spark plugs

2007 CHEVROLET IMPALA
67,000 MILES • 6 CYL • FWD • AUTOMATIC
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TJONES1980
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How often should I change my spark plugs? And is it o.k. to use performance spark plugs? I need to change the spark plugs?
Mar 25, 2010 at 4:18 PM
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RHALL77
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your plugs in that car should be good for 60,000 miles. as for performance plugs, i would suggest using what the factory calls for. Here is a guide to help walk you through the job with diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-change-spark-plugs

1.02 mm (0.040 in) gap

Spark Plug Type .................... GM P/N 12591131 (AC Delco #41-100)

https://www.amazon.com/gp/product/B000IZ3MPC/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B000IZ3MPC&linkId=7cfb46aea11c8ba2f5a7d391aa5e698d

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Mar 26, 2010 at 8:56 AM
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TOM_G
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Not much clearance to get at the rear spark plugs
Dec 5, 2019 at 12:24 PM (Merged)
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SATURNTECH9
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Remove the two top motor mounts (Dog bones )then get a ratcheting tie down to tilt the engine forward.Then remover the plugs and out them back in, still tight but at least theres some room
Dec 5, 2019 at 12:24 PM (Merged)
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2CP-ARCHIVES
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I just changed the spark plug and wires and now my car is making a tickin noise and had the smell of rotten eggs
Dec 5, 2019 at 12:24 PM (Merged)
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MHPAUTOS
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Check leads are fitted correctly and pushed all the way home, have you just got any fuel? at night go out and start engine and lift bonnet, watch for any ignition spark arcing to earth.
Dec 5, 2019 at 12:24 PM (Merged)
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EVELYN LORENCES
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I have a chevy Impala 2004 and it takes a very long time to start and it sound like it's clogged and then when I finally get it to turn on it makes really weird noises and when I come to a complete stop or when I'm slowing down the car completely shuts off ... we changed the coil wires and we changed the spark plugs and the box that the coil wires plugged into but I guess that was not it because it's still makes the same noise and it takes forever to start and when it does it shut off . Can u please help
Dec 5, 2019 at 12:24 PM (Merged)
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STEVE W.
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The description sounds like it could be almost anything. From a plugged exhaust system, bad fuel pump, bad fuel regulator, EGR stuck open, purge solenoid stuck open and more. It needs to go to a shop and have it actually scanned and some diagnostic tests performed. The other option is to spend a bunch of money swapping parts until you get lucky or go broke.

You didn't post which engine you have so that also hinders the process.
Dec 5, 2019 at 12:24 PM (Merged)
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MAXIMTHEHERO
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Engine Mechanical problem
2004 Chevy Impala 6 cyl Front Wheel Drive Automatic

I can't find what the spark plug gap for my car is and I need to replace the plugs. can you help?
Dec 5, 2019 at 12:24 PM (Merged)
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RHALL77
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0.060 Here is a guide to help you see what you are in for when doing the job.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please let us know if you need anything else to get the problem fixed.

