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Chris (aka-Moose)
Chris (aka-Moose), GMC Technician
Category: GMC
Satisfied Customers: 45534
Experience:  16 years of experience
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I have a 08 savana 3500 van duramax ther is a cracking sound

Customer Question

Hello,
I have a 08 savana 3500 van duramax ther is a cracking sound that comes and goes from the engine area. Sounds like a small hammer hitting a cast iron block.
Thanks for your time
John
Submitted: 1 year ago.
Category: GMC
Expert:  Chris (aka-Moose) replied 1 year ago.

Any concerns noted on any of the gauges?

Does this occur at a certain speed or rpm or load or temp?

Is this effecting the performance?