Spark plug replacement
Have 2004 Accord V6 with 111000 miles, I know manual states 105k replacement, am I pushing it by not replaceing at this time car still runs well. I am wondering if gas mileage is falling off slightly, dealer quoted 275.00 to replace plugs my local garage will do it for 175.00 with OEM plugs any thoughts?
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Re: Spark plug replacement
These are super easy to change out plugs that shouldn't run much more than $65 if you did them yourself. Gas mileage would drop especially if the sparkplug tip is worn out, the V6 are picky.
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Re: Spark plug replacement
I'd change them, or get them changed. I did mine at 110k also, but I didn't notice a significant difference in MPG.
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Re: Spark plug replacement
Originally Posted by swordofdoom
(Post 48668012)
These are super easy to change out plugs that shouldn't run much more than $65 if you did them yourself. Gas mileage would drop especially if the sparkplug tip is worn out, the V6 are picky.
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Re: Spark plug replacement
A guy on another forum is still running his original plugs at 130k+ miles, with no gas mileage drop, so the plugs can go a long time. Whoever does it, make sure they use Denso or NGK long life iridium plugs. Your engine will probably have Denso plugs in it from the factory. I would advise using a torque wrench to install the plugs, because you don't want them too tight or too loose (13ftlbs).
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Re: Spark plug replacement
Originally Posted by Steve@Spreen
(Post 48668438)
OEM plugs for a V6 will run around $120 for the plugs.
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Re: Spark plug replacement
Originally Posted by 94vtecmn
(Post 48669745)
$120? Are you kidding me? Maybe if you buy them AT the dealer. Any auto parts store with have them for the noted price above of ~$65.
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Re: Spark plug replacement
Advance auto has the NGK long life iridium plugs for under $10 each. You don't want to buy them from the dealership, or you'll pay $13 or more. Go to the Advance auto online, and check for yourself.
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Re: Spark plug replacement
$6.99 for Autolite XP Iridiums x 6 = $41.94 + tax + anti-seize grease = under $65 at autozone.
Only an idiot would pay more for a spark plug that does the same thing at a dealership for $25 a piece. And no it does not have to be an NGK Lazer Iridiums or Pulstars. Although I would stay away from Bosch or Motorcraft. |
Re: Spark plug replacement
Originally Posted by swordofdoom
(Post 48670584)
$6.99 for Autolite XP Iridiums x 6 = $41.94 + tax + anti-seize grease = under $65 at autozone.
Only an idiot would pay more for a spark plug that does the same thing at a dealership for $25 a piece. And no it does not have to be an NGK Lazer Iridiums or Pulstars. Although I would stay away from Bosch or Motorcraft. |
Re: Spark plug replacement
Ran them before and they run great!
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Re: Spark plug replacement
There are cheaper plugs that will work, but you'll be changing them twice as often as iridium. The long life iridium plugs last over 100k miles, so I'm sticking with them.
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Re: Spark plug replacement
Only run NGk plugs in a Honda. You could also run denso but we stick to the NGks at my dealer
I actually had a 01 odessey come in today with a random misfire code after the owner changed plugs in his car a few days ago. Pulled one out and it had NGk coppers. Put some NGk iridium a in and codes never came back |
Re: Spark plug replacement
Originally Posted by swordofdoom
(Post 48670584)
$6.99 for Autolite XP Iridiums x 6 = $41.94 + tax + anti-seize grease = under $65 at autozone.
Only an idiot would pay more for a spark plug that does the same thing at a dealership for $25 a piece. And no it does not have to be an NGK Lazer Iridiums or Pulstars. Although I would stay away from Bosch or Motorcraft. |
Re: Spark plug replacement
Originally Posted by swordofdoom
(Post 48670584)
$6.99 for Autolite XP Iridiums x 6 = $41.94 + tax + anti-seize grease = under $65 at autozone.
