Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1993BLAZER FULL SIZE V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSAUTOMATIC TRANSMISSION/TRANSAXLECOMPONENTS
1993 Chevrolet Blazer Full Size V8-350 5.7L
Components
1993 Chevrolet Blazer Full Size V8-350 5.7LSECTION Components
COMPONENTS
Torque Converter Clutch Solenoid
TCC solenoid resistance should he 20-40 ohms minimum when measured at 20°C (68°F). Maximum solenoid current flow should not exceed 1.5 amps.
Transmission Pressure Control Solenoid
Force High Force Low Line Pressure
+ 0% Duty Cycle 0 Amps Maximum
+ 60% Duty Cycle 1.1 Amps @ 4-5 V Minimum
Transmission Pressure Control Solenoid resistance should measure 3.5 4.6 ohm when measured at 20°C (68°F).
1-2 and 2-3 Shift Solenoids
Shift solenoid resistance should measure 20-40 ohms minimum when measured at 2O°C (68°F). Shift solenoid current flow should not exceed 0.75 amps. The shift solenoid should energize at a voltage of 7.5 volts or more (measured across the terminals). The shift solenoid should de-energize when voltage is one volt or less.
Transmission Fluid Pressure Switch Assembly
Vehicle Speed Sensor
Sensor resistance should he 1260-1540 ohms when measures at 2O°C (68°F). Output voltage will vary with speed from a minimum of 0.5 Volts AC at 100 RPM, to more than 100 Volts AC at 8000 RPM.
3-2 Control Solenoid
3-2 Control solenoid resistance should he a minimum of 9-14 ohms at 20°C (68°F). It is operated using pulse width modulation at a frequency of 50 Hz.
Transmission Fluid Temperature Sensor
TRANSMISSION SENSOR - TEMPERATURE TO RESISTANCE TO VOLTAGE
(approximate)
°C °F RESISTANCE VOLTS
-40 -40 100544 5
-28 -21 52426 4.78
-16 10 18580 4.18
-4 23 12300 3.84
0 32 9379 3.45
7 40 7270 3.20
19 68 3520 2.56
31 86 2232 1.80
43 110 1200 1.10
55 131 858 3.25
67 145 675 2.88
79 176 333 2.24
91 194 241 1.70
103 213 154 1.28
115 239 115 .96
127 260 79 .64
139 284 60 .32
151 302 47 .00
Torque Converter Clutch Solenoid
TCC solenoid resistance should he 20-40 ohms minimum when measured at 20°C (68°F). Maximum solenoid current flow should not exceed 1.5 amps.
Transmission Pressure Control Solenoid
Force High Force Low Line Pressure
+ 0% Duty Cycle 0 Amps Maximum
+ 60% Duty Cycle 1.1 Amps @ 4-5 V Minimum
Transmission Pressure Control Solenoid resistance should measure 3.5 4.6 ohm when measured at 20°C (68°F).
1-2 and 2-3 Shift Solenoids
Shift solenoid resistance should measure 20-40 ohms minimum when measured at 2O°C (68°F). Shift solenoid current flow should not exceed 0.75 amps. The shift solenoid should energize at a voltage of 7.5 volts or more (measured across the terminals). The shift solenoid should de-energize when voltage is one volt or less.
Transmission Fluid Pressure Switch Assembly
Transmission Fluid Pressure Switch Assembly Specifications:
Vehicle Speed Sensor
Sensor resistance should he 1260-1540 ohms when measures at 2O°C (68°F). Output voltage will vary with speed from a minimum of 0.5 Volts AC at 100 RPM, to more than 100 Volts AC at 8000 RPM.
3-2 Control Solenoid
3-2 Control solenoid resistance should he a minimum of 9-14 ohms at 20°C (68°F). It is operated using pulse width modulation at a frequency of 50 Hz.
Transmission Fluid Temperature Sensor
TRANSMISSION SENSOR - TEMPERATURE TO RESISTANCE TO VOLTAGE
(approximate)
°C °F RESISTANCE VOLTS
-40 -40 100544 5
-28 -21 52426 4.78
-16 10 18580 4.18
-4 23 12300 3.84
0 32 9379 3.45
7 40 7270 3.20
19 68 3520 2.56
31 86 2232 1.80
43 110 1200 1.10
55 131 858 3.25
67 145 675 2.88
79 176 333 2.24
91 194 241 1.70
103 213 154 1.28
115 239 115 .96
127 260 79 .64
139 284 60 .32
151 302 47 .00
Transmission Sensor Resistance VS Temperature:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.