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knock on start up?

902 Views 2 Replies 3 Participants Last post by  buzzkillwill
well this morning leaving work i fired up the titan and heard tick-tick-tick-tick for maybe a little over a second. sounded like my old silverado when i started it cold. my truck is a 07 with 6000 miles, is this something i should worry about or go get checked out?
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scwoody said:
well this morning leaving work i fired up the titan and heard tick-tick-tick-tick for maybe a little over a second. sounded like my old silverado when i started it cold. my truck is a 07 with 6000 miles, is this something i should worry about or go get checked out?
mines an 07 cc with 14000 miles and i never heard that...hmm take it in and check it out or maybe the motor is breakin in and thatll soon stop and youll be good.
Most likely not.
I might not explain this right, but I'll try...

The DOHC engine is chain driven. And those chains are on tensioners, and what you are most likely hearing, is the tenioner adjusting after sitting overnight.
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