Wanted to get some advice.

I replaced the glow plug module on my '87 300 TD a few years back - but it seems like every year once it starts getting cold I have a short right there at the two wiring plugs connecting to the glow plug module - and hence no glow plug firing. I am assuming this is just oxidation on the wiring connectors.

I am pretty sure last time I used some dielectric grease when I put the wiring connectors back on the module - but it just seems strange to me that this seems to happen every year when it starts to get cold. The glow plug module cover is a little bit of a nuisance to get off - and getting it off to take the connectors off and on to get the car to start is also a nuisance.

Is this sort of thing expected with a 25 year old vehicle - or should be looking at replacing the wiring connectors or something?

Thanks!

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Jimmy M.

87 300TD 230k mi's