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2013 Lexus GS2003 Toyota 4 runner , 69 Mercury Cougar, 1989 MB 300e 245,000(Sold),1979 300d 165,000m
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55 Posts
Discussion Starter · #1 ·
If you change the glow plugs on 79 300d, can you put the new style pencil plugs in and use the wire connetors so they are not in sequence?
Do you need the new relay to go with it or can you use existing?
 

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96 E300D
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817 Posts
I have made the swap on my 77 and just went from the original hookup on the fire wall at the fuse to my #5 then #4 and so on. Be sure to remove the ground wire on #1. Work for me for 2 years now. You will find that the glow plug light stays on longer than the later years that came with this style but it hasn't hurt anything yet.
 
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