Evaporator Core (W/Diesel) R E P La C E M E N - GMC 1986 P-Truck Service Manual

433 497
418. Compressor
433. Motor
435. Accumulator/Dehydrator Assembly
497. Evaporator Blower Motor Assembly
Remove or Disconnect (Figure 55)
1. Parking lamp assembly.
2. Radiator overflow tank.
3. Blower motor insulation (481).
• Insulation through the hood opening.
4. Blower motor (482).
4
Install or Connect (Figure 55)
♦ -
1. Blower motor (482).
2. Insulation (481).
3. Radiator overflow tank.
4. Parking lamp assembly.
EVAPORATOR CORE
(W/DIESEL) REPLACEMENT
Remove or Disconnect (Figures 54 and 55)
1. Cold air intake.
2. Hood latch assembly and cable retainer a. id
place it out of the way.
3. Windshield solvent tank.
4. Discharge the A/C system.
435
502. A/C Harness
510. Resistor Assembly
511. Relay Assembly
512. Junction Block
513. Throttle Solenoid
Figure 61—A/C W iring - Engine Compartment
AIR CONDITIONING
im portant
• When removing A/C components, cap the
lin e s and
contamination.
Low pressure vapor line and move it out of the
5.
way.
6. Accumulator.
7. High pressure line inlet to the evaporator and the
connecting bracket.
8. Wiring harness going to the blower motor relay
and resistor.
9. Blower motor relay and resistor.
Fan shroud upper half.
10.
Radiator.
11.
Heater valve assembly bracket and move it out of
12.
the way.
Upper screws of the lower section.
13.
• Push it down and out of the way.
14. Insulation mounting screws.
15. Insulation through the hood opening.
Proceed with the A/C evaporator procedure.
16.
+ 4- Install or Connect (Figures 54 and 55)
1. A/C evaporator core procedure.
2. Insulation (481).
3. Insulation mounting screws.
4. Lower section.
1B-55
F-00327
o p e n in g s to p re ve n t