Spark plug wires on 5.0gi 1999?

[lars11]

What's the life span for spark plug wires? Now, the engine runs, but are the wires life long service or?

 

[sethjon]

Re: Spark plug wires on 5.0gi 1999?

What's the life span for spark plug wires? Now, the engine runs, but are the wires life long service or?

Wires are normally good for many years. I doubt your wires are bad but to check them, feel them to see if they are brittle. Also, in darkness, while the engine is running, see if there is any arcing. What makes you think the wires could be bad?

 

[Don S]

Re: Spark plug wires on 5.0gi 1999?

From the service manual:

Check all high tension leads for proper resistance;
3,000-7,000 ohms per foot of lead length. Also check
for poor insulation, burning, cracking and deterioration
of the lead, and torn or cracked plug and distributor
cap boots.

Also look for corrosion on either end of the cables, that's a sure reason to replace.