Who's running the oldest set of spark plug wires? (1 Viewer)

[darnold87]

Alright, everyone come clean, what's the date on your spark plug wires???
I feel a little ashamed... my plug wires say 1998 on them...
I'll be calling CDan very soon with a list of tune-up parts.
The Cruiser is still runing great, but really deserves a nice little tune-up.

 

[Twiggles]

I just recently replaced wired marked 1994!

 

[Yotato]

Does this count: Original OEM 1991 that came with on my 91 4Runner. I only replace wires when they don't meet the resistance as per FSM.

 

[sjcruiser]

The truck's manufactured in Dec. 1997 so that's 13+ years (124.5 K miles) and still going strong!

 

[jjfj80]

I replaced my plug wires 2 months ago, and they were the
original '91 wires, and still within spec. 03/91 on door sticker.

JJ

 

[mshelby]

I replaced mine in November after buying the truck and they were the originals from 91.

 

[Tapage]

and I was worried about wifes cruiser ones .. ( 99 cruiser .. )

 

[azTony]

Just replaced mine on the 93 and they read 1993. Very brittle to the touch.

 

[jfz80]

Running the oem 1995 wires untill you just jinxed them

ohm cruiser cruiser cruiser

 

[super90]

I consider these a wear item. After 100k miles, I replace them regardless.

 

[kidglove13]

2007 here, oops wrong year they are too new for this thread.

 

[livinoffroad]

Original wires on mine 140K+

Does this count: Original OEM 1991 that came with on my 91 4Runner. I only replace wires when they don't meet the resistance as per FSM.

I tested the resistance on my original wires (dated 1995) 10/20/2008, @121122 miles, and found the following:
#1) 7.35 K ohm
#2) 8.82 K ohm
#3) 12.52 K ohm
#4) 11.90 K ohm
#5) 15.26 K ohm
#6) 16.76 K ohm

FSM spec is "maximum 25 K ohm per cord"

Interestingly, you can see how, as the wires get longer, the resistance increases (duh), but I am wondering if, as you go further back towards higher heat exposure in the rear of the engine compartment, if the wires are "baked" into a higher resistance value over time??

Has anyone taken resistance readings from a new set for comparison with my numbers??

 

[Ihasfip]

201k miles. OE 94 wires. Need to change them. I'm lazy though...

D

 

[Wallverine]

still orig here 97 but after seeing my hoses fall apart at a touch I may be replacing 152k on these

 

[rubberduck]

216k on my 96 originals. Called Dan today.

 

[djsolution]

I know this is cheating but when I was tuning up my '88 FJ62 last year I replaced a set of 1987 marked wires. Imagine my surprise when my idle improved dramatically post-tuneup! (Disclaimer: I was NOT the original owner!)

 

[lndcruz]

Mine had the original ones from 1995 with 175k. Replaced them last year. Last thing I want to happen on a long trip is have a spark plug wire go bad.

 

[pkorrupted]

1991 FJ80 with 141K, OE plugs. They crumbled off.

 

[wakesetter]

for those of you that replaced them, how much were the replacements and did you notice an improvement in performance?

Thanks

 

[Wrench]

I tested the resistance on my original wires (dated 1995) 10/20/2008, @121122 miles, and found the following:
#1) 7.35 K ohm
#2) 8.82 K ohm
#3) 12.52 K ohm
#4) 11.90 K ohm
#5) 15.26 K ohm
#6) 16.76 K ohm

FSM spec is "maximum 25 K ohm per cord"

Interestingly, you can see how, as the wires get longer, the resistance increases (duh), but I am wondering if, as you go further back towards higher heat exposure in the rear of the engine compartment, if the wires are "baked" into a higher resistance value over time??

Has anyone taken resistance readings from a new set for comparison with my numbers??

So if the resistance is greater than maximum the wires are junk?