Cheers
Dec 5, 2019 at 12:24 PM (Merged)
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SHORTYMD
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3400 motor. I was having a misfire on cylinder 4 so I went to change the plugs and wires. Plug 4 was covered in oil and gas when pulled. I replaced the plugs and the car was still misfiring. I pulled plug 4 again within 10 minutes and it was covered in oil again. It appears to be getting spark to it. What could it be?
Dec 5, 2019 at 12:24 PM (Merged)
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BLACKOP555
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chances are your valve seals for that cylinder is cracked, if that isnt it then you will probably need new piston rings.
Dec 5, 2019 at 12:24 PM (Merged)
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SADAT_04
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I recently changed the spark plugs and the wires. After the change, car starts but the rpm falls and the engine idles. No matter how many times I try, it always starts just fine but it does not stay up. I thought the spark plugs were bad since I got genuine subaru wires but NGK laser iridium plugs. I switched the plugs with Bosch platinum and still doing the same thing. One thing I did notice that when I was taking the plugs out, couple of the spark plugs had quite a bit of engine oil in it. I cleaned the plug holes a bit. Could anyone please help. Ask me any question. Thanks.
Dec 5, 2019 at 12:24 PM (Merged)
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2CARPRO JACK
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are you sure the wires are on the correct posts on the cap. You might have retarded the firing order
Dec 5, 2019 at 12:24 PM (Merged)
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WRX246
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IT possibly is the air flow meter & the o2 sensor & the idle control valve it ,may pay to get these checked.
Thanks :)
Dec 5, 2019 at 12:24 PM (Merged)
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KENNETH P. MAAG
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how do you change the back spark plugs
Dec 5, 2019 at 12:25 PM (Merged)
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JDUBUYA
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you have to feel for the plugs and use an extension and possibly an adapter so that you can get the right angle
Dec 5, 2019 at 12:25 PM (Merged)
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MAV32259
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How to change spark plugs on 2004 impala
Jan 2, 2020 at 8:56 PM (Merged)
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DAVE H
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the plugs are at positions 5,3,1 and 2,4,6 at the bottom of each side picture, pull number 1 wire off the top of the number 1 plug using a spark plug socket, unscrew plug from head .. screw new plug back in hole ... taking real care not to cross thread .. re-clip wire back onto plug .. repeat this for every plug .. do not mix up wires .. or your firing order will be wrong ..


https://www.2carpros.com/forum/automotive_pictures/266999_Graphic12_1.jpg

Jan 2, 2020 at 8:56 PM (Merged)
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SANDMAN92097
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How do you change the spark plugs on a 2002 Chevy Impala?
Jan 2, 2020 at 8:56 PM (Merged)
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DENNYP
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Remove the plug wires from the plugs, then remove the spark plugs from the engine with a 5/8 inch spark plug socket. (engine needs to be cold) If installing the spark plugs to an existing cylinder head tighten the spark plugs to 15N·m (11 lb ft). Notice: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug


https://www.2carpros.com/forum/automotive_pictures/102900_spark_1.jpg

Note: Use only AC Delco spark plugs. Do NOT use Bosch plugs!
Jan 2, 2020 at 8:56 PM (Merged)
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STAN418
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I want to change my spark plug but those plugs in the back of the engine i can't ever see them how can i change them if i can't see do i just get on top of the engine and feel for the plug and try to get a wrench on it that way can u help me.

stanley.
Jan 2, 2020 at 8:56 PM (Merged)
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TOOOMANYTOYS
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Yes bank 2 plugs are buried. Depending on what engine size you have there are sometimes two upper motor mounts on the front that bolt to the radiator core support. If this vehicle has those still mounts you can remove them then using a ratchet strap pull the engine forward alittle. This makes it slightly easier, but still not fun.
Jan 2, 2020 at 8:56 PM (Merged)
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RCAREY4128
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I just did mine over the weekend. The back is a pain in the a$$.
I found it easier to access the middle and drivers side one's if you remove the cross bar at the very back. For the passenger side slide the alternator out of the way and you can reach that one relatively easy. Removeing the old cables from the old plugs was the hardest part of the whole process for me.
Jan 2, 2020 at 8:56 PM (Merged)
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PMASSINGILL47
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I am trying to find out how to install the 3 Rear Spark Plugs in my 2000 Chevy Impala 3.8 what do I do?
Jan 2, 2020 at 8:56 PM (Merged)
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TY ANDERSON
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Yes, the back three spark plugs are difficult to get to. The way I get to them it to disconnect both of the top most engine mounts (two mounts) attached to core support just above the radiator. Then with a come along straps rock or pull the engine towards the radiator with the straps. There is a metal loop bracket under the plastic engine cover that you can strap to. Then, you'll have more access to the rear spark plugs.

There is a video describing the procedure noted above.
I realize the engine is different but the process is similar.
http://www.youtube.com/watch?v=JoNyH1xxMFE
Jan 2, 2020 at 8:56 PM (Merged)