This is a little clip that holds the wires and it's important. Wires came off just fine and went on fine so I kept them. I wanted the iridium tip though so I can get 100k out of them without having to worry about replacing them again. I've seen some cars with iridium plugs that had 200 000 miles with the original spark plugs and they still ran fine. Thanks SPONSORED LINKS. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Apr 18 2013, 2:21am. 4mpg is an insane increase from plugs and wires, hell any increase is crazy unless the plugs that were in it were trashed(168k ide called trashed,lol), you should change the plugs before they rust into the head lol i had this problem on my old 92 scottsdale broke 3 plugs off!!!!!!!!!!! Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Don't really need it down here in FL, the old plugs came out just as easy as the new ones got put in. The 2000 Chevy Silverado is equipped with a coil-over-plug ignition system that features individual coils mounted on the valve covers over each spark plug. Lightly spray the boot and threads of the new spark plug with silicone lubricant. Huge improvement when I changed them. I unhook the wire from the coil. I didn't use grease either. Sep 04 2014, 11:59pm. A top-quality spark plug can help to improve the efficiency of the engine. ive been thinking about replacing my spark plugs and wires. If your Chevy is misfiring, has lost its fuel economy, or if it is difficult to start, check the condition of the spark plugs. Over time, spark plug wires and boots may be damaged by heat or wear with age. / How long should it take to change the spark plugs and plug wires on my 2013 Chevrolet Silverado? WHEN IN DOUBT, YOU CAN NEVER USE TOO MUCH PB BLASTER! After having my truck for a few months I decided to change the spark plugs and the plug wires. What I usually like to do is I do them one at a time. If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost. Inspecting the spark plug wires for damage, such as cracking or splitting, can help determine if they should be replaced. not sure if they need to be replaced but also dont know when or how often to replace them. People often ask me why they should change spark plug wires. How long should it take to replace my plug … 3 Best Spark Plug Wires for Chevy Tahoe (as of November, 2020): 1. The spark plug wires on your Chevy Silverado carry the voltage from the distributor or coils to the individual spark plugs. If you live in an area where rust is a problem or you're just worried about getting them out in the future put some on there, otherwise I think it's pointless. I also had 1 wire break. I have a '05 2500HD. not sure if they need to be replaced but also dont know when or how often to replace them. I put them in my truck because the stock ones were still in when I got the truck 168k miles on them. Any help would be greatly appreciated. Okay, so replacing spark plug wires, this is 4-liter Ranger, a couple of different options. Spark plug wires are made with carbon based conductors, not copper wires. Changing Spark Plugs & Wires. I believe its Dielectric grease! ive been thinking about replacing my spark plugs and wires. Clamp the wire puller on the boot, or tip, of the spark plug wire, turn it 180-degrees to the left and pull out. This is a video of me changing the spark plugs and wires iin my 1999 GMC Sierra, with a 5.3L Vortec motor. 2004 Chevy Silverado spark plugs. Heard plenty crap on ngk... Ide avoid! Yes. With NGK Iridiums and new Bosch wires im seeing 4more MPG then where I was with the old plugs, I average around 17.8 and 18.5 MPG highway with my 6.0L Just my experience with them, How do you know delcos wouldnt have given an increase also? I didn't put any grease on mine. Three Day Ago I Change My Sparks Plugs, Wires And Pvc... Three Day Ago I Change My Sparks Plugs, Wires And Pvc, Now My Truck Idle Rough In The … the car felt great! Actually the first thing I do is I follow the wires down and then I find things like this. with a 5/8 inch spark plug socket and a rachet. not sure if they need to be replaced but also dont know when or how often to replace them. Which as far as I know is made my ac delco anyway lol. Ac delco! Truck runs great, my opinion is to change the wires when changing the plugs its not very expensive and its very easy since you already have the plugs disconnected. There are also non ignition related circumstances that can cause a misfire. CHEVROLET SILVERADO. cleaned the pushrods, made sure they worked. I purchased the stock plug wire set (AC Delco P/N 748HH) and spark plugs (AC Delco P/N 41-962). BRANDINO WOSER MEMBER; 2004 CHEVROLET SILVERADO; V8; 4WD; AUTOMATIC; 200,000 MILES; I was wondering how to remove the plug wires in my truck. I knew that this truck had been poorly maintained and I figured this was a good place to start. The spark plug wires on your Chevy Silverado carry the voltage from the distributor or coils to the individual spark plugs. How do you quickly and efficiently remove the spark plug wires on a 2001 Chevrolet Silverado 1500HD? If your Chevy or GMC pick-up, van, or SUV's engine IS NOT burning oil: Then more than likely you'll be able to go the 100,000 miles the spark plugs are advertised to last. Since spark plugs are a vital part of how your engine runs failing spark plugs can cause several performance problems for your Silverado. After having my truck for a few months I decided to change the spark plugs and the plug wires. 5. The wire boot is the cap that connects directly to the Silverado engine. CARiD offers different kinds of ignition wires for you to choose from. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Depending on how many miles you put on your vehicle, you may be replacing the spark plugs anywhere between 3 to 6 years. I knew that this truck had been poorly maintained and I figured this was a good place to start. what ... SilveradoSierra.com - Chevy Truck Forum | Silverado Sierra GMC Truck Forums The only site focused on Silverado/Sierra trucks exclusively. I figure with 111K its about time to swap them out, for $70 buck total it cant hurt. P0307, witch is Cylinder 7 misfiring. Ok so my "service engine soon" light is on and I had someone come over and use the computer to see what code it was after looking into it one of my spark plugs isn't working correctly. Even turned off the AFM to see if that would help. Since there are so many reasons that a vehicle can misfire, we recommend testing for trouble codes first. The ignition wire set is a normal maintenance item, and the replacement schedule is listed in the owner's manual. I am not familiar with the metal casing around the plugs. Inspecting the spark plug wires for damage, such as cracking or splitting, can help determine if they should be replaced. valley cover has been cleaned as well 2 Answers. Rough Idling. Those plugs look good enough I would have run em, clean off the crap from the conductors and put another 50k+ miles on them. Turn the wrench to the left to unscrew and remove the old spark plug. 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