Markeb01 Build Thread

[markeb01]

I’ve been experiencing some infrequent and random surging/stalling at speeds over 60 mph, almost like the engine was starving for fuel. Since everything in the fuel system is new except the filter, I figured that was the likely culprit. I have a canister style that is original to the truck:



It’s mounted on the passenger side frame rail just below the seat. I changed it once when I installed the Rock Valley fuel tank at the rear of the frame back in 1998, so the filter served for 15 years. I’ve always been reluctant to change it for fear of dealing with a tank full of gas spewing out while the element is being replaced. I needn’t have worried.

With roughly ¼ tank of gas in the tank, I jacked the front of the truck up as far as I could get it on the sloped driveway raising the filter above level of the gas tank. I unscrewed the filter can and only a few ounces of gas dribbled out. The filter was replaced and reinstalled in a minute or two. Next time I won’t feel the need to wait so long:



I dissected the old filter removing the ends and splitting the perforated shroud around the paper element. The folded material was stretched out flat to reveal a reasonably substantial amount of debris in the bottom of the pleats. Thankfully a 20 mile test drive on the new filter showed no signs of surging! For anyone else that may find this type of filter on your original truck, the part number for the AC filter assembly is GF-62-C. The part number for the Wix filter cartridge is 33271. I picked one up at O’Reilly’s for less than $4.00. Napa previously carried the same cartridge as part number 3271, but no longer list it as available.