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Heating, Ventilation and Air Conditioning: Specifications Pontiac GTO IV

Automatic HVAC System ~262 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
A/C Refrigerant Filter Flare Nut15 N.m11 lb ft
Accumulator Bracket Clamp Bolt10 N.m89 lb in
Accumulator Bracket Mounting Nuts10 N.m89 lb in
Accumulator Hose Fitting to Accumulator41 N.m30 lb ft
Accumulator Hose to Evaporator Retaining Bolt16 N.m12 lb ft
Blower Motor Resistor Retaining Screws1.6 N.m14 lb in
Blower Motor Retaining Screws1.7 N.m15 lb in
Compressor Mounting Bracket Bolt50 N.m37 lb ft
Compressor Drain Plug20 N.m15 lb ft
Compressor Drive Belt Idler Pulley Bolt50 N.m37 lb ft
Compressor Drive Belt Tensioner Bolt25 N.m18 lb ft
Compressor Hose to Accumulator Retaining Bolt20 N.m15 lb ft
Compressor Hose to Compressor Retaining Bolt26 N.m19 lb ft
Compressor Hose to Condenser Fitting Nut24 N.m17 lb ft
Compressor Mounting Bolts40 N.m30 lb ft
Compressor Mounting Nut40 N.m30 lb ft
Compressor Mounting Stud9 N.m80 lb in
Compressor Pressure Relief Valve9 N.m80 lb in
Compressor Shaft Nut17.5 N.m13 lb ft
Defroster Duct Retaining Screws10 N.m89 lb in
Front Evaporator Tube to Condenser Retaining Bolt27 N.m20 lb ft
Front Evaporator Tube to Rear Evaporator Tube Retaining Bolt25 N.m18 lb ft
Floor Air Outlet Duct Retaining Screws1.6 N.m14 lb in
Heater Core Cover Retaining Screws1.6 N.m14 lb in
Heater Core Outlet Cover Retaining Screws1.6 N.m14 lb in
Heater Core Pipe Retainer Clamp Screw1.6 N.m14 lb in
Heater Core Retaining Clamp Screw1.6 N.m14 lb in
Heater Pipe Assembly Retaining Bolt16 N.m12 lb ft
Heater Pipe Bracket Retaining Nut10 N.m89 lb in
HVAC Module Case Half Screws1.6 N.m14 lb in
HVAC Module Retaining Bolts10 N.m89 lb in
HVAC Module Retaining and Sealing Nuts10 N.m89 lb in
Ignition Switch Retaining Bolts5.5 N.m49 lb in
IPC to Steering Column Bracket Retaining Screws3.5 N.m31 lb in
Negative Battery Cable Bolt15 N.m11 lb ft
Refrigerant Pressure Sensor4.75 N.m42 lb in
Temperature Actuator Retaining Screws1.5 N.m13 lb in
Vacuum Tank Retaining Screws3.5 N.m31 lb in
Valve Core11 N.m97 lb in

Fastener Tightening Specifications

Refrigerant System Capacities

ApplicationSpecification
MetricEnglish
PAG Oil GM P/N 12378526 for United States PAG Oil GM P/N 88900060 for Canada
Accumulator Replacement60 ml*2 oz.*
* Add PAG oil equal to the amount of oil drained from the accumulator plus the specified additional amount.
Compressor Replacement60 ml 12 oz. 1
Delphi Model V-7 service compressor is shipped dry
Condenser Replacement60 ml 12 oz. 1
Evaporator Replacement60 ml 12 oz. 1
Total System PAG Oil Capacity266.16 ml9 oz.
R-134a
Refrigerant Charge0.79 kg1.75 lb
1 If more than the specified amount of PAG oil was drained from a component, add the equal amount drained.

Refrigerant System Capacities

The Heating, Ventilation and Air Conditioning (HVAC) system is divided into 2 separate sections. The first, Heating, Ventilation and Air Conditioning, has all procedures that pertain to a HVAC component or function that is not specifically associated with the manual control system. The second, HVAC Systems - Manual, has all procedures specific to the Manual control system.

Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check will provide the following information

  1. The identification of the control modules which command the system.
  2. The ability of the control modules to communicate through the serial data circuit.
  3. The identification of any stored diagnostic trouble codes (DTCs) and their status.

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

Review the Description and Operation information to help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. The HVAC Description and Operation information is divided into

  1. «Air Delivery Description and Operation»(ref-201050-S25475966052005102400000) in HVAC Systems - Manual
  2. «Air Temperature Description and Operation»(ref-201050-S37423768802005102400000) in HVAC Systems - Manual

The Air Delivery Description and Operation contains the following topics

  1. HVAC Control Components
  2. Air Speed
  3. Air Distribution
  4. Recirculation Operation

The Air temperature Description and Operation contains the following topics

  1. HVAC Control Components
  2. Heating and A/C Operation
  3. Engine Coolant
  4. A/C Cycle

More articles — Heating, Ventilation and Air Conditioning