1975 Pontiac Grand Prix Air Conditioning
Parts & Services
INFORMATION on the 1975 Pontiac Grand Prix
|Factory A/C Specs||Overview||Stats & Specs|
About the OEM Factory Air Conditioning System Originally Installed on the 1975 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 1975
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 1975 Grand Prix in context
The 1975 Grand Prix was the third 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.
75 vs 74 Front
In the 1975 Grand Prix, the front split grille was revised with fewer vertical bars. A “GP” logo hood ornament was added on top of the beaked “V.” The turn signals were still cut into the leading edge of the front fenders.
75 vs 74 Side
A thin chrome molding was added to the door panes on the 1975 Grand Prix, extending a short way onto the front and rear fenders.
75 vs 74 Rear
The only change in the rear of the 1975 Grand Prix was the elimination of the red-clear-red vertical design of the taillights and the addition of thin vertical ribs to them.
75 vs 74 Other
J, sportier SJ and more luxurious LJ (new this model year) styles were offered for the 1975 Grand Prix. In 1975, radial tires became standard. 1975 was the first year for the catalytic converter, which spelled the end of dual exhaust pipes (for 1st time in history of Grand Prix) and the detuning of the engines. Standard horsepower dropped significantly from 225 to 185 on the base J and from 250 to 200 on the SJ. Early 1975 models included a federally mandated system that prevented ignition unless the front seat belts were fastened but due to public backlash the federal mandate was rescinded and disconnection of the system allowed. Production declined again.
General Statistics & Specifications on the 1975 Pontiac Grand Prix
3rd Gen (1973 — 1977)
“Std” Body Type:
Other Body Types:
400 V8 185 hp
400 V8 170 hp, 455 V8 200 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 1975 Pontiac Grand Prix
- S6 Replacement Compressor
- 1975 Grand Prix Condenser
- 1975 Grand Prix Air Condtioning Controls
- 1975 Grand Prix Evaporator
- 1975 Grand Prix Air Conditioning Safety Switch
- 1975 Grand Prix Air Conditioning Hoses, Lines & Fittings
- 1975 Grand Prix Air Conditioning Rebuilt VIR
- 1975 Grand Prix Heater
- 1975 Grand Prix Air Conditioning Repair and Rebuild Services
- Other Replacement Parts?
- CONVERTING TO 134a