Question about 1988 GMC C1500
if you are not having problems when there is more then1/5 tank in the car, you could well have a small hole in the fuel pick up pipe inside the fuel tank. when the fuel level gets below the hole, a small amount of air is sucket into the fuel line as well as fuel.
to repair this you would have to remove the tank, then remove the sender unit from the top of the tank, and replace the pipe, or possibly the complete sender unit.
if it is only a problem below 1/5 of a tank, then you have to ask yourself if it worth that amount of work at the minute, or if you just need to keep the fuel level above 1/5.
Posted on Apr 04, 2011
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Posted on Jan 02, 2017
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