2004 Chevrolet Silverado Engine Problems

EXHAUST MANIFOLD BOLT ON DRIVER SIDE AT REARMOST PART OF ENGINE HAS BROKEN OFF. *TR

NHTSA ID

10659741

Incident

Oct 1, 2014

Mileage

113,250 mi

AFTER DISCOVERING AN EXHAUST LEAK PERFORMED A VISUAL INSPECTION OF THE ENGINE. I HAVE A 2004 SILVERADO WITH THE 6.0L. I AVE DISCOVERED THAT THERE ARE AN ABUNDANCE OF THESE VEHICLES OUT THERE WITH THE SAME PROBLEM. THIS IS CAUSING EXHAUST FUMES TO ENTER THE ENGINE COMPARTMENT AND CAB OF THE VEHICLE. *TR

NHTSA ID

10650873

Incident

Oct 7, 2014

Mileage

100,000 mi

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE CHECK ENGINE LIGHT ILLUMINATED AND THE VEHICLE SUDDENLY STALLED. THE CONTACT INDICATED THAT AFTER RESTARTING THE ENGINE THE VEHICLE OPERATED AS NORMAL. THE CONTACT ALSO INDICATED THAT THE PASSENGER SIDE SEAT BELT HAD MALFUNCTIONED AND THE PASSENGER WAS UNABLE TO MOVE WHILE THE SEAT BELT WAS IN THE LOCKED POSITION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE DEFECT BUT NO SOLUTION WAS OFFERED. THE FAILURE MILEAGE WAS 130,000.

NHTSA ID

10607510

Incident

Jun 1, 2010

Mileage

130,000 mi

I HAVE THE CASTECH HEADS ON MY TRUCK THAT ARE KNOWN FOR GETTING CRACKS IN THEM AND LEAKING ANITIFREEZE INTO THE ENGINE. THE WAY IT SOUNDS THERE SHOULD OF BEEN A RECALL ON THESE HEADS, THIS ISN'T A NORMAL WEAR AND TEAR DEAL. WHY SHOULD THE CONSUMER PAY FOR THE COST OF REPLACING SOMETHING THAT OBVIOUSLY IS A MANUFACTURER DEFECT SINCE MORE THAN JUST ONE PERSON IS COMPLAINING. IT SEEMS LIKE ALSO THAT GM HAS HELPED A FEW PEOPLE AND THEN TOLD OTHERS THAT THEY CAN'T HELP. *TR

NHTSA ID

10607019

Incident

Jun 30, 2014

Mileage

99,470 mi

2004 CHEVROLET SILVERADO. CONSUMER WRITES IN REGARDS TO FUEL TRANSFER PUMP RECALL NOTICE. *SMD

NHTSA ID

10576641

Incident

Apr 1, 2014

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE VEHICLE WAS BLOWING COLD AIR AND THE DEFROSTER FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THE CYLINDER HEAD HAD CRACKED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE HOWEVER PROVIDED NO FURTHER ASSISTANCE. THE FAILURE MILEAGE WAS 110,000. THE CURRENT MILEAGE WAS 112,000.

NHTSA ID

10510803

Incident

Feb 1, 2013

Mileage

110,000 mi

ENGINE LOST POWER IN HEAVY TRAFFIC AT HIGHWAY SPEED DUE PREMATURE FAILURE OF DIESEL FUEL INJECTOR. COME TO FIND OUT INJECTOR HAVE KNOWN DEFECT AND HIGH FAILURE RATE. *TR

