Rough idle and little throttle response 4.0 inline 6.
Got gas at a marathon station, which I usually don't
do, and then drove about 20 miles to school with
no problems. After sitting in the parking lot ideling
for about 20 mins it started to rough idle on one
cylinder, then multiple cylinders. Tried giving it
throttle and it I had little throttle response, once I
got to rev up to 3k, I held it there for about 15
seconds and it was fine after. It has had spark plug
issues in the past. It also was raining when I got
gas. Any help would be great.
Maybe low quality fuel, some water, debris, it happens. Check the fuel filter and the tank at best if this happens again.
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