How to Diagnose a VVT Solenoid on a GM 2.4L
Step by step instructions of how to diagnose a variable valve timing solenoid on a GM 2.4LHow to Diagnose a VVT Solenoid on a GM 2.4L
- Gain access to the VVT solenoids by removing the air cleaner outlet duct and engine cover - Watch
- Locate and unplug the VVT solenoid to be tested - Watch
Tip: Exhaust VVT solenoid (Black connector) is located toward rear of the engine and Intake VVT (Grey connector) is located towards the front of the engine
- Set up your multimeter to read resistance by switching to the Ohm setting - Watch
- Place one multimeter lead on each terminal of the VVT solenoid to measure the solenoids resistance - Watch
Tip: Use terminal adapters if available for a more secure testing connection (**See below**)
- Compare multimeter reading with solenoid specification (8-13 Ohms). If the solenoid tests outside of the specification, the VVT solenoid is faulty, and replacement is necessary
Tip: If the issue is intermittent, try lightly wiggling the VVT solenoid terminals while testing, this can help expose poor internal connections within the solenoid
- Follow link for step by step instructions on GM 2.4L VVT solenoid replacement
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