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 MANUALSCHEVROLET1993FORWARD CONTROL 7.4 NREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)A/C SYSTEM GENERAL SERVICINGCOMPRESSOR APPLICATIONS & BODY DESIGNATIONSCOMPRESSOR APPLICATIONS
1993 Chevrolet Forward Control 7.4 N
Compressor Applications
1993 Chevrolet Forward Control 7.4 NSECTION Compressor Applications
NOTE:
Due to late changes, always refer to underhood A/C Specification Label in engine compartment or A/C compressor label while servicing A/C system. If A/C Specification Label and specifications differ, use label specifications.
COMPRESSOR APPLICATIONS
| Application (1) | Compressor | ||
|---|---|---|---|
| "A" & "W" Bodies | Harrison HR6-HE 6-Cyl. or Harrison V5 5-Cyl. | ||
| "B" & "D" Bodies | Harrison HR100T/HR110-MD 4-Cyl. | ||
| "C", "E", "F", "H" & "K" Bodies | Harrison HR6-HE 6-Cyl. | ||
| "J", "L" & "N" Bodies | Harrison V5 5-Cyl. | ||
| "Y" Body | Nippondenso 10PA20 10-Cyl. | ||
| "Z" Body (Saturn) | Zexel Rotary Vane | ||
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COMPRESSOR APPLICATIONS
| Application (1) | Compressor | |||
|---|---|---|---|---|
| "C" & "K" Series | Harrison HR110T 4-Cyl. | |||
| "G" Series | ||||
| Except 6.2L Diesel | Harrison HR6-HE 6-Cyl. | |||
| 6.2L Diesel | Harrison A6 6-Cyl. | |||
| "L" & "M" Series | Harrison HR6-HE 6-Cyl. | |||
| "S" & "T" Series | Harrison HR100T 4-Cyl. or Harrison V5 5-Cyl. | |||
| "U" Series | Harrison HR6-HE 6-Cyl. or Harrison V5 5-Cyl. | |||
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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.