mbabcock96
Junior Member
Hello, today truck started up fine, leaving work at lunch it was perfect, have the manifold tick, but upon going to return to work 1 hour later, on start up it was a very loud knock for about a second and then it went away, turned it off and back on no sound other than the manifolds, any ideas on what it could be, thank you! Edit* popped the hood and the cold air intake tube was disconnected somehow from the filter and housing
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