When is it time to change spark plug wires?

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Jun 19, 2003 | 01:13 PM

B18Redline

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From: VA, USA

When is it time to change spark plug wires?

What do you look for? Discoloration?.....because mine are sorta brownish.

Jun 19, 2003 | 01:40 PM

JimBlake

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Re: When is it time to change spark plug wires? (Redline07)

Check resistance with an ohm-meter, that's one way for them to fail.

They can fail by the insulation 'leaking' your spark out. Wait till dark, completely cold engine, take off sparkplug cover, turn off all the lights. Start engine & look for arcing. Sometimes when they arc like this I can't see any visible damage..

Jun 19, 2003 | 02:58 PM

TEG98

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From: CINCINNATI, OH, united states

Re: When is it time to change spark plug wires? (JimBlake)

they also should be changed if you can see any damage to the wire insulation or corrosion

Jun 19, 2003 | 03:42 PM

mr.beeks

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From: some where in a locked cage

Re: When is it time to change spark plug wires? (JimBlake)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JimBlake »</TD></TR><TR><TD CLASS="quote">Check resistance with an ohm-meter, that's one way for them to fail.

They can fail by the insulation 'leaking' your spark out. Wait till dark, completely cold engine, take off sparkplug cover, turn off all the lights. Start engine & look for arcing. Sometimes when they arc like this I can't see any visible damage..
</TD></TR></TABLE>

visible dammage is a grayish color on the isulation.