Spark plug wires-Age or miles?

[live2_4x4]

Should spark plug wires be replaced based on age of vehicle or mileage used. I have a 2001 E-250 cargo van I use for work and it has 183,000 kms(approx 113,000 miles) on it and will be doing another tune up soon, Should I replace the wires because of the mileage or leave them alone??

 

[aldive]

It it were mine, I would replace plugs and wires.

 

[SVO]

It it were mine, I would replace plugs and wires.

Ditto, but if you really must know it is actually baised on resistance.

 

[live2_4x4]

Thanks

I figured it was about time for both. What about O2 sensors?, alot of parts places around here push new O2 sensors as part of a tune up.
Glen.

 

[aldive]

I figured it was about time for both. What about O2 sensors?, alot of parts places around here push new O2 sensors as part of a tune up.
Glen.

Test their function with a scanner and replace if out of range.

Good luck ....

 

[SVO]

Test their function with a scanner and replace if out of range.

Good luck ....

Or slow switching.