Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1987FIFTH AVENUE 5.2 4REPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMEFC SYSTEM
1987 Chrysler Fifth Avenue 5.2 4
EFC System
1987 Chrysler Fifth Avenue 5.2 4SECTION EFC System
- Description
- Operation
- Removal & Installation
- Testing
- Preliminary Checks
- No Start Test 1 - Checking For Spark At Plug Wires
- No Start Test 2 - Checking For Fuel In Carburetor
- No Start Test 3 - Checking For Fuel Fouled Spark Plugs
- No Start Test 4 - Engine Timing Check
- No Start Test 5 - Ignition Coil Spark Check
- No Start Test 6 - Ignition Coil Primary Windings Resistance
- No Start Test 7A - Distributor Pick-Up Coil Resistance Check
- No Start Test 7B - Distributor Start Pick-Up Coil Resistance Check
- No Start Test 8 - Ignition Switch Voltage Supply To Computer Check
- No Start Test 9 - Fuel Pump Pressure Check
- Cold DRIVEABILITY Test 1 - Choke Position Check
- Cold DRIVEABILITY Test 2A - Choke Vacuum Kick Check (2-Bbl.)
- Cold DRIVEABILITY Test 2B - Choke Valve Angle Check (4-Bbl.)
- Cold DRIVEABILITY Test 3 - Air Cleaner Heated Air Intake System
- Cold DRIVEABILITY Test 4 - Charge Temperature Sensor CIRCUITCHECK
- Cold DRIVEABILITY Test 5 - Choke Plate Position With Engine Running Check
- Cold DRIVEABILITY Test 6 - EGR System Check
- Cold DRIVEABILITY Test 7 - Spark Plug Check
- Cold DRIVEABILITY Test 8 - Secondary Ignition Check
- Cold DRIVEABILITY Test 9 - Battery Voltage To Computer Check
- Cold DRIVEABILITY Test 10 - Bowl Vent Valve Check
- Cold DRIVEABILITY Test 11 - Start-To-Run Pick-Up Coil Transfer Circuit Check
- Cold DRIVEABILITY Test 12 - Ignition Timing Check
- Cold DRIVEABILITY Test 13 - Idle Rpm Check
- Cold DRIVEABILITY Test 14
- Warm DRIVEABILITY Test 1 - Carburetor Switch Check
- Warm DRIVEABILITY Test 2 - Charge Temperature Switch Circuit Check
- Warm DRIVEABILITY Test 3 - Choke Position With Engine Running Check
- Warm DRIVEABILITY Test 4 - Start-To-Run Pick-Up Coil Transfer Circuit Check
- Warm DRIVEABILITY Test 5 - EGR System Check
- Warm DRIVEABILITY Test 6 - Secondary Ignition System Check
- Warm DRIVEABILITY Test 7 - Air Switching System Check
- Warm DRIVEABILITY Test 8 - Bowl Vent Valve Check
- Warm DRIVEABILITY Test 9 - O2 Feedback System Check
- Warm DRIVEABILITY Test 10 - Idle Control System Check
- Warm DRIVEABILITY Test 11 - Ignition Timing System Check
- Warm DRIVEABILITY Test 12 - Idle Rpm Check
- Warm DRIVEABILITY Test 13 - Heated Air Intake System Check
- Warm DRIVEABILITY Test 14
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.