P0496 Code & other problems - Pontiac G6 Forum
 
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post #1 of 5 (permalink) Old 03-29-2013, 08:27 AM Thread Starter
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P0496 Code & other problems

I am getting a P0496 code on my 09 G6 GXP. Has anyone experienced this and is this the part that fixes it: Vapor Canister Purge AC DELCO Part # 2142237 ?

Also some other symptoms I have with the cars, has anyone experienced these on their GXP sedan and could recommend what the issue or a fix may be, your input would be greatly appreciated.

-Rear doors locks sometimes will not unlock with either remote i have.

-A constant mild scraping like noise when driving...with the radio off and driven at 5 mpg it can be heard as well. IS this a wheel hub or wheel bearing problem?

- Once is 6th gear, I get a weird buzzing like sound, and i hear it go away if i downshift into 5th gear to pass but once in overdrive it comes back. This noise comes and goes like very 2-3 days.

-Sometimes once in 6th gear and i let off the gas anywhere from 45-65mph and let the car slow down, i can feel a light shuddering.

-Power steering shudders, but i think i saw a TSB on the fluid being bad.

- Noticed a coolant on the ground by the passenger side wheel near the cv joints is where the dripping is coming from but i dont see any hoses here. I think the water pump is on that side. I have to refill the reservoir once a week.

-Many times on the expressway it seems like the car will not keep straight, even after align and balance it feels like it doesnt naturally track straight like other cars ive driven, is this the issue with the goodyear tires that come on the car or a steering issue.

-Maybe once or twice a month the rear radio speakers start getting distorted and the next day sound fine.

- Headlights will work one day and then not work for 2-3 days, i guess i have to hit the right bump on the road for it to work again, different bulb and same problem, is this a new head lamp i need or is the wiring going to the headlamp faulty?


I love my GXP, but at the same time dont want to keep a car that is going to self destruct. Are these minor issues that can be resolved, or get rid of the car while i can. I have have 76K on it and owe $7700 on it still.
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post #2 of 5 (permalink) Old 04-23-2013, 10:30 AM
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-mild scraping. Check the brake calipers. I have a recurring stuck caliper that doesn't seem to cause any driving or braking issues, but I can hear it scraping very slightly against the rotor.

-shudder: Check tires out. Could be a flat spot or busted belt. This would cause shuddering when weight shifts like acceleration or breaking. This would also cause a noticeable shudder in the steering wheel.

-alignment: probably a tire issue, likely related to the shuddering.

-headlights: maybe a wiring issue. I would check the connections and try hooking up a volt meter and see if there is power to the wires.

-coolant on ground: I would get this checked out immediately. My wife's 07 GT just did this a little while back and it ended up being a blown head gasket. The coolant was leaking on the passenger side as you described.

-door locks: probably not a remote issue. Possible wiring issue.

Do you know if the car was ever in a flood? Lots of random wiring issues might be a result of some corrosion.

2009 Techno Gray Metallic G6 GXP Sedan (3.6L Auto6 112K miles)
---
CRAB Intake Opt 3 w/FPU, Lloyds GXP floor mats, HIDs low 6000k 55w/fog 3000k 35w, LED DRLs behind lower grills, V3 Triton LED turn signal/reverse/brake, LED side markers/maps/dome/tag/trunk/high mount stop, 2 coats niteshades on tails, Tint 35% all around, Debadged (except arrows), PAC IPod and BT adapters, PowerStop D/S rotors and ceramic pads, Resonator repl w/24" cherry bomb, Racingline STB, Big 3 Upgrade, Optima Yellowtop D75/25, Blacked out arrows, chrome window trim and black dipped wheels, KYB struts and shocks, CM lowering springs, Cherry Bomb Vortex Crossflow muffler, 2.5" pipe from axle back, two 4" stainless double walled slant tips
...still working...
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post #3 of 5 (permalink) Old 04-24-2013, 07:51 AM Thread Starter
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Quote:
Originally Posted by mshinall View Post
-mild scraping. Check the brake calipers. I have a recurring stuck caliper that doesn't seem to cause any driving or braking issues, but I can hear it scraping very slightly against the rotor.

-shudder: Check tires out. Could be a flat spot or busted belt. This would cause shuddering when weight shifts like acceleration or breaking. This would also cause a noticeable shudder in the steering wheel.

-alignment: probably a tire issue, likely related to the shuddering.

-headlights: maybe a wiring issue. I would check the connections and try hooking up a volt meter and see if there is power to the wires.

-coolant on ground: I would get this checked out immediately. My wife's 07 GT just did this a little while back and it ended up being a blown head gasket. The coolant was leaking on the passenger side as you described.

-door locks: probably not a remote issue. Possible wiring issue.

Do you know if the car was ever in a flood? Lots of random wiring issues might be a result of some corrosion.

Thanks for the reply

-It was not in a flood

-I took the headlight apart and it was the usual G6/Malibu burnt connector tip, so i bought a H11 connected and rewired it rather than buy a new headlight and now its fine.

-Took it to the dealer this morning and its a leaking water pump

-The brakes are fine, but they will look back into the scraping sound

-The tires and alignment are fine

-After looking up the door locks, i see the G6/Malibus have a very common problem with the rear door actuators going bad and they are about $250+ for the dealer to fix it per door
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post #4 of 5 (permalink) Old 04-24-2013, 08:47 AM
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I say go to gm parts direct online, order the actuators and replace them yourself. $500, nobody rides in the back anyway ;-)

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2009 Techno Gray Metallic G6 GXP Sedan (3.6L Auto6 112K miles)
---
CRAB Intake Opt 3 w/FPU, Lloyds GXP floor mats, HIDs low 6000k 55w/fog 3000k 35w, LED DRLs behind lower grills, V3 Triton LED turn signal/reverse/brake, LED side markers/maps/dome/tag/trunk/high mount stop, 2 coats niteshades on tails, Tint 35% all around, Debadged (except arrows), PAC IPod and BT adapters, PowerStop D/S rotors and ceramic pads, Resonator repl w/24" cherry bomb, Racingline STB, Big 3 Upgrade, Optima Yellowtop D75/25, Blacked out arrows, chrome window trim and black dipped wheels, KYB struts and shocks, CM lowering springs, Cherry Bomb Vortex Crossflow muffler, 2.5" pipe from axle back, two 4" stainless double walled slant tips
...still working...
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post #5 of 5 (permalink) Old 04-25-2013, 08:33 AM Thread Starter
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Quote:
Originally Posted by mshinall View Post
I say go to gm parts direct online, order the actuators and replace them yourself. $500, nobody rides in the back anyway ;-)

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That will probably be the way I go. I was quoted $274 per door. $113 for parts on one door and $139 for parts on the other door and $140 for labor per door.
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