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DELOREAN WORKSHOP MANUAL - Free

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IM:10:02<br />

Heating and Air Conditioning<br />

TROUBLE SHOOTING CHART<br />

This chart refers specifically to the Sankyo compressor. During diagnosis follow the inspection procedures<br />

in the sequence shown until a defect is found. Then perform the repair in the Cause and Remedy Section. If<br />

this repair does not fully solve the problem, proceed to the next Inspection Step.<br />

05<br />

C<br />

0<br />

o<br />

• CJ<br />

o<br />

(0<br />

3<br />

V)<br />

3<br />

C<br />

3 5<br />

Symptom Problem Diagnosis and Inspection Cause and Remedy<br />

3 S ><br />

cc = =<br />

Unusually high suction<br />

Pressure with unusually<br />

low discharge pressure<br />

Unusually low<br />

suction and discharge<br />

pressure<br />

Intermittent or<br />

Inoperative<br />

Rough Running<br />

Clutch engaged<br />

Clutch disengaged<br />

"chattering"<br />

STEP<br />

SEQUENCE<br />

1 Compress Failure<br />

Check for low<br />

Refrigerant Charge<br />

2 teak Check Compressor<br />

INSPECTION<br />

PROCEDURE<br />

3 teak Check and Diagnose System<br />

1 Check Belt Tension<br />

2 Check Clutch Air Gap<br />

« Check Clutch Volts. Amps.<br />

J Coil Lead Wire<br />

4 Shaft Turning Smoothness Test<br />

m Check Compressor<br />

' Mounting Components<br />

2 Check Engine Components<br />

Check for Intermittent or<br />

Slipping Clutch<br />

A Check for Proper<br />

2 Refrigerant Charge<br />

5 Check Clutch Bearing<br />

6 Oil Level<br />

7 Shaft Turning Smoothness Test<br />

8 Remove Valve Plate and Inspect<br />

1 Check Air Gap<br />

M Replace<br />

Compressor<br />

Replace or Repair<br />

Shaft Seal Leak<br />

Service Port<br />

Cylinder Head Leak<br />

Gasket Leak<br />

Oil Filler Plug Leak<br />

Cracked Cylinder Block<br />

Front Housing "0" Ring Leak<br />

Adjust Air Gap<br />

Replace or Repair<br />

Broken Lead Wire<br />

Clutch Coil Oefect - Internal<br />

System Ground 'See Svstem<br />

Manual)<br />

Compressor Failure - Internal<br />

Adjust Air Gap - Defective Coil<br />

Re-charge and Re-check (Step 4)<br />

Replace Bearing<br />

Restore to Proper Level<br />

Compressor Failure (Internal)<br />

Replace or Repair<br />

Broken Discharge Valve Reed<br />

or Retainer<br />

Broken Suction Valve Reed<br />

Broken Gasket<br />

Replace or Repair<br />

Adjust Air Gap<br />

Defective Clutch Pulley or<br />

Front Plate<br />

PAGE

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