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Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential cases of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

PROBLEM SYMPTOMS TABLE

Symptom Suspected area
Engine does not crank (does not start) STARTER
STARTER RELAY
ENGINE SWITCH
No initial combustion (does not start) ECM POWER SOURCE CIRCUIT 
FUEL PUMP CONTROL CIRCUIT 
ECM 
Engine cranks normally (difficult to start) FUEL PUMP CONTROL CIRCUIT 
INSPECTION Compression
Cold engine (difficult to start) Starter signal circuit  1
FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
Hot engine (difficult to start) Starter signal circuit  1
FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
High engine idle speed A/C signal circuit (compressor circuit) AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
ECM POWER SOURCE CIRCUIT 
Electronic throttle control system INSPECTION 
Air induction system  6
- PCV hose
Low engine idle speed A/C signal circuit (compressor circuit) AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
FUEL PUMP CONTROL CIRCUIT 
Electronic throttle control system INSPECTION 
Air induction system  6
- PCV hose
Rough idling INSPECTION Compression
FUEL PUMP CONTROL CIRCUIT 
Electronic throttle control system INSPECTION 
Air induction system  6
- PCV hose
Hunting (when idling) ECM POWER SOURCE CIRCUIT 
FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
Electronic throttle control system INSPECTION 
Air induction system  6
- PCV hose
Hesitation / Poor acceleration (poor driveability) FUEL PUMP CONTROL CIRCUIT 
A/T faulty MONITOR DRIVE PATTERN
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
Surging (poor driveability) FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
Engine stalls soon after starting FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
IGNITION SYSTEM
FUEL INJECTOR
Engine stalls during A/C operation A/C signal circuit (compressor circuit) AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
ECM 
Unable / difficult to refuel - Refueling valve (canister)