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Buick
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1987
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Electra Estate Wagon V8-307 5.0L
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Speedometer Head
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Testing and Inspection
Speedometer Head: Testing and Inspection
NOTE:
Before starting these tests, check fuse 18 by operating the cruise control (if equipped).
Symptom Table:
If your symptom is not listed in the symptom table, perform all the tests.
Test A Table 1:
Test A Table 2:
Test B Table 1:
Test B Table 2:
Test L: