Pinging in 2011 Sierra 1500 Crew Cab

[hawkjr1]

I have a 2011 Sierra SLT Crew Cab, with the 5.3 engine and I am having problems with what sounds like pinging noise when I am driving say around 50, 60 or 70 MPH and I step on it and I hear that pining sound. It goes away when I get off of the gas. I have change up where I buy gas but it doesn’t help and even went to a higher grade fuel. Anyone have this problem. Is this normal for this engine. This is my first GM truck.

 

[GMC Customer Service]

hawk, have you had the vehicle looked over by your dealer yet? They should be able to handle this for you. Unfortunately I don't have any DIY suggestions but you should be able to get this taken care of through your Bumper to Bumper warranty. I hope this helps and if you do take your vehicle in let us know.

Jeff Morris, GMC Customer Service

 

[hawkjr1]

hawk, have you had the vehicle looked over by your dealer yet? They should be able to handle this for you. Unfortunately I don't have any DIY suggestions but you should be able to get this taken care of through your Bumper to Bumper warranty. I hope this helps and if you do take your vehicle in let us know.

Jeff Morris, GMC Customer Service

Thanks for replying back. I took the truck in about three weeks ago when I first notice the pinging noise and left it with them. It was time for the oil change and I told them about the problem. They said?? They drove it and it was ok. So I took their word, but now it is getting worse. It just starts pinging now when I am driving at 50 to 60 MPH and I don’t have get down on it at all. I also notice what sound like a grinding noise when I am driving slow (20 MPH) I just happen to have the window down the other day and heard it. It wasn’t the brake it was coming from the engine compartment. I have an appointment Monday at the dealer and I will request someone ride with me so I duplicate the problem. I will let you know what happens. Again Thanks