2005 CHEVROLET SILVERADO Engine And Engine Cooling Problems

EXHAUST MANIFOLD BOLTS BREAKING LEAVING STUDS IN THE HEADS, HEATING UP ENGINE COMPARTMENTS, RELEASES CARBON MONOXIDE, AFFECTS O2 SENSOR AND CATALYTIC CONVERTER. WILL NOT PASS EMISSIONS IN SOME STATES. GM NOT STANDING BEHIND THIS 1999-2008 ISSUE. IT IS A SAFETY ISSUE AND IS EXPENSIVE TO FIX. GM MECHANICS DENYING ANY SUCH ISSUES. PLEASE CHECK- IN TO THIS. OUR WHOLE FLEET AND OUR PERSONAL TRUCKS AFFECTED BY THIS. *TR

EXHAUST MANIFOLD BOLTS BREAKING OFF LEAVING STUDS IN THE HEADS HEATING UP ENGINE COMPARTMENT, RELEASES CARBON MONOXIDE, AFFECTS O2 SENSOR AND CATALYTIC CONVERTER, WILL NOT PASS EMISSIONS IN SOME STATES. GM NOT STANDING BEHIND THIS 1999-2008 ISSUE. IT IS A SAFETY ISSUE AND IS VERY EXPENSIVE FOR US TO FIX. GM MECHANICS SAY THEY HAVE NOT HEARD OF THIS ISSUE. PLEASE CHECK IN TO THIS. *TR

THIS IS THE SECOND TIME IT HAS HAPPEND, MY EXHAUST MANIFOLD BOLT BREAKS. *TR

IN JUNE, 2011, I BEGAN NOTICING MY ANTIFREEZE LEVELS WERE DROPPING SLIGHTLY. THERE WERE NO NOTICEABLE LEAKS OF ANTIFREEZE ANYWHERE. I ATTRIBUTED IT TO EVAPORATION & ADDED COOLANT. OVER TIME THE TRUCK STARTED USING MORE & MORE ANTIFREEZE. A FRIEND OF MINE NOTICED A PUFF OF WHITE SMOKE COMING FROM THE TAILPIPE. AT THE TIME I DIDN'T REALLY THINK ANYTHING OF IT. LAST WEEK WHILE DRIVING HOME FROM WORK AFTER FINISHING UP A "B" TRICK JOB (11PM), I NOTICED A KNOCKING SOUND COMING FROM THE ENGINE. IT SMOOTHED OUT AFTER A FEW MILES OF DRIVING IT. THE NEXT DAY IT HAPPENED AGAIN ( I WORK 26 MILES FROM HOME) AGAIN IT SMOOTHED OUT & I WAS JUST GRATEFUL I GOT HOME SAFELY THAT NIGHT. BY THIS TIME I KNEW THERE WERE SOME SERIOUS ISSUES & DECIDED NOT TO DRIVE IT AGAIN. I BEGAN RESEARCHING THE ISSUE ON LINE & FOUND OTHERS THAT WERE EXPERIENCING IDENTICAL SYMPTOMS. TURNS OUT THE PROBLEM LIES WITH THE CYLINDER HEADS IN THE ENGINE MANUFACTURED FOR GM BY CASTECH. ACCORDING TO OTHER PEOPLE & BY GMS OWN ADMISSION, A FAULTY, WEAK MATERIAL WAS USED TO BUILD THE CYLINDER HEADS. OVER TIME THE MATERIAL WEARS AWAY CAUSING POROUS CRACKS & THE ANTIFREEZE SEEPS INTO THE OIL SYSTEM POLLUTING IT, CAUSING SIGNIFICANT DAMAGE TO THE ENGINE. (BY THIS TIME MOST EXTENDED WARRANTIES ARE UP). THE ANTIFREEZE MIXES WITH THE OIL & IS EMITTED OUT OF THE TAILPIPE AS EXHAUST. THIS IS WHY NO TRACES OF ANTIFREEZE WERE FOUND & THE REASON FOR THE WHITE PUFF OF SMOKE. GM ISSUED A BULLETIN #06-06-01-019B IN JUNE 2007 INFORMING REPAIR TECHNICIANS ON WHERE TO LOOK FOR THE DAMAGE. THROUGH OTHER PEOPLES EXPERIENCES, I AM FINDING THE ENGINES WERE RUINED IN 90% OF THE CASES & GM CLAIMS NO RESPONSIBILITY. IN MY CASE I AM DRIVING A FRIEND'S VEHICLE WAITING ON WORD FROM MY MECHANIC AS TO MY OPTIONS. THESE REPAIRS ARE COSTLY. UP TO $5000!! THIS IS NOT FROM NORMAL WEAR & TEAR THIS IS A MANUFACTURING DEFECT & I FEEL A RECALL SHOULD BE ISSUED. *KB