NHTSA ID

10509798

Incident

Apr 27, 2013

Mileage

119,000 mi

I WENT OUT TO LEAVE FOR A MEETING AND STARTED MY TRUCK. I HEARD A TICKING NOISE THAT I HAD NOT HEARD PRIOR TO THIS MORNING. I OPENED THE HOOD TO INVESTIGATE THE CAUSE OF THE TICKING AND DISCOVERED ON THE LEFT BANK ONE OF THE EXHAUST MANIFOLD BOLTS WAS MISSING THE HEAD. I THEN WENT AROUND TO THE RIGHT BANK AND NOTICED THAT THE EXHAUST MANIFOLD WAS BROKEN COMPLETELY ABOUT MID WAY OF THE MANIFOLD. I HAVE OWNED THIS VEHICLE SINCE IT WAS NEW OFF THE DEALERSHIP AND HAVE HAD VERY LITTLE ISSUE WITH IT UNTIL THIS ISSUE POPPED UP. I HAVE DONE SOME RESEARCH AND DISCOVERED THAT THIS IS A MAJOR PROBLEM AFFECTING CHEVROLET AND GM VEHICLES WITH 8 CYLINDER ENGINES. THIS VEHICLE IS USED AS A DAILY DRIVER AND IS NOT USED FOR COMMERCIAL TOWING, NOR IS IT USED FOR TOWING ON A REGULAR BASIS. *TR

NHTSA ID

10470329

Incident

Aug 7, 2012

Mileage

160,000 mi

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE VEHICLE EXHIBITED AN ABNORMAL KNOCKING FROM THE ENGINE. THE DEALER DIAGNOSED THAT FUEL WAS LEAKING INTO THE ENGINE ABNORMALLY. THE MANUFACTURER WAS CONTACTED BUT DENIED ANY ASSISTANCE WITH REPAIRS TO THE FAILURE. THE VEHICLE WAS REPAIRED BUT THE FAILURE RECURRED. THE FAILURE MILEAGE WAS 70,000 AND THE CURRENT MILEAGE WAS 150,000. THE VIN WAS NOT AVAILABLE.

NHTSA ID

10425757

Incident

Sep 15, 2009

Mileage

70,000 mi

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO DIESEL. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WOULD OVERHEAT. THE FAILURE WOULD ONLY OCCUR WHEN TRAVELING ON FLAT ROAD SURFACES, UPHILL OR WHEN PULLING A TRAILER. THE CONTACT WOULD SHUT OFF THE ENGINE UNTIL THE ENGINE WAS COOLED IN ORDER TO DRIVE THE VEHICLE ANY FURTHER. IN ADDITION, THE CONTACT STATED IF HE WOULD DRIVE WHILE THE VEHICLE WAS RUNNING HOT, IT WOULD STALL. THE DEALER ADVISED THE VEHICLE WAS NOT UNDER RECALL AND REPAIRS WOULD BE AT THE EXPENSE OF THE OWNER. THE APPROXIMATE CURRENT MILEAGE IS 143,000. UPDATED 06/29/10 *BF THE CONSUMER STATED THE VEHICLE OVERHEATED WHEN TOWING A TRAILER ON A LONG GRADE HILL. UPDATED 07/06/10.*JB

