Spark plug wires

[LVJJJ]

How often should one replace spark plug wires? Got a '94 Suburban with newly installed 383 and #1 wire failed. Put on AC Delco wires about 16,000 miles ago in Feb of '18. Most of mileage was on them was towing in extreme conditons.

 

[mrrsm]

Worth Watching (Testing for Resistance B4 You Replace Them):

From ChrixFix:

... and from Jimmy (and his Lovely Wife) at his 1ROAD YT Channel:

More about 'Resitive' Spark Plug Wires:

 

[HARDTRAILZ]

I typically would do about 50K. Sounds like you hit them hard and it was a fresh motor, so with the relatively cheap prices if you shop around, i would probably do it again and keep yours for spares.

 

[LVJJJ]

Thanks HT, kinda what I was thinking.

Now I'm trying to figure out which ones to buy. I was told by a local expert (he used to teach repairs at a GM factory) that GM products do best with GM parts so the current wires are AC Delco professional. Rock Auto has some Standard Blue Streak that seem to have much less resistance at about the same $40 price. Also, there are a couple of different AC choices which I'm trying figure out what the difference is.

 

[HARDTRAILZ]

I have had good luck with NGK and Taylor myself.

 

[LVJJJ]

Got AC Delco spark plug wires, cap and rotor replaced. But it is still surging when first starting it up and until it warms up. Surged so bad at McD's while in line for my egg mcmuffin that it died. Runs strong and smooth once warmed up but still has a little surging. Wondering if its fuel, maybe I should get a new throttle body?

 

[Mooseman]

You should start a new thread for this surging issue for more responses.

 

[Mooseman]

For surging issue, please go to this thread:

NEED HELP - Surging 383

Got the 383 Stroker installed in the '94 GMC K1500, runs good and strong except for some surging, particularly upon start up and when cold. Doesn't do it much when hot. Engine has about 600 miles on it, have replaced the break-in oil and just replaced plug wires, rotor and cap with AC Delco...

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