Mileage: 95,000

TL*THE CONTACT OWNS A 2005 CHEVROLET SILVERADO. THE CONTACT STATED THE VEHICLE STALLED. THE VEHICLE WAS TOWED TO A LOCAL SHOP WHERE THEY INFORMED THAT THE ELECTRONIC CONTROL MODULE WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE BUT DID NOT OFFER ANY ASSISTANCE SINCE THE VEHICLE WAS NOT UNDER WARRANTY. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 36,946 AND THE CURRENT MILEAGE WAS 37,826.

Mileage: 36,946

TL* THE CONTACT OWNS A 2005 CHEVROLET SILVERADO. THE CONTACT STATED THE VEHICLE WAS ABNORMALLY LOSING COOLANT EVERY THREE WEEKS. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR FACILITY WHERE THE MECHANIC WAS UNABLE TO DETERMINE THE SOURCE OF THE LEAK. THE VEHICLE WAS NOT REPAIRED. NEITHER THE DEALER NOR THE MANUFACTURER WAS CONTACTED IN REGARDS TO THE FAILURE. THE CONTACT WAS CONCERNED WITH THE POSSIBILITY OF THE VEHICLE OVERHEATING AS HE LOCATED NUMEROUS COMPLAINTS ONLINE REGARDING THE FAILURE IN HIS YEAR, MAKE AND MODEL BUT NO RECALLS. THE FAILURE MILEAGE WAS 80,000.

Mileage: 80,000

ACTUATOR FOR SPLIT CLIMATE CONTROL (DRIVE/PASSENGER) BLOWS HOT WHEN A/C IS ON AND TEMPERATURE SHOWS THAT CAB SHOULD BE COOL. THIS HAS HAPPENED SEVERAL TIMES SINCE I BOUGHT THE TRUCK. *TR

TL*THE CONTACT OWNS A 2005 CHEVROLET SILVERADO. WHILE DRIVING APPROXIMATELY 65 MPH, THE CHECK ENGINE LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. WHEN THE CONTACT DEPRESSED THE ACCELERATOR PEDAL, THE VEHICLE IDLED ROUGHLY AND FAILED TO ACCELERATE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THEY STATED THAT THE FAILURE WAS RELATED TO THE LEFT AND RIGHT WIRE HARNESS, WHICH WAS REPLACED. THE FAILURE RECURRED ON THREE SEPARATE OCCASIONS. RECENTLY, THE BATTERY WAS REPLACED AT AN INDEPENDENT MECHANIC SHOP. THE TECHNICIAN SUGGESTED THAT THE EDGE BE REPLACED, WHICH WAS A COMPONENT THAT ENHANCES THE PERFORMANCE OF THE VEHICLE. THE COMPONENT WAS REMOVED AT THE CONTACT'S REQUEST AND WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 20,000 AND CURRENT MILEAGE WAS 71,000.

