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Discussion Starter · #1 ·
Bought my '06 Frontier King Cab V-6 SE 4x4 four years ago in Kalispell, MT and now live in Tulsa, OK. I've 71K on the odometer and all i've spent money on is for oil changes, tires, air filters and wiper blades, period. Drove the Frontier and Tacoma several times and bought my Frontier because it was $2500 less, performed better, handled better and YOU COULD SEE OUT OF IT from the superb seating position. Have regularly gotten 21-22, even 23mpg hwy mileage, especially out West at altitudes of 4,000 to 7,000 feet. Issues with this truck? Interior plastic scratches easily, front suspension easily upset over pavement irregularities/r.r. tracks/etc., and the most annoying- an incurable loud knocking from the engine under light load, in the initial five minutes of operation in temps under 45 degree fahrenheit. I'll detail this in a post and would truly appreciate any expertise anyone out there has on this subject. Thanks for listening.
 

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If the truck can't adjust for this then the truck needs service.

Clint
 

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Discussion Starter · #4 ·
cold weather, initial start-up engine noise

Thanks for the input. High-octane fuel doesn't cure it. Different weights of oil doesn't affect it. Have driven japanese vehicles exclusively since the 70's and this doesn't seem to be simple engine pinging/knocking due to fuel or timing issues. It only does it in cold weather. If it's 45 degrees out or lower, and i start the truck and drive it, i get an audible engine piston slap-like, loud knock sound upon even the lightest load. The colder the temp, the louder the sound and the longer the duration. If i coast, it stops. It doesn't do it at idle. It lasts for about the first 4 or 5 minutes, even after the truck has come up to temp. Dealership doesn't hear it(are they crazy?) which is ridiculous. Does this V6 have any issues with sludge? Maybe i oughta check the pan. At least warm weather is here, finally!
 

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