If it has dual tanks, it has 3 pumps. A low pressure lift pump in each tank and a high pressure pump on the left frame rail near the back of the engine/front of the transmission area. There will also be a fuel filter between the frame pump and engine. Originally, the fuel pump relay was green. Replacements could be any color. If you can locate the engine control test connector (EEC4), normally on the right side middle of the engine compartment. It's trapezoid shaped and may be in a plastic cover that says EEC TEST on it. Hold the connector so the longest side is down. The lower right terminal is the fuel pump relay ground diagnostic terminal. Ground it with the key on and it will engage the pump relay. Does the check engine light come on when you turn the key on? The EEC power relay also provides power to the fuel pump relay.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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