How to troubleshoot the EGR valve control solenoid?

1987 GMC JIMMY
90,000 MILES • 2.8L • 6 CYL • 4WD • AUTOMATIC
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ACTIVEAL
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How to troubleshoot.
Jan 11, 2025 at 3:21 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STRAILER
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That is a linear valve so it might be difficult to test but you can try a continuity test between the two coil windings.

Here is a guide and the EGR control valve wiring diagrams:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Check out the images (below). Please let us know what happens.
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Jan 11, 2025 at 9:20 AM
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