Thread: 560 plug wires
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Old 08-31-2003, 06:57 PM
BobK BobK is offline
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Join Date: Nov 2001
Location: North Central Kentucky
Posts: 1,061
I expect you are right on the money about the heat. Underhood temps seem quite high to me on my '87 560SEL. Think I may need a set on mine and on wife's SL. I have had similar problems with my 7.4L Suburban. They run real hot (195 t-stat from factory) and tend to use up wires. Gets even worse if you tow since temps go even higher plus need for max spark under high load.
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