Forum Discussion
Chum_lee
Mar 13, 2020Explorer
wnjj wrote:
Is there an issue with the tank vent? Try running with the cap loose or off temporarily.
Read here: https://www.ford-trucks.com/forums/1159072-vacuum-buildup-in-gas-tank.html
Yes! ^^^^^^^ I've seen this several times. Very easy fix. Your fuel pressure should remain fairly consistent over a wide operating range. I only use OEM quality fuel pumps, no cheap Chinese parts in my fuel tanks. If no help confirm that the catalytic converter is flowing free.
Any fault codes?
Chum lee
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