Thread: Glow plug light comes on occasionally while car running
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Old 09-14-2002, 10:28 PM
P.E.Haiges P.E.Haiges is offline
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Join Date: Jan 2000
Location: PA
Posts: 5,440
Seems like my '79 300SD did the same thing without the buzzer. Then after a while the GP stopped working. Engine started but I had to crank it longer.

How did I fix the problem? I R&R the GP cable connector where it plugs into the GP relay a few times. Viola, problem went away.

Its worth a try.

P E H
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