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When to replace spark plugs and wires

 
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Old 06 Jan 2010, 12:02 am
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Default When to replace spark plugs and wires

Hello, I just got an 06 PT cruiser with 40K miles on it. I don't have the service records of the vehicle. So far the engine runs fine (or so I think) but I have heard of great improvement in other peoples PT's after replacing these components. How can I tell when to replace my plugs and wires?
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Old 06 Jan 2010, 03:01 am
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Default Re: When to replace spark plugs and wires

Quote:
Originally Posted by PTBoozer View Post
Hello, I just got an 06 PT cruiser with 40K miles on it. I don't have the service records of the vehicle. So far the engine runs fine (or so I think) but I have heard of great improvement in other peoples PT's after replacing these components. How can I tell when to replace my plugs and wires?
No great improvement, car just runs great. The book calls for a plug change every 30k. The stock wires are junk so go with any good aftermarket wires and I use Bosch double platinum plugs.
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Old 06 Jan 2010, 06:40 am
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Default Re: When to replace spark plugs and wires

If it "coughs" at ilde, if there's a "skip" when accelerating, you need wires and plugs.
At 40,000, my bet would be they weren't done.
As to improvement, all new wires and plugs can do is replace any performance that was lost - at best you'll get back to "good as new".
Gap plugs at 0.040.
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Old 06 Jan 2010, 01:04 pm
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Default Re: When to replace spark plugs and wires

A good time to replace plugs and wires is the day you bring it home ok so that is a stretch but the stock ones are crap get a good set of wires gap the plugs at 40 and life will be good
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Old 06 Jan 2010, 08:09 pm
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Default Re: When to replace spark plugs and wires

thanks for all the replies.

any suggestion for good set of plugs and wires?
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Old 06 Jan 2010, 10:59 pm
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Default Re: When to replace spark plugs and wires

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Originally Posted by PTBoozer View Post
thanks for all the replies.

any suggestion for good set of plugs and wires?
My preferences: MSD wires, Autolite iridium plugs. Amazon.com has them. Other list members have other opinions with equally good results.
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Old 07 Jan 2010, 12:27 am
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Default Re: When to replace spark plugs and wires

For the non turbo I already said I'm using Bosch Double Platinum plugs. IMHO irridium plugs are overpriced and don't do anything the stock plugs do. The irridium will last a bit longer, but the high price you pay for them still doesn't make them cost effective. The double platinums last longer than the stock plugs and cost way less than the irridium plugs. For those of you with the turbo DO NOT USE platinum plugs cause the metal prongs holding the tip will melt in a turbo car.
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