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Speedo and tranny problems 2009 Chevy Silverado 1500 LT 4WD, sometimes when I hit a bump the speedometer will drop to 0 and tranny will stay in 1st, will not shift. Another bump will sometimes make everything work correctly, sometimes not. Speedometer also drops when braking. Any ideas? |
1 Answer
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Jimm 2/8/2019 First step - check the battery terminal connections (clean and tight, no corrosion), and the ground (negative) cable connection at the end opposite the battery. Same consideration - should be clean and tight with no corrosion.
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