1974 Pontiac Grand Prix Air Conditioning
Parts & Services
INFORMATION on the 1974 Pontiac Grand Prix
|Factory A/C Specs||Overview||Stats & Specs|
About the OEM Factory Air Conditioning System Originally Installed on the 1974 Grand Prix
AC System Type:
VIR (Valves-in-Receiver) system, which combines the expansion valve, POA valve & accumulator in one valve/Electric & vacuum controls. No safety switch in this factory system, which relied instead on discharge outlet on A6 compressor.
Single-groove, GM A6 compressor located on passenger side of engine. Learn more about GM compressors.
Tube and fin. Learn more about GM condensers.
Vacuum & electrically operated manual or automatic controls. Learn more about GM controls.
Located in engine compartment on the passenger side firewall. Learn more about GM evaporators.
VIR (Valves-in-Receiver) - Mounted to the Evaporator unit on the passenger side firewall. The VIR combines the expansion valve, POA valve and accumulator in one valve.Learn more about GM filter-driers.
Combination of hose clamps (suction and discharge) & pre-crimped liquid hose. Learn more about GM hoses-lines.
VIR (Valves-in-Receiver). Learn more about GM valves.
Grand Prix background and what was new in 1974
The Grand Prix as a model
The Pontiac Grand Prix was first introduced in 1962 as Pontiac’s answer to the Ford Thunderbird, slotted as a luxury, performance, mid-size car, between the larger Bonneville and the smaller Tempest in the Pontiac lineup.
The 1974 Grand Prix in context
The 1974 Grand Prix was the second of the A-body based 3rd generation (1973-1977). With the 3rd generation, the Grand Prix still continued its long hood/short deck design but introduced a fixed rear “opera” window and a concave top edge of the door panels.
74 vs 73 Front
In the 1974 Grand Prix, the front split grille sections were moved closer together and the vertical bars place entirely above the bumper. The headlight bezels were made taller and more vertically rectangular. The turn signals were still cut into the leading endge of the front fenders.
74 vs 73 Side
The side panels on the 1974 Grand Prix changed very little from the 1973.
74 vs 73 Rear
In the rear of the 1974 Grand Prix, the license plate and fuel filler were moved above the bumper and the taillights had a narrower center clear strip and were turned vertically, wrapping up onto the rear deck.
74 vs 73 Other
J (standard) and the sportier, more luxurious SJ styles were offered. With the 1973 OPEC oil embargo, fuel shortages and higher gas prices caused buyers to prefer smaller cars and Grand Prix sales suffered. Production dropped by 35%. Of the 99,817 produced, 13,841 were SJ. The 1974 model also included a federally mandated system that prevented ignition unless the front seat belts were fastened. Due to public backlash, the federal mandate was rescinded within the year.
General Statistics & Specifications on the 1974 Pontiac Grand Prix
3rd Gen (1973 — 1977)
“Std” Body Type:
Other Body Types:
400 V8 225 hp
455 V8 250 hp
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Note: The “Std” body type, dimension, price, weight and engine is for the best selling base model. Production totals are for all models combined.
Air Conditioning Solutions for your 1974 Pontiac Grand Prix
- S6 Replacement Compressor
- 1974 Grand Prix Condenser
- 1974 Grand Prix Air Condtioning Controls
- 1974 Grand Prix Evaporator
- 1974 Grand Prix Air Conditioning Safety Switch
- 1974 Grand Prix Air Conditioning Hoses, Lines & Fittings
- 1974 Grand Prix Air Conditioning Rebuilt VIR
- 1974 Grand Prix Heater
- 1974 Grand Prix Air Conditioning Repair and Rebuild Services
- Other Replacement Parts?
- CONVERTING TO 134a