1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,323 Posts
An intermittent crank sensor would fail regardless of fuel level. I doubt that it would fail only at a 1/4 tank. Next time it doesn't start, check for spark.
The fuel level sensor float may be hanging up inside the tank and there may also be wrong parts (pump or tank) causing problems. I have found some aftermarket (non-OEM) pumps very different than what came out of the car.
Mis-positioned pumps or bent float arms can also rub and stop on the inside wall of the tank. There should be an arrow on the pump and on the tank for lining up (clocking) the proper position.
I doubt that you have a 1/4 tank of water as fuel sloshing around while driving would cause stalls a lot of the time.
The tank should be drained and come down to remove the pump and be examined by a competent service technician.
The fuel level sensor float may be hanging up inside the tank and there may also be wrong parts (pump or tank) causing problems. I have found some aftermarket (non-OEM) pumps very different than what came out of the car.
Mis-positioned pumps or bent float arms can also rub and stop on the inside wall of the tank. There should be an arrow on the pump and on the tank for lining up (clocking) the proper position.
I doubt that you have a 1/4 tank of water as fuel sloshing around while driving would cause stalls a lot of the time.
The tank should be drained and come down to remove the pump and be examined by a competent service technician.