Honda Civic Quiz
HVAC

A/C System Contamination Inspection (Except K24Z7)

In this manual: HVAC
Accessories — 57Body — 310Chassis — 96Electrical — 15HVAC — 39Powertrain — 300Moonroof/Sunroof — 9Roof Drainage — 5Wiper Arm/Nozzle Adjustment — 1ELD Removal and Installation — 1Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System) — 1Under-Dash Fuse/Relay Box Removal and Installation (KA models with Keyless Access System) — 1
~2min read

Inspection

  1. A/C System - Contamination Inspection

1.

If A/C compressor failure is diagnosed, always use this inspection to check the extent of contamination in the A/C system.


2.

Remove the discharge hose (A) from the A/C compressor. Then, swab inside the discharge hose and A/C compressor discharge port with a cotton swab.

If no metal, dark gray or black residue is found, no contamination is present from the A/C compressor. Replace only the A/C compressor.

If metal, dark gray or black residue is found, go to step 3.

3.

Remove the suction hose (D) from the A/C compressor. Then, swab inside the suction hose and A/C compressor suction port with a cotton swab.

If no metal, dark gray or black residue is found, go to step 4.

If metal, dark gray or black residue is found, replace the components listed in Repair Procedure C.

4.

Remove the receiver line (B) from the A/C condenser outlet. Then, swab inside the receiver line and A/C condenser outlet with a cotton swab.

If no metal, dark gray or black residue is found, go to step 6.

If metal, dark gray or black residue is found, go to step 5.

5.

Remove the A/C lines (C) from the expansion valve. Then, swab inside the expansion valve and the A/C lines with a cotton swab

If no metal, dark gray or black residue is found, replace the components listed in Repair Procedure B.

If metal, dark gray or black residue is found, replace the components listed in Repair Procedure C.

6.

Remove the discharge hose (A) from the A/C condenser inlet. Then, swab inside the discharge hose and A/C condenser inlet with a cotton swab.

If no metal, dark gray or black residue is found, replace the components listed in Repair Procedure A.

If metal, dark gray or black residue is found, replace the components listed in Repair Procedure B.

Repair Procedure list

Repair Procedure

Replace Components

A

Compressor

Discharge hose

Receiver/Dryer

O-rings from removed components

B

Compressor

Discharge hose

Receiver line and A/C lines

Condenser

Receiver/Dryer

O-rings from removed components

C

Compressor

Condenser

Receiver/Dryer

Expansion valve

Evaporator

All A/C hoses and lines

O-rings from removed components

Test yourself

A quick Honda Civic quiz: every answer comes with an explanation and a link to the manual page.