Glow plug test results?

[pinebeatle]

Some of the glow plugs read 0.00 ohms and some of them 0.01 so I would think they need replaceing? when I put a test light on them the light is on. The GPR is getting 12.5 v and when the key is on the glow plug side of relay is 10.5 v -is that voltage drop ie: 2 v? ---not sure if it good or bad. Thanks for your help

[Patrick Feeley]

Sounds like you need new plugs, assuming your meter is accurate. Is the battery side of the relay have the same 12.5V when the key is on and relay activated? If so, your relay is bad (I like to place the meter leads on the relay's large terminals ... one lead on the battery side and one on the glowplug side ... that measures the drop directly). Cheers!

[pinebeatle]

Originally Posted by Patrick Feeley

Sounds like you need new plugs, assuming your meter is accurate. Is the battery side of the relay have the same 12.5V when the key is on and relay activated? If so, your relay is bad (I like to place the meter leads on the relay's large terminals ... one lead on the battery side and one on the glowplug side ... that measures the drop directly). Cheers!

Thanks For the info--Cheers