Table 1 shows nine common engine and engine cooling related problems of the 1997 Honda Passport. The number one most common problem is related to the engine belts and pulleys (four problems). The second most common problem is related to the gasoline engine (two problems).
Always oil changes on time and maintenance. Since I had it, there was always a valve knocking. Spark plug melted from extreme heat then exploded into cylinder the pulverize. So I rebuilt the entire motor including new oil pump, timing belt, cam intakes, ect. And had valves professionally rebuilt. Read details...
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The valves rattle in the engine. When they rattle I check the oil level and it's fine. I found out. . . By no other choice. . . . That if I get on the interstate (causing the rpm's to go up) for a few miles, and then exit the interstate the valves stop rattling. Read details...