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Temp Sensor\Sending Unit Questions

Old Mar 5, 2002 | 12:00 PM
  #1  
Justin Moore's Avatar
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From: Newmarket, ON
Car: 1986 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: 3.23
Temp Sensor\Sending Unit Questions

The following are found on thirdgen cars. My question is; which engines have the 3rd sensor installed in them??

1) Sender for the ECM : Intake manifold next to the thermostat housing. (2 wire)

2) sender for the guage : Driver side cylinder head between #1 and #3 cylinders. (1 wire)

3) Sender for the electric fan (if so equipped) : Passenger side cylinder head between #6 and #8 cylinders. (1 wire)
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Old Mar 5, 2002 | 12:11 PM
  #2  
Vader's Avatar
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Justin,

TBI cars with electric cooling fans, and TPI cars with a secondary electric cooling fan will have the swithc you described in #3.
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