SOURCE: 94 s10 4x4 will not lock in
I have this problem on my 95 S10 blazer and found the switch on the dash was the problem.
Good luck
Rob
SOURCE: Where is the dimmer switch located in a 94 Chevy
It is the thumb wheel just to the right of the headlight switch. Runs up and down. Also just below air vent.
SOURCE: need wiring diagram for the ecm on a 94 chevy s10
Throttle Position Sensor (TPS) is connected to the throttle shaft on the
throttle body. It is a potentiometer with one end connected to 5 volts
from the VCM and the other to ground. A third wire is connected to the
VCM to measure the voltage from the TPS. As the throttle valve angle is
changed (accelerator pedal moved), the output of the TPS also changes.
At a closed throttle position, the output of the TPS is low
(approximately 0.5 volts). As the throttle valve opens, the output
increases so that, at wide-open throttle, the output voltage should be
approximately 4.5 volts. By monitoring the output voltage from the TPS,
the VCM can determine fuel delivery based on throttle valve angle
(driver demand).
Fig. 1: Common Throttle Position Sensor (TPS) wiring diagram (wire
color, terminal identification/location may vary on certain models)
In addition, I send you some wiring diagrams that coud helpful (click image for zoom)...
Fig. 7: 1996 GM 4.3L Engine Schematic
Fig. 10: 1996-1997 GM S10/Blazer Chassis Schematic
Hope this helps.
Its on the drivers side of cowl listed in the manual but also found this listed. Good luck. The fuel pump relay is behind the glove box, under a small cover. There are three relays present, fuel pump relay, horn and fog lamp relays. Go by wire color to identify the fuel pump relay, Orange, Red, Black/White, Dark Green/White, Gray.
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