NHTSA ID

10324663

Incident

Aug 1, 2009

Mileage

100,000 mi

HAD TWO CHEVY SILVERADOS THAT DEVELOP INTAKE AND WATER PUMP GASKET FAILURE ON A 4.3 LITER ENGINE. BOTH DEVELOP COOLANT LEAK THROUGH THE GASKET. THE LATEST WAS IN NOVEMBER ON MY 2004 CHEVY SILVERADO. UPON CHECKING THE OWNERS MANUAL IN REGARDS TO THE DEXCOOL COOLANT IT CLEARLY STATES THAT THIS COOLANT WILL BURN IF SPILL ON A HOT ENGINE. IT THAT THE CASE THEN WHY CAN IT BURN IT THE INTAKE GASKET FAIL AND COOLANT IS LEAKING IN THE ENGINE. I HAD A 2000 CHEVY SILVERADO WITH INTAKE GASKET FAILURE AND ALSO A 2004 CHEVY WITH GASKET FAILURE. BOTH VEHICLES I HAD REPAIRED MY CONCERN IT THE GASKET FAILURE ON THESE GM PRODUCTS VEHICLE THAT NO ONE AT CHEVROLET SEEMS TO CARE. BOTH VEHICLES GASKET FAILURE OCCURRED AROUND THE MID 60,000 MILES RANGE. I AM CONCERN ABOUT THE FAILURE OF THESE GASKETS THAT CAUSING THE COOLANT TO LEAK. APPARENTLY THERE IS A PROBLEM WITH THE GASKET OR THE COOLANT THAT CAUSING THE GASKET TO FAIL. I WOULD LIKE SOMEONE TO CHECK INTO THE PROBLEM OF THE GASKET FAILURE ON GM PRODUCTS. ESPECIALLY THE 4.3 LITER ENGINES. I CONCERN THAT ACCORDING TO THE OWNERS MANUAL THE DEXCOOL COOLANT CAN BURN ON A HOT ENGINE THEN CAN IT CAUSE A FIRE ON THE ENGINE WHILE DRIVING IF THE INTAKE MANIFOLD GASKETS AND THE WATER PUMP GASKET KEEPS FAILING. I HAD TWO DIFFERENT YEAR MODEL CHEVY SILVERADO WITH 4.3 LITER ENGINE, A 2000 AND 2004 SILVERADOS WHERE BOTH ENGINE GOT AROUND 65,000 MILES AND THE GASKETS FAILED ON BOTH ENGINE. NO ONE CAN EXPLAIN HOW THIS OCCURRED. BUT THERE MUST BE DEFECT IN THE GASKET DESIGN OR THE COOLANT IS CAUSING THE PROBLEM. *TR

NHTSA ID

10253043

Incident

Nov 21, 2008

Mileage

64,659 mi

ENGINE NOISE AT IDLE. TICKING WHICH SOUNDS LIKE LIFTERS OR INJECTORS HANGING UP. *TR

NHTSA ID

10224411

Incident

Feb 14, 2007

Mileage

37,850 mi

STARTING AT AROUND 50,000 MILES AND DURING ROUTINE DRIVING CONDITIONS I NOTICED A SCENT OF ANTI-FREEZE EMANATING FROM UNDER HOOD. AT FIRST UNABLE TO LOCATE LEAK AND CONTINUED TO DRIVE VEHICLE. AT AROUND 69,000 MILES LEAK BECAME APPARENT AND WAS LEAKING FROM THE WATER PUMP. DEALER ASSESSED THE PROBLEM AND PROCEEDED TO INFORM ME THE REPAIR WOULD BE $670. FORTUNATELY I HAD AN EXTENDED WARRANTY UP TO 75,000. VEHICLE NOW FIXED AND OPERATING PROPERLY. *TR

NHTSA ID

10224409

Incident

Mar 15, 2008

Mileage

50,000 mi

TL* - THE CONTACT OWNS A 2004 CHEVROLET SILVERADO Z71. THE CONTACT STATED THAT THE SPEEDOMETER DID NOT ACCURATELY REGISTER THE SPEED BEING DRIVEN IN THIS VEHICLE. EVEN WHEN NOT DRIVING THE SPEEDOMENTER REGISTERED A SPEED. THE CONTACT STATED THAT THE ENGINE LIGHT HAS BEEN ON 80% OF THE TIME SINCE HE OWNED THE VEHICLE.*AK UPDATED 2/22/2007 - *NM

NHTSA ID

10180804

Incident

Nov 15, 2006

Mileage

63,000 mi

2004 CHEVROLET SILVERADO STALLED WHILE DRIVING AT 21000 MILES. *TS WHEN THE VEHICLE STALLED, THE DASH READ "REDUCED ENGINE POWER." THE VEHICLE WOULD NOT RE-START, STEERING AND THE BRAKING WAS LIMITED. THE VEHICLE FINALLY RESTARTED BUT THERE WAS NO POWER, THE VEHICLE IDLED ROUGHLY AND WOULD NOT TRAVEL ABOVE 3-5 MILES PER HOUR. THE VEHICLE WAS DIAGNOSED WITH A THROTTLE ACTUATOR CODE. THE THROTTLE ACTUATOR WAS REPLACED. *SC

