Review on π Enhance Your Vehicle's Performance with Motorcraft DY861 Glow Plug Switch by Todd Look
Don't buy this, look for a reliable alternative.
Bought and installed due to cold weather starting problems. Well that never fixed the problem and I assumed there was something else going on with my truck. I checked today and it's not working, looks like the relay is energized when voltage is applied to the coil but no voltage is applied to the glow plugs. I bought a cigarette lighter voltage reader and a USB charger and it became clear that the glow plugs are not interacting with this relay. I manually jumpered the main relay terminals and the voltage dropped as expected when the glow plugs turned on.
- Excellent overall performance
- Cord is shorter than other picks
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