A different year and model. I had my Glow Plug light stop going on at all. But, the Engine started normally and ran normally once it started. So I know that the Glow Plugs were working OK.

I checked the resistance of the Plugs at the Glow Plug Wire connectors and found no issues. So I just drove it that way. (A basic place to test when ever your Glow Plug Light is acting oddly.)

Not quite a year later the Glow Plug Light started working normally with out any intervention on my part and it has been working OK for 6 months. (No temp sensor on the Engine. Note that if you had a temp sensor sometimes the connections need to be checked.)

As long as it started normally I do not care about the Glow Plug Light. The hardest part of the issue was convincing my Wife not to worry about the Glow Plug Light not going on.

__________________
84 300D, 82 Volvo 244Gl Diesel