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Wire You Walking? - Tech

Chevy Pickup Trucks
One is the engine harness.... 
   
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Chevy Pickup Trucks
One is the engine harness. It runs along the firewall and picks up the distributor and starter.
Chevy Pickup Trucks
The other is the forward lamp... 
   
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Chevy Pickup Trucks
The other is the forward lamp harness. It runs along the driver-side fender and radiator support. These harnesses can be updated to an HEI distributor and an internally regulated alternator (both worthy upgrades).
Chevy Pickup Trucks
Each of these looms is formed... 
   
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Chevy Pickup Trucks
Each of these looms is formed inside its own plastic gutter, making installation a snap.
Chevy Pickup Trucks
Again, we see probable cause... 
   
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Chevy Pickup Trucks
Again, we see probable cause for replacement as we work our way to the next harness in succession: the underdash section. It includes the fuse block that bolts to the firewall inside the cab.
Chevy Pickup Trucks
This harness is a little tough... 
   
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Chevy Pickup Trucks
This harness is a little tough to access, but some frustration can be alleviated by removing the instrument cluster.
Chevy Pickup Trucks
This is accomplished by removing... 
   
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Chevy Pickup Trucks
This is accomplished by removing the steering column strap, lowering the column, and removing the gauge unit. Since we are installing a new one, this will fit right into sequence.
Chevy Pickup Trucks
Now that he can see behind... 
   
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Chevy Pickup Trucks
Now that he can see behind the dash,...
Chevy Pickup Trucks
...Stan proceeds to disconnect... 
   
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Chevy Pickup Trucks
...Stan proceeds to disconnect the old harness and reconnect the new following the wires until the old harness is free and the new one is in its place.
Chevy Pickup Trucks
With the underdash connections... 
   
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Chevy Pickup Trucks
With the underdash connections made,...

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Chevy Pickup Trucks  Chevy Pickup Trucks
Chevy Pickup Trucks  Chevy Pickup Trucks
 
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