| 1 | 0 | 3 | 4 | 3 | 4 |
Expensive Pontiac G8 repairs by problem area
Engine (45%)
Transmission and Drivetrain (0%)
Brakes and Traction Control (6%)
Suspension and Steering (26%)
Electrical and Air Conditioning (16%)
Paint, Rust, Leaks, Rattles, and Trim (3%)
Other (3%)
Chart based on 31 repairs.
Pontiac G8 repair cost distribution
$2500+ (32%)
$1000 - $2499 (68%)
$500 - $999 (0%)
$100 - $499 (0%)
< $100 (0%)
Chart based on 22 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2009 Pontiac G8 4dr Sedan
361-horsepower 6.0L V8 6-speed shiftable automatic RWD
| 465000 mi C $2060 |
Car would not start after a 7 hour drive and 20 minute rest. Tow truck mechanic confirmed a 'No Fuel to engine'. Car went to dealer. It took them hours to determine a fuel pump problem. Was going to charge me $1200. for a pump which he would have to order from the States!! I ordered in the Identical GM pump from Rock auto for $445 with the taxes and shipping and less wait time. While removing fuel tank they saw the drive shaft hanger bearing was defective (rubber flex ring was damaged) so they replaced that on the install. Got the car back and drove a 1000 ft and it died. Four more hours @$130 hr, and they replaced the fuel pump relay . The car is displaying other odd electrical issues- Wipers don't work and weird high/ low beam functions but they could not diagnose. |
| 65000 mi US $500 |
No oil pressure at cold start and idle speed. Would build normal pressure at higher RPM or warm start. Found broken timing chain tensioner and scored oil pump gears. Replaced timing chain, chain tensioner and oil pump. |
| 65300 mi US $1700 |
Previous problem (oil pump failure) was caused by one worn camshaft lobe/lifter putting metal into the engine. A tapping noise developed 2 weeks after the oil pump repair and the cam/lifters were replaced |
| 67800 mi US $960 |
EVAP solenoid and canister failed, were replaced |
| 105000 mi US $650 |
Alternator failed. Purchased OE part and brought it to the shop for replacement. |
| 129777 mi US $2200 |
Replaced struts, shocks, strut bushings (they were blown) |
| 44000 mi US $2400 |
Engine damper at front of crank went bad, was wobbling making noises in serpentine belt. Told if it was not addressed engine bearings could go bad. |
| 38000 mi US $4000 |
Actual Fuel Management showing initial signs of failure required top end rebuild and cam-swap. |
| 40000 mi US $900 |
Rear left caliper seized, decided to replace rear calipers, do rotors, fluids, and get stainless steel lines. |
| 34765 mi C $2500 |
Replaced lower control arms (under warranty - this was a known design flaw that was corrected on later parts); also replaced strut bearings. |
| 78740 mi C $110 |
Replaced sway bar end links after driver's side began to "clunk" over bumps. Lower ball end was loose/worn. |
| 84940 mi C $500 |
Rear door locks malfunctioning. |
| 124000 mi US $1100 |
Exhaust replaced, both catalytic converters, exhaust manifolds to headers, all midpipes to mufflers. |
| 94000 mi US $550 |
Radiator connection to the hose broke and new radiator was put in the car. |
| 103000 mi US $1250 |
Replacement of A/C belt and tensioners along with 100k scheduled maintenance. The belt was half broken and that had damaged the tensioners. |
| 38200 mi US $563 |
Driver door would not close, instead bouncing off latch mechanism. Could not fully unlock door after it was locked with the power locks or manually pushing the switch on the door. This only showed up after locking the door upon incident. |
| 54700 mi US $240 |
Check engine light came on, gas cap was bad and replaced (2nd replacement since new). |
| 84000 mi US $250 |
Occasional odor from A/C. There was a service bulletin that called for a coating be applied to the evaporator (I believe). In the process, they said the system started losing pressure, so they discharged and recharged it at no extra cost. TPMS system fault reported after driving 20 minutes or so. Consistently comes on if driven that long. No tire pressure reading when it's on, reads fine when not. They re-learned the tires, which I had tried before. Still a problem. $0 cost. |
| 88000 mi US $250 |
Rattling from front passenger side of car. Strut mounts replaced on both front positions, control arm bushing was ruptured, control arm replaced. All struts up front are absent of nitrogen, parts on order and not included in the price abov TPMS sensors reporting system fault after the car is warmed up. Replaced all TPMS parts at all 4 corners when having new tires put on. This resolved the issue. |
| 89000 mi US $2500 |
