How Often to Replace a Nissan Frontier Timing Chain?by Sameca Pandova
The Nissan Frontier received the VQ series V6 engine in 2005. This engine features a timing chain, not a timing belt. The timing chain is a lifetime part, and the service manual does not specify a replacement schedule.
Timing Chain Specifics
Timing chains are all-metal chains that do not require replacement, whereas timing belts are rubber and typically require replacement every 60,000 to 100,000 miles depending upon the manufacturer. The timing chain on the Frontier's VQ engine is contained in a sealed unit and is not serviceable.
While the timing chain itself is metal and essentially indestructible, the chain guides are plastic. These plastic guides often break with age. Nissan has released two technical service bulletins focused on the guides. NTB07-042a addresses VQ engines in 2005 through 2007 Frontiers and advises replacement of secondary timing chains and timing chain tensioners with revised parts. NTB09-128 covers models 2005 through 2010.
Worn chain guides result in a buzzing and whining sound from the engine and a rattle at idle. Contact your local Nissan dealer to see if it will cover the service under the TSBs referenced above.
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