Mileage: 20,000

VEHICLE QUITS RUNNING AND MAY RESTART AFTER 10 MINUTES OR MAY NOT. IT SHUTS OFF AT ANY SPEED AND AT RED LIGHTS. WHEN ON A HILL IT WILL ROLL BACK INTO WHATEVER IS BEHIND. THIS VEHICLE HAS BEEN TO THE DEALER 6 TIMES AND THEY CAN FIND NOTHING WRONG. SOMETIMES THERE IS POWER TO THE DASH AND LIGHTS, OTHER TIMES THE DASH GOES DARK AS IF THERE WAS NO POWER AT ALL. *TR

Mileage: 8,432

VEHICLE QUITS RUNNING ANYTIME, BRAKES AND STEERING "HARD", DEAD BATTERY LIKE SYMPTOM AND WILL NOT START OR RESTART AFTER QUITTING. *TR

Mileage: 8,342

DT*: THE CONTACT STATED THE VEHICLE WOULD SHUT OFF WITHOUT ANY PRIOR WARNING WHILE ACCELERATING 10 MPH UNDER NORMAL ROAD CONDITIONS. THIS OCCURRED ON FIVE OCCASIONS. THE VEHICLE WAS TAKEN TO THE DEALER THREE TIMES, WHO WERE UNABLE TO DUPLICATE THE PROBLEM. NO REPAIRS WERE MADE.

Mileage: 16,200

DT*: THE CONTACT STATED THE VEHICLE INFREQUENTLY STALLED WHILE TRAVELING 70 MPH. THE SERVICE DEALER COULD NOT DUPLICATE THE ISSUE. THIS HAS OCCURRED SINCE APRIL 2005 AND HAS BEGUN TO OCCUR MORE FREQUENTLY.

DT*: THE CONTACT STATED THE VEHICLE STALLS AT ANY SPEED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALERSHIP SEVERAL TIMES. THE LEVEL SENSOR, FUEL INJECTION WIRING HARNESS, THE DIRECT FUEL INJECTION DRIVER, THE FUEL TANK, AND THE FUEL TANK MODULE HAVE BEEN REPLACED. THE SENDER PUMP ASSEMBLY WAS REPLACED TWICE. AFTER THE LAST REPLACEMENT THE CHECK ENGINE LIGHT ILLUMINATED AND THE DEALER COULD NOT DETERMINE THE CAUSE OF THE PROBLEM.

Mileage: 60,800

2005 SILVERADO HYBRID ENGINE TURNS OFF AT STOPS WHEN BRAKE IS APPLIED. *TS THE HYBRID TURNS ENGINE OFF AT STOPS WHEN BRAKE IS APPLIED. THE CONSUMER FEELS THAT IT TAKES TOO LONG FOR THE ENGINE TO PICK UP POWER AFTER TAKING FOOT OFF THE BRAKE AND APPLYING THE ACCELERATOR. THE CONSUMER FEELS THAT THE DELAY IS DANGEROUS WHEN TRYING TO ENTER FAST MOVING TRAFFIC FROM A STOP. WHILE STOPPED ON AN INCLINE VEHICLE ROLLS BACKWARDS WHILE THE CONSUMER'S FOOT IS IN TRANSITION FROM THE BRAKE TO THE ACCELERATOR PEDAL. *NM

DT: THE CONTACT STATED ON THREE OCCASIONS THE HEATER FAILED WHILE IN USE. THE FIRST AND SECOND TIME THE DEALERSHIP CLEANED THE HEATER CORE. THE THIRD TIME, THE WATER PUMP WAS REPLACED. THERE HAVE BEEN NO FURTHER PROBLEMS. *AK

