we bought a used suburban a little over a year ago so im not entirely sure whats been done to it. i know the spark plugs and filter and other basic stuff that you would do during an oil change needs to be done but my wife said the car smells like smoke from the engine bay after driving around doing errands. i started it up and let it idle for a bit then drove it around the block and didnt smell or see anything but the engine does have a pinging sound to it when its idling. Also the power seat occasionally gets stuck and wont move all the forward(it will move just not all the way up) and lastly the lights on the right side of her steering wheel have gone out. Is this just a fuse or is it a bulb?

thanks for the help im very unfimiliar with chevys and trucks

 

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the switches on the steering wheel are illuminated by leds in the switch. you will need new switches.

can't help with the other stuff over the internet...its something that needs to be heard, smelled and inspected.

 

2005 suburban, drivers power seat quit working and both front heaters quit at the same time. Note; seat heater switch lights do not illuminate. ANY ideas? Can't find a fuse for the power seat.