Im afraid to do mine!!! but they need to be replaced!

 

I'm looking for a little advice, I trust most of the folks here more than anywhere I would bring my truck to for service.

I have to confess, I didn't read the whole sticky about it, it's kind of long LOL.

I know the sticky states that he wouldn't rush to change the plugs ahead of time, but My truck is a little unique. It's a 2004 with only 30,000 miles. It may be a while before it sees 100,000.

Would the experts here, still recommend waiting, or should I think about being preemptive and getting the plugs done when I have the $$$ and time?

 

I would recommend to change them now, i changed mine at 30k,50k and 75k. And i never broke a plug a single time. My truck now has 95k so its time to do it again.
So do it now, while the carbon build up is minimal and use a 1 piece plug.

 

Thanks, I think that's good advice

 

I replaced mine a 60k and broke 6 out of 8.. i was nervous as hell too, already have the lisle tool. Took a second to figure it out and trust it but after that it only took time.

 

WOW! Had it towed over there this morning. They called me this afternoon. $305 for the whole works which included a trans service. 7 out of 8 broken off.

I love my local shop but I still don't like this setup. Glad I won't have to do again for a long time.

 

3/8 impact to get them out. We usually don't break too many (on maintained vehicles) we rec. every 50k. Also have the lisle too. Works great. Once you do enough they aren't too bad. My 01 2v shot a plug out of the head at 40k. Luckily had warranty but I'll take a little more work getting them out of my 06 than having a 2v shoot it out for me haha

 

Despite the recommended service procedures from Autolite etc., it looks like a 3/8 impact might be a key tool to use to increase the job's success. Slowly turning them out with a beam style torque wrench seems doomed to fail IMO.

To the OP, I wouldn't wish a Duramax on anyone, especially one off of warranty.

 

Impact method is the only way to go.

 

How does the impact gun ease changing the plugs? It seems like it stands a better chance breaking them?