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Old 06-28-2021, 12:36 PM   #26
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89_740Turbo's Avatar
Join Date: Apr 2018
Location: Central New Jersey

I was driving in my old 740 during a rainstorm and had to drive through a big puddle because I couldnt switch lanes. I was running IPD lowering springs so, closer to the water haha. When I woke up the next day and turned it on, it was puttering and sputtering. Sounded like stomach ache farts. Anyway, I checked the spark plugs and spark plug wires - discovered that water has affected 1 of my spark plugs and moisture was inside 2 spark plug wires. I changed the spark plug, checked every other one too, dried out the spark plug wires and opened the distributor and sprayed a little wd40 on it to remove any moisture. After that, the sputtering and puttering stopped and it ran smoothly again.
1989 744Ti
1988 744Ti
1986 744GLE (RIP)
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