Mileage: 9,276

TRUCK HAS 14000 MILES, IT HAS CONSTANT OVER HEATING PROBLEMS WHILE TOWING MY 8K TRAVEL TRAILER. I HAVE TALKED WITH THE CHEVROLET DEALER ABOUT IT, THEY TOLD ME THAT THEY WERE AWARE OF THE PROBLEM BUT AT THIS TIME HAVE NO FIX. I CALL STUPID BECAUSE I HEARD ONLINE THAT THE 06 MODELS HAVE REVISED COOLING SYSTEMS AND A LARGER TURBO CHARGER. MY BELIEF IS THE FIX IS TO MUCH $$ AND THEY WILL ONLY TAKE CARE OF THE FEW PEOPLE THAT TOW AND HAVE ISSUES. I HAVE NOTICE A LOT OF INFORMATION ON THE NET ABOUT 04.5 AND 05 LLY DURAMAX TRUCK THAT TOW OVER 10000 HAVE THIS ISSUE BUT MY TRAVEL TRAILER FULLY LOADED ONLY WEIGHS UNDER 9K. THE MAJOR DOWN SIDE IS THE TRUCKS INABILITY TO MAINTAIN THE SPEED LIMIT DUE TO THE OVERHEATING WATER TEMPERATURE AND THE POWER LOSS FORMED A COOLING FAN THAT RUNS HYPERSPEEDS NO STOP WHEN TOWING. MY TOWING HAS BEEN DONE AT LOW OUTSIDE TEMPERATURES RANGING FOR 75 TO 85 DEGREES OUTSIDE. THIS TRUCK IS NOT PERFORMING AS ADVERTISED OR SUPPOSED TO BE DESIGNED FOR. *NM

Mileage: 5,000

DT: THE CONTACT OWNS A 2005 CHEVROLET SILVERADO 1500 PICK-UP TRUCK. THE CONTACT STATED THAT WHILE DRIVING THE VEHICLE COMPLETELY SHUT OFF. IT LOST STEERING AND BRAKING CAPABILITIES. THE CONTACT STATED THAT THE ENGINE OIL RESET LIGHT FLICKERED ON AND OFF AFTER THE INCIDENT OCCURRED. AFTER A FEW MINUTES THE VEHICLE STARTED BACK UP. THE CONTACT STATED AFTER DRIVING A FEW MORE MILES THE VEHICLE REPEATED THE SAME PROBLEM. THE CONTACT CONTACTED THE MANUFACTURER, AND THEY HAD A CONFERENCE CALL WITH THE DEALERSHIP, WHO STATED THEY WOULD REPAIR THE VEHICLE. THE DEALERSHIP HAS NOT YET PICKED UP THE VEHICLE. THE CONTACT CALLED THE DEALERSHIP, AND THEY WERE GOING TO CALL THE CONSUMER BACK WITHIN THE NEXT FEW MINUTES. *AK

Mileage: 1,600

TRUCK HAS 11000 MILES, BEEN IN THE SHOP 5 TIMES FOR OVER HEATING WHILE TOWING. GM TECHNICIAN LINE HAS A CASE # ON FILE, AND TOLD THE TECHNICIAN WHO RELAYED THE INFORMATION TO MYSELF THAT THEY WERE AWARE OF THE PROBLEM BUT AT THIS TIME HAVE NO FIX. I CALL BS BECAUSE THE 06 MODELS HAVE REVISED COOLING SYSTEMS AND A LARGER TURBO CHARGER. MY BELIEF IS THE FIX IS TO MUCH $$ AND THEY WILL ONLY TAKE CARE OF THE FEW PEOPLE THAT TOW AND HAVE ISSUES. I HAVE NOTICE A LOT OF INFORMATION ON THE NET ABOUT 04.5 AND 05 LLY DURAMAX TRUCK THAT TOW OVER 10000 HAVE THIS ISSUE. THE MAJOR DOWN SIDE IS THE TRUCKS INABILITY TO MAINTAIN THE SPEED LIMIT DUE TO THE 234* PLUS WATER TEMPERATURE AND THE POWER LOSS FORMED A COOLING FAN THAT RUNS NO STOP WHEN TOWING. I HAVE MADE THE SAME PULL WITH MY 2001 CHEVROLET DURAMAX TRUCK AND HAVE NOT HAD ISSUES WITH IMPEDING TRAFFIC FLOW.*AK

