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If it is electronic (not cable driven) and both the speedometer and odometer are not working I would suspect the VSS (Vehicle Speed Sensor) is faulty. The VSS can be found on the tail end of the transmission. If only the speedometer doesn't work I would suspect the dash cluster has to be replaced with a new or good used one. Really need to know what year S10 Blazer you have.
What else can I help you with?
Fix vapor lock 98 s10 blazer?
fix vapor lock on 1998 chevy s10 2.2 liter 4 cylinder
How do you fix blower resistor on 2000 Chevy blazer s10?
Ain't no fixin it, you have to replace it with a new one.
How to fix 96 S10 Blazer starting problems?
what does it do
Will a 245x75x15 fix on a 2001 Chevy blazer 2dr?
will a 245x75x15 fix a 2001 chevy blazer 2dr
How do you fix a 1996 Chevy S10 Blazer transfer case?
there are many things that could potentially be wrong with your case. can u engage your 4wheel?
How do I fix or replace the high-low beam switch in a '91 Chevy s10 Blazer?
u have to take the hole thing apart to get to a small screw to take the switch out
I have a 1993 Chevy s10 blazer The heat works but you can hardly feel it. How would I fix this?
Need to know if the blower is working or not and if the air coming out is hot, warm or cold.
How can I fix a 1995 Chevy S10 Blazer 4x4 whose actuator works but won't engage?
check to see if your transfer case has to much fluid in it . remove upper plug .
How do you fix a Chevy Blazer starting problem?
trying to fix simular problem
You had your brake booster changed on your 97 s10 blazer now dash lights are out how do you fix that?
Just a suggestion, check your trailer lights harness for corrosion. They were taking the dash lights down in my chevy.
How do you fix code po420 for Chevy s10 blazer?
P0420 = Catalyst Efficiency Below Threshold (Bank1). Sounds like you probably need to replace the Bank 1 (drivers side) Catalytic converter.
How do you close a stuck sunroof on a 2002 Chevy Blazer?
take it to get fix