NHTSA ID

10142083

Incident

Oct 1, 2005

Mileage

21,000 mi

DT: 2004 CHEVROLET SILVERADO. THE CONSUMER STATED THE VEHICLE STALLED WHILE DRIVING ON THE ROAD. THERE WERE NO WARNING LIGHTS THAT COME ON BEFORE THIS HAPPENED. THIS HAS HAPPENED EVERY TIME UNDER 50 MPH. WAS ABLE TO BE PULL OVER THE VEHICLE AND RESTARTED IT IMMEDIATELY. THE DEALERSHIP COULD NOT DUPLICATE THE PROBLEM. WHEN THE VEHICLE WAS RESTARTED IT VOIDED THE CHIPS MEMORY. THIS HAS HAPPENED SIX TIMES. THE CONSUMER HAD THE VEHICLE TOWED TO DEALER,AND THE DEALERSHIP COULD NOT FIND THE CAUSE OF THE PROBLEM. THE CONSUMER SENT CHEVROLET A REGISTERED LETTER WITH THE INFORMATION, THE CLAIM WAS DENIED. THE PROBLEM STARTED ON JUNE 29, 2005, AND THE LAST TIME THIS HAPPENED WAS AUGUST 19, 2005. EVERY TIME THIS HAPPENED THE CONSUMER CALLED THE DEALERSHIP. *AK THE DEALER DETERMINED THERE WAS A LOWER CELL N THE BATTERY AND REPLACED IT BUT THE STALING PROBLEM RECURRED. THE CONSUMER WOULD LIKE FOR THE MANUFACTURER TO BUY BACK THE VEHICLE. *NM

NHTSA ID

10137235

Incident

Aug 19, 2005

Mileage

15,760 mi

LIGHT TICKING NOISE FROM ENGINE FROM ABOUT 30,000 MILES BY 45,000 MILES THE NOISE IS MUCH MORE NOTICEABLE LIKE LIFTERS TAPPING. FAILURE WAS WITH ONE OF THE CAM SHAFT LOBES CHIPPING OFF A SUBSTANTIAL PIECE OF METAL ( BRAKE FAILURE AS OPPOSED TO BEING WIPED ). THE REPAIR HAS NOT YET BEEN COMPLETED BUT WILL REQUIRE NEW CAM SHAFT, LIFTERS, HEAD BOLTS, GASKET KIT. *JB

NHTSA ID

10139625

Incident

Oct 13, 2005

Mileage

46,000 mi

MY '04 CHEVY SILVERADO HD2500 WITH DURAMAX OVERHEATS WHEN TOWING. *JB

NHTSA ID

10132452

Incident

Jul 12, 2005

Mileage

14,000 mi

I OWN A 2004 CHEVY 2500HD WITH A LLY DURAMAX AND THE TRUCKS OVERHEATS EVRYTIME I PULL A TRAILER THAT WEIGHS 2000LBS OR 12000LBS IT DOES NOT MATTER. I THINK YOU NEED TO HELP US OUT THAT OWN THIS MODEL AND YEAR OF TRUCK AND MAKE GM FIX IT. *NM

NHTSA ID

10131870

Incident

Sep 10, 2004

Mileage

4,000 mi

WHILE PULLING MY TRAILER MY TRUCK OVERHEATS AND WHEN IT GETS HOT IT WILL TAKE ALL THE POWER FROM THE MOTOR MAKING A HAZARD AND A SAFETY ISSUE. I HAVE BEEN TAKING IT TO THE DEALER FOR ONE YEAR AND THE SAY NOTHING IS WRONG WITH IT. *NM

NHTSA ID

10131472

Incident

Jul 14, 2005

Mileage

20,000 mi

2004.5 CHEVY SILVERADO 2500 DURAMAX OVERHEATS ON SEVERAL OCCASIONS TO 258 DEG WHILE TOWING 9000LB TRAILER 2 TIMES TRANSMISSIONS HAS GONE TO 270 DEG AND HAS GONE INTO A PROTECTIVE MODE WHILE CLIMBING A HILL CAUSING US TO NEARLY GET REAR ENDED DUE TO NO PLACE TO PULL OVER AND EXTREMELY SLOW SPEEDS TOOK TO DEALER 6 TIMES WITH NO FIX. DEALER REFUSES TO GO ON ROAD TEST AND SAYS VEHICLE IS OPERATING NORMALLY THIS PRESENTS AND IMMEDIATE DANGER DUE TO SLOW SPEEDS, POSSIBILITY OF A FIRE AND THE DAMAGE TO MY TRUCK FROM OVER HEATING. *JB

