Question about 1992 Dodge Dakota
Have you had the fuel tank inspected/cleaned? This may have been done whent he fuel pump was being replaced and there was access to your tank interior.
If you have crud in your tank, especially if it's leaves, paper or flakes of old coating/paint, then it can float around and slosh in your tank and at the most inopportune time get sucked over the fuel intake for the pump and choke off or restrict supply. This can give the symptoms you describe, where there are spells of repeated weird symptoms, and then it changes symptoms or appears to dissappear for a while when the crud floats away from the pump. As soon as the fluid motion of the tank brings it back over to the fuel intake, the restriction starts again. Then when you stop the car, and the suction stops and lets it drift off and fall to the bottom of the tank, it seems to be fine again until fuel flow again sucks the offending item back against the intake. I've seen this on three occasions in the past with the same symptoms as you describe and it also foxxed repair shops to no end. On one occasiosn a guy's solution to a rusty tank was to use a tank coating kit. However, if you don't prep the tank and follow the instructions precisely (which he did not) the coating doesn't bond and can pull away from the tank walls and break up into small sheets that can cause the issues I describe above.
Hope this helps
Posted on Jan 08, 2009
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