Right front strut mount had separated. Both front strut mounts were replaced. Right front control arm bushing had disintegrated. Both front control arms replaced. Front struts and shocks no longer had gas in them, all 4 replaced. |
| 99400 mi US $600 |
Neck connecting hose to radiator broke off, causing vehicle to overheat. Replaced thermostat and hoses in addition to the new radiator. |
| 109000 mi US $1983 |
Front and rear brake pads low. First replacement of rear brake pads. Oil leak repair: Replace front crank seals, oil pan gasket, valve cover seals, oil pressure sender, oil pressure filter. Replaced hood gas struts |
| 113000 mi US $736 |
Alternator failed, and it was replaced with an OEM part. The initial replacement was damaged in shipping, which required another be shipped, which is why it was a 2 day repair and not 1 day. |
| 114000 mi US $740 |
The harmonic balancer fell apart. |
| 125000 mi US $2600 |
Looks free failure caused by excessive wear from active fuel management system. |
| 58000 mi US $125 |
The car would no longer disconnect the Bluetooth connection to my phone when turned off. Also, RV mirror lights stayed on when car was off. Dealer reprogrammed the VCIM. This fixed both problems. |
| 64000 mi US $1000 |
Replaced front lower control arms on both sides of front suspension. Replace center high mounted brake light. Original LED light had stopped working. |
| 65000 mi US $1000 |
Replaced two motor mounts and transmission mount. |
| 72000 mi US $800 |
Alternator replaced. |
| 74000 mi US $303 |
AC drive belt broke. I had dealer replace both belts. Noise coming from front suspension over bumps. Very loud during cold weather. Dealer replaced both front struts and strut mounts. |
| 67000 mi US $450 |
Lower mufflers failing (loud droning). Replaced with performance tubes (mufflers not replaced). Cost shown is the labor to remove old mufflers and weld in new pipes. Doesn't include price of new pipes. |
| 115000 mi US $1100 |
Interior trim on passenger side console popped out, was reinstalled. Passenger window issue finally fixed. Issue was pinched wiring--instead of replacing the wiring, the shop rewired the shorted items. Engine blipping issue--the ignitions wires were toast. plugs and wires replaced. |
| 163562 mi US $1689 |
One of two fuel sender units failed, and car was leaking gas. Given the car's age and how much work it is to do this repair, opted to replace both sender units and fuel pumps. Time in shop was extended due to time it took to receive new parts. |
| 164156 mi US $450 |
Harmonic balancer was failing, it and its bolt were replaced. |
| 145000 mi US $1100 |
Airbag fault |
| 137000 mi US $800 |
Front arm assembly |
| 84940 mi C $1100 |
Control arm was worn and not covered under the extended warranty (warranty only covers the ball joint). Steering knuckle was cracked while removing control arm and had to be replaced as well. |
2009 Pontiac G8 4dr Sedan
256-horsepower 3.6L V6 5-speed shiftable automatic RWD
| 74000 mi US $127 |
Fuel tank evap sender malfunctioned |
| 105000 mi US $1200 |
Airbag clock spring failed |
| 114000 mi US $450 |
replaced RH lower control arm |
2008 Pontiac G8
Engine not specified
| 24000 mi US $3000 |
Ball joints and tie rod ends wore out |
2008 Pontiac G8 4dr Sedan
361-horsepower 6.0L V8 6-speed shiftable automatic RWD
| 30000 mi US $150 |
Hood release cable broke |
| 34200 mi US $100 |
sway bar end links replaced. |
| 34900 mi US $700 |
front tie rods replace, rear set (car has 2 sets per front wheel) |
| 45000 mi US $700 |
Replaced Lower control arms |
| 56000 mi US $1000 |
Leak in aluminum line and compressor |
| 59000 mi US $3500 |
Catastrophic valve train failure |
2008 Pontiac G8 4dr Sedan
256-horsepower 3.6L V6 5-speed shiftable automatic RWD
| 90800 mi US $250 |
Side Mirror Controller did not move the mirrors. |
| 146700 mi US $129 |
Replaced interior door latch mechanism, original lever broke. |
| 151000 mi US $3000 |
Timing chain needed to be replaced. Second time this has occurred, last time it was under warranty at 70k miles. Needed new front pads as they broke off from caliper. Replaced caliper and pads. Also flushed beak line. |
2008 Pontiac G8 4-door
6-cylinder automatic 2WD
| 60000 mi US $125 |
Passenger side tie rods, control arm, radius arm worn producing a shake when turning and braking. All were replaced. |
| 69700 mi US $2400 |
Inner and outer tie rods replaced on driver side. Timing chain stretched. Timing chains replaced. |
| 80000 mi US $600 |
Rear wheel bearing replaced due to noise and alignment off. 2nd wheel bearing replaced due to residual noise. |
See TrueDelta's information for all Sedans
See TrueDelta's information for all Pontiac models.
