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GMC Silverado pickup: My 2007 Silverado with a 4.8 V8 is makinga

 

Customer Question

My 2007 Silverado with a 4.8 V8 is makinga tapping/knocking noise but it is not the motor.
Sounds like it is connected to the exhaust system. At idle...no noise, step on the gas it taps/knocks, give it more gas and the noise stops. It can't be heard at cruising speed. Also my check engine light was on...for a while, but since the tapping...it's off.

 

Country: United States
Make: GMC
Model: Silverado pickup
Year: 2007
Engine: 4.8

Already Tried:
Nothing. It just started.

Submitted: 291 days and 15 hours ago.
Category: GMC
Value: $30
Status: CLOSED
Picture
Expert:  Michelle-Mod replied 291 days and 3 hours ago.


Hi, I’m a moderator for this topic and I wonder whether you’re still waiting for an answer. If you are, please let me know and I will do my best to find a Professional to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!


 
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