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GMC
C1500
Interior
Instrument Cluster
Gauges
Speedometer
Not Working
1984 Gmc C1500 Would Heater Motor Speedometer Stop Working Same Time
1984 GMC C1500
195,000 MILES
ANONYMOUS
MEMBER
1 POST
why would my heater motor and speedometer stop working at the same time
Jan 16, 2013 at 3:09 PM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
different circuits.
check all fuses with a test light. tap on the blower to see if the motor is bad,
i believe in 84, your speedo is cable controlled. check all cables for any breakage
Roy
Jan 16, 2013 at 7:13 PM
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