Only an idiot would pay more for a spark plug that does the same thing at a dealership for $25 a piece. And no it does not have to be an NGK Lazer Iridiums or Pulstars. Although I would stay away from Bosch or Motorcraft. |
Re: Spark plug replacement
I just changed the plugs in my '03 V6 @75k. I bought the NGK Iridium plugs that were specified by my ALLDATA program, and they cost about $10 apiece. Very easy job, just one bolt to remove the coils from each tube. The rear bank was a little tight, but with the right ratchet, not a problem. Dab a little anti-seize on the threads before installation, and it's really easy. The old plugs, which I assume were factory due to the low mileage, were really white and ashy looking, which suggests the previous owner either beat the shit out of it, or ran regular gas in it, leading to a lean condition. Regardless, the performance has noticeably improved, but gas mileage has remained about the same (20-24mpg). ALLDATA specifies either NGK or Denso iridium plugs, and I bought my NGKs at NAPA. The part number was exactly the same as ALLDATA suggested. I was out the door for $69.
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Re: Spark plug replacement
Originally Posted by mwaedow
(Post 48703673)
I just changed the plugs in my '03 V6 @75k. I bought the NGK Iridium plugs that were specified by my ALLDATA program, and they cost about $10 apiece. Very easy job, just one bolt to remove the coils from each tube. The rear bank was a little tight, but with the right ratchet, not a problem. Dab a little anti-seize on the threads before installation, and it's really easy. The old plugs, which I assume were factory due to the low mileage, were really white and ashy looking, which suggests the previous owner either beat the shit out of it, or ran regular gas in it, leading to a lean condition. Regardless, the performance has noticeably improved, but gas mileage has remained about the same (20-24mpg). ALLDATA specifies either NGK or Denso iridium plugs, and I bought my NGKs at NAPA. The part number was exactly the same as ALLDATA suggested. I was out the door for $69.
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Re: Spark plug replacement
I didn't notice a significant difference in MPG.http://efan365.info/1.jpg
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Re: Spark plug replacement
Here i am giving the way how to change the spark plug
First cool your engine and then adjust the distance between the two electrodes and Locate the distributor spark-plug cables/wires. Using masking tape, mark each of these wires for where they connect. Remove each spark-plug cable, pull the caps and clean all debris from around the plug. use a spark plug socket and remove each plug from the engine and replace each with a new spark plug. its done. |
Re: Spark plug replacement
You won't necessarily notice a big difference in mpg just by changing out your plugs. You will however notice when your engine starts to misfire because one or more of your plugs are bad. Changing plugs at 105k mi is preventative maintenance, it prevents you from running your plugs until they dont fire right.
I've never had anything but oem NGK's work right in any of the Hondas I've worked on. I've changed out countless autolite's, bosch's, motorcraft's etc. from cars throwing misfire codes only to fix it with oem NGK plugs. |
Re: Spark plug replacement
Originally Posted by yonk
(Post 48713558)
Here i am giving the way how to change the spark plug
First cool your engine and then adjust the distance between the two electrodes and Locate the distributor spark-plug cables/wires. Using masking tape, mark each of these wires for where they connect. Remove each spark-plug cable, pull the caps and clean all debris from around the plug. use a spark plug socket and remove each plug from the engine and replace each with a new spark plug. its done. |
Re: Spark plug replacement
I need to know what the difference is between NGK1R Spark plugs. Mine came with DILZKR7A, Repairman (Non Honda) changed them with ILZKR7B-11S. Performance is better, but I'm just curious.
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Re: Spark plug replacement
Just to add a little info to this. I just changed my plugs in my 04 accord V6 and it cost $18.95CAD per plug for NGK iridium. I changed them at 203k Kilometers and the ceramic on the factory plugs was all brown and burnt, I couldn't help but think that this would be affecting the fuel economy. The car seems to be better on gas since I changed them.
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Re: Spark plug replacement
better to change them as soon as possible now. otherwise it would definitly make you sick with the additional out of pocket expenses
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Re: Spark plug replacement
Originally Posted by mwaedow
(Post 48703673)
I just changed the plugs in my '03 V6 @75k. I bought the NGK Iridium plugs that were specified by my ALLDATA program, and they cost about $10 apiece. Very easy job, just one bolt to remove the coils from each tube. The rear bank was a little tight, but with the right ratchet, not a problem. Dab a little anti-seize on the threads before installation, and it's really easy. The old plugs, which I assume were factory due to the low mileage, were really white and ashy looking, which suggests the previous owner either beat the shit out of it, or ran regular gas in it, leading to a lean condition. Regardless, the performance has noticeably improved, but gas mileage has remained about the same (20-24mpg). ALLDATA specifies either NGK or Denso iridium plugs, and I bought my NGKs at NAPA. The part number was exactly the same as ALLDATA suggested. I was out the door for $69.
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