGHT STARTING VEHICLE NEXT AM BIG CLOUD OF WHITE GRAY SMOKE UPON START. COOLANT LOW. REFILLED COOLANT AND DROVE HOME. NOW VEHICLE CONSTANTLY LEAKS COOLANT WITH NO APPARENT LEAK UNDER VEHICLE OR IN ENGINE COMPARTMENT. OIL SLUDGES BETWEEN OIL CHANGES. WHITE SMOKE AFTER A 30 MIN DRIVE EVERY TIME. GM HAS BULLETIN OUT FOR BAD HEADS INSTALLED AND THE PART NUMBER AND SYMPTOMS MATCHED CRACKED HEADS ON MY VEHICLE. DEALER AWARE AND SEES OFTEN NOT ONLY IN THIS VEHICLE BUT ALL 5.3 ENGINES FROM A CERTAIN TIME SPAN. DEALER STATES WILL ONLY FIX AT COST OF CONSUMER EVEN THOUGH BULLETIN IS KNOWN. THIS COULD CAUSE AN OVERHEAT SITUATION OR ENGINE FAILURE AT A BAD TIME OR WORSE. WHY ARE THEY NOT MADE TO STAND BEHIND THIS WHEN PROBLEM IS KNOWN? A QUICK SEARCH ON GOOGLE WILL OVERWHELM A COMPUTER WITH SO MANY ACCOUNTS OF THIS PROBLEM. *TR
Electrical system, Engine, Mar 12, 2014, fire
I WAS DRIVING DOWN THE ROAD WHEN MY 2004 CHEVROLET TAHOE CAUGHT ON FIRE BURNING TO THE GROUND. THE REPORT FROM THE FIRE DEPARTMENT SAYS THAT THE FIRE STARTED DUE TO FAILURE OF EQUIPMENT OR A HEAT SOURCE AND THAT THERE WERE NO HUMAN FACTORS CONTRIBUTING TO THE FIRE.WHILE LOOKING ON THE INTERNET I HAVE FOUND AT LEAST ONE OTHER PERSON THAT HAS ENCOUNTERED THE SAME PROBLEM WITH HER 2004 CHEVROLET TAHOE. *TR
Engine, Mar 8, 2014
THE TAHOE HAS KNOWN FAULTY CASTECH CYLINDERS WHICH CAUSE COOLANT TO LEAK WITH NO EXPLANATION. OVER THE WINTER I HAVE HAD UNEXPLAINED COOLANT/ANTIFREEZE ISSUE WITH NO FOUND LEAKS (COOLANT WOULD BE BONE DRY AFTER A COUPLE WEEKS OF FILLING IT). I WAS TOLD THE ISSUE IS PROBABLY CAUSED BY THE FAULTY POROUS CYLINDER HEADS MADE BY CASTECH INSTALLED IN GM'S FROM 2001 - 2006. THIS TAHOE HAS A TOTAL OF 80,000 MILES NOW AND EXPERIENCING ISSUES DUE TO KNOWN FAULTY PARTS INSTALLED BY GM. CHEVROLET HAS TO BE AWARE OF THE DANGER THEY ARE PUTTING THEIR CUSTOMERS IN BY NOT HAVING A RECALL OF A FAULTY PART LOCATED IN THE ENGINE. HOW THERE HAS NOT BEEN A RECALL I DO NOT UNDERSTAND. HOW CHEVROLET EXPECT THE CUSTOMER TO PAY 3-4K TO REPLACE THEIR FAULTY HEAD IS LUDICROUS. *TR
Engine, Feb 19, 2014
GM USED DEFECTIVE ENGINE CYLINDER HEADS FOR MILLIONS OF 4.8/5.3 LITER V8 ENGINES FROM 2001-2006. THE CYLINDER HEADS CRACK CAUSING COOLANT TO FLOW INTO THE OIL AND CAUSE EXCESSIVE SLUDGE TO FORM AND CAUSE ENGINE FAILURE. GM KNOWS ABOUT THE PROBLEM AND ISSUED TSB TO IT'S SERVICE DEPARTMENTS:1 INFORMATION ON GRADUAL COOLANT LOSS OVER TIME WITH NO EVIDENCE OF LEAK FOUND #06-06-01-019B - (06/12/2007). THESE DEFECTIVE CYLINDER HEADS CAN CAUSE OVERHEATING AND COMPLETE ENGINE FAILURE. *TR
Engine, Jan 8, 2014
CYLINDER HEADS ARE LEAKING COOLANT INTO THE ENGINE. THIS CAUSES EXCESSIVE LIFTER NOISE WHEN FIRST STARTED AFTER THE ENGINE HAS BEEN SITTING FOR SEVERAL HOURS AND REQUIRES COOLANT TO BE ADDED ALMOST DAILY. THIS CONDITION WILL EVENTUALLY RUIN THE ENGINE REQUIRING THE ENGINE TO BE REPLACED. THIS PROBLEM IS KNOWN BY GM TO BE A DEFECT IN THE CASTING PROCESS, YET NO HELP IS OFFERED BY GM TO FIX THE PROBLEM. *TR
Engine, Jun 25, 2013
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT THERE WAS A COOLING FLUID LEAK, AND SHE HAD TO ADD COOLING FLUID CONSISTENTLY. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC, WHO STATED THAT THERE WAS COOLING FLUID LEAKING INTO THE OIL PAN IN THE ENGINE. THE FAILURE WAS REPORTED TO THE MANUFACTURER WHO ACKNOWLEDGED THERE WAS A TECHNICAL SERVICE BULLETIN, BUT REFUSED TO PROVIDE ASSISTANCE FOR THE REPAIR. THE FAILURE MILEAGE WAS 84,000. THE CURRENT MILEAGE WAS 86,000.
Engine, Jun 11, 2013
ENGINE STARTED WITH A TICKING NOISE WHEN COLD. WOULD GO AWAY AFTER ENGINE WARMED UP. UPON INSPECTION FOUND 2 EXHAUST MANIFOLD BOLTS SHEARED ON #7 CYLINDER, 1 BROKEN ON #8. TICKING COMING FROM EXHAUST LEAK ON #7. UPON RESEARCH FOUND THAT THIS IS A COMMON ISSUE WITH THESE ENGINES. WHY IS THERE NO RECALL OR SAFETY NOTICE AS IT PRESENTS A REAL HAZARD FOR FIRE AND EXHAUST FUMES ENTERING PASSENGER COMPARTMENT. *TR
Engine, May 10, 2013
TL* THE CONTACT OWNS A 2004 CHEVROLET TAHOE. THE CONTACT STATED THAT THE CYLINDER HEADS FRACTURED ON THE VEHICLE AND THE ENGINE OVERHEATED. THE CONTACT HAD THE VEHICLE INSPECTED BY A MECHANIC AND IT WAS FOUND THAT COOLANT LEAKED INTO THE ENGINE. THE CONTACT WAS TOLD THAT IF THIS CONTINUES THE ENGINE WILL EVENTUALLY FAIL. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 115,000 AND THE CURRENT MILEAGE WAS 117,000. *TR