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 MANUALSDODGE AND RAM1982MIRADA 3.7L ENG VIN EREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSELECTRONIC FUEL CONTROLTESTINGELECTRONIC FUEL CONTROL SYSTEM TESTSCHARGE TEMPERATURE & COOLANT SWITCH
1982 Dodge and Ram Mirada 3.7L Eng VIN E
Charge Temperature & Coolant Switch
1982 Dodge and Ram Mirada 3.7L Eng VIN ESECTION Charge Temperature & Coolant Switch
- Turn ignition off and disconnect wire from charge temperature switch. Connect 1 lead of ohmmeter to good engine ground (or to switch's ground terminal). Connect other lead to center terminal of coolant switch. Check for continuity.
- On a cold engine, continuity should be present (resistance less than 100 ohms). If not, replace switch. The charge temperature switch must be cooler than 60°F to obtain this reading. On an engine at normal operating temperature, the terminal should show no continuity. If it does, replace coolant switch.
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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.