NHTSA ID

10131186

Incident

Jul 29, 2005

Mileage

1,539 mi

2004.5 LLY 2500HD SILVERADO DURAMAX TOWING 1700 LUND PROSPORT IN ~85 DEGREE AMBIENT. I WAS REQUIRED TO TURN OF THE A/C AND LIMIT THE POWER AS THE ENGINE TEMP CONTINUED TO CLIMB BEYOND 210 AND INTO THE 235-240 DEGREE RANGE. THIS IS A CONSTANT PROBELM WITH THIS ENGINE UNDER MINIMAL LOAD. DEALER HAS NO FIX FOR THIS TRUCK WHICH IS STILL UNDER WARRANTY AND GM KEEPS SAYING THEY ARE WORKING ON THE PROBLEM. IF I CONTINUED OPERATING MY TRUCK AS NORMAL THE ENGINE WOULD SUSTAIN OVERHEATING DAMAGE THUS CAUSING GREAT DAMAGE TO COMPONENTS FURTHER DOWN THE ROAD.

NHTSA ID

10129583

Incident

Jun 9, 2005

Mileage

22,000 mi

WHILE PULLING INSIDE OF THE GARAGE THE CONSUMER APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. THE VEHICLE STOPPED BY HITTING THE HOUSE WALL. THE BRAKING BEFORE THE CRASH CAUSED THE ABS AND THE ENGINE LIGHTS TO APPEAR ON THE DASHBOARD WHICH REMAINED ON. THE CONSUMER WAS ABLE TO DRIVE TO THE DEALER FOR INSPECTION. THE MECHANIC INFORMED THE DRIVER THAT THE PROBLEM COULD NOT BE DUPLICATED. *JB

NHTSA ID

10112977

Incident

Feb 23, 2005

Mileage

25,000 mi

ABOUT 1 MONTH AFTER BUYING A NEW 2004 SILVERADO IT STARTED SURGING VILOENTLY WHEN COLD. IT IS INCONSISTANT, SOMETIMES LASTS FOR BLOCKS. I ALMOST GOT REAR ENDED LAST WEEK WHILE TRYIG TO CONTROL THE TRUCK. GM REFUSES TO DO ANYTHING, SAYING THERE IS NO DIAGNOSIS CODES SET AND THEY HAVE NEVER HEARD OF SILVERADO`S SURGING. THEY CLASS IT AS A FEATURE AND SAY I NEED TO FEATHER THE CLUTCH. FEATHERING THE CLUTCH IN TRAFFIC IS A GOOD WAY TO GET KILLED. THIS HAS BEEN GOING ON ABOUT 4 MONTHS NOW. I BELIEVE THEY KNOW WHAT IS WRONG AND IT IS HAPPENING WITH MORE THEN JUST MY ONE TRUCK; BUT THEY DON'T WANT TO SPEND THE MONEY TO FIX IT.

NHTSA ID

10125575

Incident

Feb 1, 2005

Mileage

1,200 mi

2004 CHEVROLET SILVERADO EXPERIENCED COMPLETE SHUTDOWN WHILE DRIVING IN TRAFFIC.*MR THE MANUFACTURER REPLACED THE IGNITION SWITCH, FUEL PUMP, COMPUTER MODULE AND INSTALLED ENGINE DIAGNOSTIC SYSTEM TO MONITOR THE TRUCK. DUE TO ALL THE PROBLEMS THE CONSUMER EXPERIENCED THE MANUFACTURER REPLACED THE TRUCK. *NM

NHTSA ID

10124701

Incident

May 5, 2005