Summary: Rear wiper motors on many types of SUV’s and mini vans commonly fail. One reason they fail is due to infrequent use. Electric motors tend to work better when they are used often. Sometimes a rear wiper motor can be tapped lightly to make it work temporarily. This is a quick test (used a lot on Fords) that will help to verify there’s power present at the motor. The wiper motor may stop again before long, but knowing that the motor is getting battery voltage without having to take the trim panel off for testing is a definite plus. The vehicle featured in this car repair article is a Chevy, which doesn’t have the common Ford rear wiper problem. The 1999 S-10 Blazer hatch has been opened and closed many times over the years. This can cause the wiring from the body to the hatch to weaken over time much like breaking a wire hanger by bending it in the same position repeatedly.

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