1988-’93 Caravan 2.5L, 3.0L; and
1990-’93 Caravan 3.3L.
Symptom: Hard or no start during cool weather, with hard fault code 22 in memory (non-magnum engines).
Problem: Defective coolant temperature sensor (CTS) wiring connections.
Test & Fix: The CTS sensor resistance should be 7,000-13,000 ohms at 70° F. If it isn’t, replace the sensor. If the sensor values are OK, proceed with the wiring repair by installing a new pigtail connector #4414901 and heat-shrink tubing #4419644.
Courtesy of IDENTIFIX.
For additional tech tips, visit www.identifix.com.