1991 MAZDA MPV LOSS OF POWER GOING UP HILL

Asked by Guru98XY7B May 09, 2022 at 03:59 PM about the 1991 Mazda MPV 3 Dr STD Passenger Van

Question type: Maintenance & Repair

3 Answers
202,675

Ed92626 answered 2 years ago

When an engine won't run right under stress, like climbing a hill or under hard acceleration, the problem is frequently a clogged catalytic converter. This restricted exhaust flow prevents the engine from running faster and can even cause the engine to overheat. In a 32 year old car, you don't have an effective OBD system, so this is where I'd first look.

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2,050

Fred answered 2 years ago

Maybe the fuel pump or a clogged fuel filter.

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