Hi guys... I would appreciate any help that you can give me on this, because I am stumped. My Tahoe's temperature gauage is stuck all the way to the right. I unplugged the one-wire plug on the temperature sending unit, and it went all the way back to the left. I guess it needs to be replaced, right? After the gauge tore up, greyish-black smoke has been coming out of the tail pipe. I mean, I'm talking about "top fueler burn out smoke." It stops for a while, then starts back up going down the road. My fuel mileage has gotten terrible since this started. The truck seems to be jittering going down the road. The truck is full of water and the oil has no water in it, so I'm guessing that it's not the head gasket. PLEASE HELP!!!.
Thanks,
John
Thanks,
John
