Thread: 160,000 klm original ac delco iridium spark plugs

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  1. #1 160,000 klm original ac delco iridium spark plugs 
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    While my mechanic was replacing the original spark plugs, 2 broke in the front and one broke in the back. They spark plug came out but the thread part stayed in the engine. Took him 3 hours to do the job.
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  2. #2 Re: 160,000 klm original ac delco iridium spark plugs 
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    Just a little added info: it's a 2006 GP GT with 140, 000 klm's, original plugs and wires.
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  3. #3 Re: 160,000 klm original ac delco iridium spark plugs 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    It happens.

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  4. #4 Re: 160,000 klm original ac delco iridium spark plugs 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Your title says 160k KM but your post says 140k KM. Which is it?

    Looks like between 86,991 and 99,419 miles. That's about spot on for replacement. The owners manual says to replace them every 100,000 miles.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  5. #5 Re: 160,000 klm original ac delco iridium spark plugs 
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    My car has 140,000km. The original ac iridium plugs are rated at 160,000 km. I'm just saying they aren't.
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  6. #6 Re: 160,000 klm original ac delco iridium spark plugs 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    They still could be but you live in canada, which is your biggest issue. Corrosion and rust will make them stick or cause them to break apart. And the fact that you had waited over 10 years to finally remove them didn't help.

    I myself would only run them for 75,000 miles and change them and I also wash my engine bay often enough to keep the motor clean.

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  7. #7 Re: 160,000 klm original ac delco iridium spark plugs 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    The "average driver" puts 12,000-15,000 miles on their car per year. That puts the recommended changing of spark plugs around 6.5 years maximum.

    In that time, the plugs should still be removed and read, which it sounds like wasn't done with your car.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  8. #8 Re: 160,000 klm original ac delco iridium spark plugs 
    Donating Users Bronco Boy's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    .....you live in canada, which is your biggest issue.
    Hey! Watch your mouth. LOL
    Chris B
    2009 CX-9
    ** SOLD ** 2002 GT
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  9. #9 Re: 160,000 klm original ac delco iridium spark plugs 
    GT Level Member WolvesSoulZ's Avatar
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    Quote Originally Posted by Premiergp View Post
    My car has 140,000km. The original ac iridium plugs are rated at 160,000 km. I'm just saying they aren't.
    Your car is not representative of the plugs life.
    Some cars just aren't taken care of.

    Replaced stockers at 100k, 150k, 180, 200k, 250k and never once, broke one.
    2000 GT - L67 swapped SOLD | 2004 GT1 - Winter Beater - SOLD
    2004 GTP Comp-G - 3.3"/3.2", XP, #50 , 4" MAF, SD's, 180*, AL103's, HAI, Tuned, 06+ Dual pistons brakes, STB's, SSC's and FE3.
    2011 Audi A6 S-Line - Also Supercharged
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