Ira51 Quoted:
Quote:
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always change the spark plug wires at EVERY plug change
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Why? Test them with a multimeter and save yourself the money.
[QUOTE.check the summit or jegs catologe for some MSD 8.5 mm wires they do a nice job and have a very low resistance and are priced less than what the dealer has [/quote]
Again Why? I am not trying to comdemn or play devil's advocate but if the wires are designed to carry the load in the first place go ahead and check them with a multimeter. If you suspect weak glow plugs and blame them on the wires stop snap diagnosing and verify power Volts direct current and Amps with a multimeter during the glow plug cycle at cold start. Check resistance at the glow plug and check each of them to see if they vary. They might vary from manufacturer to manufacturer, bad lots ect... Watch for load/current drop at the volt guage and that will give you a general idea if in fact if the glow system is working.