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 MANUALSEAGLE1994SUMMIT WAGON AWD L4-1795CC 1.8L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORTESTING AND INSPECTION
1994 Eagle Summit Wagon AWD L4-1795cc 1.8L SOHC
Crankshaft Position Sensor: Testing and Inspection
1994 Eagle Summit Wagon AWD L4-1795cc 1.8L SOHCSECTION Testing and Inspection
TROUBLESHOOTING HINTS
HINT 1: if unexpected shocks are felt during driving or the engine stalls suddenly during idling shake the crankshaft position sensor harness. if this causes the engine to stall. poor contact of the sensor connector is suspected.
HINT 2: if the crankshaft position sensor outputs a pulse signal when the ignition switch is turned to ON (without starting the engine) the crankshaft position sensor or engine control module is probably defective.
HINT 3: If the tachometer reads 0 RPM when the engine that has failed to start is cranked. faulty crankshaft position sensor or broken timing belt is suspected.
HINT 4: If the tachometer reads 0 RPM when the engine that has failed to start is cranked the primary current of the ignition coil is not turned on and off. Therefore troubles in the ignition circuit and ignition coil or faulty ignition power transistor is suspected.
HINT 5: If the engine can be run at idle even though the crankshaft position sensor reading is out of specification troubles are often in other than the crankshaft position sensor. [Examples]
a. Faulty water temperature sensor
b. Faulty idle air control motor
c. Poorly adjusted basic idle speed
HARNESS TESTING
SCAN TOOL TESTING
HINT 1: if unexpected shocks are felt during driving or the engine stalls suddenly during idling shake the crankshaft position sensor harness. if this causes the engine to stall. poor contact of the sensor connector is suspected.
HINT 2: if the crankshaft position sensor outputs a pulse signal when the ignition switch is turned to ON (without starting the engine) the crankshaft position sensor or engine control module is probably defective.
HINT 3: If the tachometer reads 0 RPM when the engine that has failed to start is cranked. faulty crankshaft position sensor or broken timing belt is suspected.
HINT 4: If the tachometer reads 0 RPM when the engine that has failed to start is cranked the primary current of the ignition coil is not turned on and off. Therefore troubles in the ignition circuit and ignition coil or faulty ignition power transistor is suspected.
HINT 5: If the engine can be run at idle even though the crankshaft position sensor reading is out of specification troubles are often in other than the crankshaft position sensor. [Examples]
a. Faulty water temperature sensor
b. Faulty idle air control motor
c. Poorly adjusted basic idle speed
HARNESS TESTING
Crankshaft Position Sensor Harness Test:
SCAN TOOL TESTING
Crankshaft Position Sensor:
RENDER: 1.0x
NO RELATED
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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.