Quote:
Originally Posted by koolfrog
After facing charging problems and replacing alternator and battery and cleaning all my contacts and grounds , I realized ( too late ) that the problem seems to be from the glow plug relay .It comes on , the car start fine , but i cannot hear it " click off " and the voltage indicating a low value , below 12V tells me that the plugs are still on , even after 3 or 4 minutes . Is my relay bad ? i would hate to fork out another $250 , only to find out that there was another way !
It's a 1979 300SD ( W116)
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Well, you could do what I used to do with mine before I replaced it. After you get the car started, pop the hood and unplug the connector to the glow plugs. Pain in the rear for sure but it will get you by. I did that with mine for a few months until I found a good used one.