Mileage: 3,500

TRUCK HAS 11000 MILES, BEEN IN THE SHOP 5 TIMES FOR OVER HEATING WHILE TOWING. GM TECHNICIAN LINE HAS A CASE # ON FILE, AND TOLD THE TECHNICIAN WHO RELAYED THE INFORMATION TO MYSELF THAT THEY WERE AWARE OF THE PROBLEM BUT AT THIS TIME HAVE NO FIX. I CALL BS BECAUSE THE 06 MODELS HAVE REVISED COOLING SYSTEMS AND A LARGER TURBO CHARGER. MY BELIEF IS THE FIX IS TO MUCH $$ AND THEY WILL ONLY TAKE CARE OF THE FEW PEOPLE THAT TOW AND HAVE ISSUES. I HAVE NOTICE A LOT OF INFORMATION ON THE NET ABOUT 04.5 AND 05 LLY DURAMAX TRUCK THAT TOW OVER 10000 HAVE THIS ISSUE. THE MAJOR DOWN SIDE IS THE TRUCKS INABILITY TO MAINTAIN THE SPEED LIMIT DUE TO THE 234* PLUS WATER TEMPERATURE AND THE POWER LOSS FORMED A COOLING FAN THAT RUNS NO STOP WHEN TOWING. I HAVE MADE THE SAME PULL WITH MY 2001 CHEVROLET DURAMAX TRUCK AND HAVE NOT HAD ISSUES WITH IMPEDING TRAFFIC FLOW.*AK

Mileage: 3,500

TRUCK HAS 11000 MILES, BEEN IN THE SHOP 5 TIMES FOR OVER HEATING WHILE TOWING. GM TECHNICIAN LINE HAS A CASE # ON FILE, AND TOLD THE TECHNICIAN WHO RELAYED THE INFORMATION TO MYSELF THAT THEY WERE AWARE OF THE PROBLEM BUT AT THIS TIME HAVE NO FIX. I CALL BS BECAUSE THE 06 MODELS HAVE REVISED COOLING SYSTEMS AND A LARGER TURBO CHARGER. MY BELIEF IS THE FIX IS TO MUCH $$ AND THEY WILL ONLY TAKE CARE OF THE FEW PEOPLE THAT TOW AND HAVE ISSUES. I HAVE NOTICE A LOT OF INFORMATION ON THE NET ABOUT 04.5 AND 05 LLY DURAMAX TRUCK THAT TOW OVER 10000 HAVE THIS ISSUE. THE MAJOR DOWN SIDE IS THE TRUCKS INABILITY TO MAINTAIN THE SPEED LIMIT DUE TO THE 234* PLUS WATER TEMPERATURE AND THE POWER LOSS FORMED A COOLING FAN THAT RUNS NO STOP WHEN TOWING. I HAVE MADE THE SAME PULL WITH MY 2001 CHEVROLET DURAMAX TRUCK AND HAVE NOT HAD ISSUES WITH IMPEDING TRAFFIC FLOW.*AK

Mileage: 3,500

2005 CHEVROLET SILVERADO 2500HD WITH THE 6.6 LITER DURAMAX ENGINE OVERHEATED WHEN PULLING MY 25 FEET TRAVEL TRAILER. FOUND THIS TO BE A HAZARD THAT GM WAS AWARE AND WAS NOT DOING ANYTHING TO CORRECT THE PROBLEM.*AK

Mileage: 4,000

THE DAY THE VEHICLE WAS PURCHASED THE CONSUMER NOTICED THAT THE CHECK ENGINE LIGHT ON HIS 2005 CHEVROLET SILVERADO HAD ILLUMINATED. *NM THE DEALER RESET THE CHECK ENGINE LIGHT, HOWEVER IT ILLUMINATED AGAIN AND THE DEALER STATED IT WAS A BAD GAS PRESSURE SENSOR. 4 MONTHS AFTER OWNING THE VEHICLE THE VEHICLE STARTED JERKING AND THE CONSUMER WAS UNABLE TO PASS OTHER MOTORIST ON THE HIGHWAY. THE CONSUMER MANAGED TO GET TO HIS DESTINATION WHEN ALL OF A SUDDEN ALL OF THE LIGHTS ON THE DASHBOARD LIT UP AND THE VEHICLE CUT OFF. THE DEALER INFORMED THE CONSUMER THE ABS SENSOR AND CRANK POSITIONING SENSOR WERE BAD. *JB *NM