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Testing Glow Plugs

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Old Jul 12, 2015 | 04:35 PM
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Question Testing Glow Plugs

So how do we test the glow plugs using a test light?
1984 F350, 6.9L Diesel
 
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Old Jul 12, 2015 | 04:52 PM
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Question testing glow plugs

Hook the test lamp clip to battery positive post . When you touch the tip of the glow plug it should light up bright . If test lamp doesn't light . The glow plug is bad .
 
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