Plug wire life expectancy

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Jul 16, 2009 | 11:25 AM

Stringfellow

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From: Kingston, Ontario, Canada

Plug wire life expectancy

What is a good milage schedule to replace the spark plug wires?

Jul 16, 2009 | 11:31 AM

Ice78Transam

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From: Naperville, Ill

When its needed; either by failure or cuts/frays in wire or insulation.

Jul 18, 2009 | 09:40 AM

bb5401000

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Mine lasted over 150,000 miles before they started cutting out.

Jul 18, 2009 | 09:51 AM

eseibel67

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From: Kitchener, ON

Hey fellow Canadian with an 01 Trans Am!

Plug wires aren't that expensive, they are very easy to change. And if they are worn out you are shorting yourself (literally and figuratively) on performance and economy. They wear with age, not just mileage.

Change them.

Jul 18, 2009 | 05:33 PM

hawaiic5

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bought a z06 plug wires for $40 on this forum

Jul 18, 2009 | 06:11 PM

brad8266

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Until they get cut or damaged dont even bother replacing them.

Jul 18, 2009 | 08:21 PM

LS6427

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11 1/2 years on my factory wires, the last 7 years with my 427ci. Close to 180,000 total miles.

They're perfect.

I put Taylor 10.4mm Thunderbolts on my 427ci, they suck *** and 5 of them broke at my first plug change with them after about 20,000 miles. I kept my factory wires and put them back on.

I;'m actually gonna change them out in a week or two just for the hell of it.

.