403-horsepower 6.2L V8 6-speed shiftable automatic AWD
82403 mi US $166 |
Replaced water pump for what I thought was squeaking bearing, turns out it was the serpentine belt squeaking. |
134419 mi | Topped off coolant in reservoir. No visible leaks any where. |
142397 mi US $120 |
Replaced spark plugs and wires w/ heat shield sleeves |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
45000 mi | P0455 Code - Dealer replaced gas cap |
69000 mi US $350 |
Idler pulley replaced w new drive belt |
64600 mi | Collapsed Lifter |
90000 mi | Broken motor mount |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
54000 mi | Clunk in drivetrain when accelerating. Dealer found a Broken left motor mount. The part was replaced which corrected the problem. |
100000 mi US $100 |
Heater core hose broken. |
120000 mi US $300 |
misfire |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
109000 mi US $3850 |
Active Fuel Management (AFM) includes lifters that "lock" via oil pressure. This is also called "cylinder deactivation". One of these lifters failed and resulted in the entire top end of the motor having to be removed to replace all the lifters (thankfully, the cam was OK). |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
170000 mi US $160 |
Replace oil sending unit Replace O2 sensor |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
41500 mi | Transmission mounts Oil pan leak |
221000 mi US $180 |
Reduce power on display Troubleshooting found throttle position Sensor bad on engine bad replaced And also replaced pedal by wire Inside truck Disconnected battery and let it set And reset ecm for 10 minutes All codes cleared Truck reset and recycled the a/c system Per manual instructions from hot temperature to cold setting Everything works as a new truck With both sensors replaced |
116000 mi US $430 |
Replaced plugs and plug wires to combat rough idle |
123000 mi US $180 |
Oil pressure sensor due to CEL. Helped with rough idle, but I still experienced the rough idle off and on after that fix. I never replaced the coil packs, but that would have been the next on the list of replacement parts to throw at it as no repair shop could ever diagnose the problem 100% and mostly I just drove the truck and let it sputter when it felt it needed to. |
97800 mi US $400 |
Exhaust leak. Engine mount replacement. |
403-horsepower 6.2L V8 6-speed shiftable automatic RWD
156400 mi US $200 |
Rattling noise.catalytic converter. |
106000 mi US $200 |
Smog Sensor |
403-horsepower 6.2L V8 6-speed shiftable automatic AWD
38000 mi US $600 |
Metal pipe between radiator and rear heater leaked, causing car to overheat. Spent $600 on emergency temporary repair and towing, and dealer replaced under warranty. |
47000 mi | The car drove fine and there was no warning light, but the monthly OnStar report showed a possible issue with the transmission control module. The dealer reprogrammed the TCM. |
165000 mi US $600 |
Fuel Pump |
79000 mi US $575 |
Replaced leaking oil pan. |
403-horsepower 6.2L V8 6-speed shiftable automatic RWD
85800 mi US $500 |
Engine mount crushed. Needed to be replaced |
345-horsepower 6.0L V8 4-speed automatic AWD
145000 mi US $300 |
$60 Oil Sensor replacement. Gauge went to max oil pressure. Sensor replacement has it working in normal 40 psi yet oil sensor at back of engine against firewall. Need small hand to make it an easy job. Must remove 2 wire harnesses and clean area to get special socket in over sensor. Tight but doable. Dealership wanted $487 to replace. |
Engine not specified
88040 mi C $2000 |
Maf Sensor failed. Map sensor failed |
345-horsepower 6.0L V8 4-speed automatic AWD
229000 mi US $220 |
Oil cooler line gaskets leaking and replaced. |
252000 mi US $400 |
Lifter tap in engine becoming more frequent and loud. Only suggestions were engine rebuild, using engine oil additives to hopefully quiet the tapping. |
345-horsepower 6.0L V8 4-speed automatic RWD
135000 mi US $600 |
Water pump, thermostat and belts |
345-horsepower 6.0L V8 4-speed automatic AWD
74200 mi US $785 |
Oil line to oil cooler leaking, requiring replacement. Mechanic indicated that this is a common problem with the style of oil lines used by GM. |
91000 mi US $700 |
The water pump failed. The maintenance lead told me that this is a common occurrence for GM V8s this old and with this many miles/ |
102000 mi US $85 |
Replaced oil pressure sending unit. |
345-horsepower 6.0L V8 4-speed automatic AWD
189000 mi US $190 |
Routine maintenance and repair oil leak around engine |
Engine not specified
98000 mi US $90 |
Check engine light came on. Code P0161 O2 sensor heater malfunction Sensor 2 bank 2. Replaced the O2 sensor after the catalytic on the passenger side. Cleared the code. Check engine has been off for over a week. |
345-horsepower 6.0L V8 4-speed automatic AWD
59200 mi US $3139 |
Dlr advised that neoprene gaskets on the intake manifold had failed and were causing check engine light. Need to replace the gaskets to seal the intake manifold. |
90000 mi US $1500 |
Radiator fan was disengaging at idle sped and the engine would overheat thus shutting off the AC—-in 110 degree weather. Dealer replaced fan clutch but issue persists. I am considering installing an auxiliary “electric push fan” on the front of the radiator. |
345-horsepower 6.0L V8 4-speed automatic AWD
95000 mi US $12 |
new fuel pump / new intake gaskets new fuel pump / new intake gaskets new fuel filter |
113000 mi US $1000 |
driving on state highway and engine died. called tow truck towed to mechanic shop problem diagnosed as fuel pump shop istalled new fuel pump |
117000 mi US $100 |
Engine oil filter mounting bracket leak, replaced gasket. |
72800 mi US $450 |
The fuel pump failed. PSI was down to ~15. Had to tow to a shop. Fuel pump price was $210, labor was $240. |
345-horsepower 6.0L V8 4-speed automatic AWD
64000 mi US $450 |
Maf replaced |