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Mercury Topaz Problems

Poor Performance, Hesitation on Acceleration, Possible Stalling on Mercury Topaz

Problem Description and Possible Solution

Outdated software in the engine control processor can cause poor engine performance, hesitation on acceleration, and possible stalling problems. The processor will need to be replaced to get the updated calibration.

(5 people reported this problem)

Mercury Topaz Vehicles With This Problem

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Average mileage: (–)
5 model years affected: 1990, 1991, 1992, 1993, more1994
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Brake problem? Or maybe a faulty head gasket cylinder?
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