mandobud16
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1987 Class A P30 Chevy 454 fuel pump/filter
I recently acquired a 1987 Executive Diplomat 35' motorhome with a Chevy 454 (about 30,000 miles) on a P37 Chassis. We took it out just over a month ago for about 200 miles and it was great. I took it out again last weekend and it started hesitating upon acceleration about 15 miles into the trip. Eventually it stalled. It would start and idle, but any load or acceleration applied to it would stall out. I've started the diagnosis process. I performed a test today. Ran the motorhome on both auxiliary and main fuel tanks. The motor seemed to be fine when running on the auxiliary tank, but stalled out after a few minutes of revving off of the main tank. Can I conclude that the problem lies with the main fuel pump/filter? I found the filters. There are two inline filters on near the back axle on the passenger side. I'll be changing those. I found 2 electrical devices that could be the main fuel pump. Can you help me identify which is the main fuel pump? the larger cylinder of the two, has a line in and line out, with two electrical terminal boots on the bottom (power/ground). The smaller cylinder, has four or six hoses connected to it (maybe fuel return hoses too)? It also has power/ground wires. What is this? Anyway, as always any help is appreciated here. Thanks!3.1KViews0likes5Comments
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