At least you know the engine is running good if they are originals! Lightly spray the boot and threads of the new spark plug with silicone lubricant. Your plugs look like mine, i replaced my plugs at about 160k. This is a video of me changing the spark plugs and wires iin my 1999 GMC Sierra, with a 5.3L Vortec motor. I also had 1 wire break. Attach the socket to the spark plug. After having my truck for a few months I decided to change the spark plugs and the plug wires. cleaned the pushrods, made sure they worked. replacing spark plugs and wires. After having my truck for a few months I decided to change the spark plugs and the plug wires. / How long should it take to change the spark plugs and plug wires on my 2013 Chevrolet Silverado? Inspecting the spark plug wires for damage, such as cracking or splitting, can help determine if they should be replaced. The spark plug wires on your Chevy Silverado carry the voltage from the distributor or coils to the individual spark plugs. I figure with 111K its about time to swap them out, for $70 buck total it cant hurt. The Saihisday 9748HH spark plug wires are designed with superior materials and components to ensure that your car engine does not misfire or have starting difficulties even during harsh weather conditions.. The only problem I had was the very back plug on the passenger side. I have a '05 2500HD. Jun 08 2012, 6:44pm. I didn't use grease either. I purchased the stock plug wire set (AC Delco P/N 748HH) and spark plugs (AC Delco P/N 41-962). I am having a time trying to get these off. I want to change the plugs and wires on my 2002 Chevy Silverado. I unhook the wire from the coil. If you're not getting spark to one or more cylinders, this could point to a problem with a spark plug wire. I am new to the site but not new to the LS motor which is in these trucks. It took a bit, but I managed to remove it and install the new one. Truck runs better now, especially at idle. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. that was not fun lol, 2008 Silverado 2500HD,6.6 Duramax,Crewcab,LTZ,4x4,Projector Head Lights, LED Taillights, PPE Diff Cover& trans pan, gooseneck Hitch, XD Wheels, Tinted Windows, EFILive, EGR Block, 5" MBRP turbo back exhaust. This system allows the on-board computer to adjust the timing to optimize each individual cylinder. How do you change spark plugs on a 2004 Chevy Silverado Z71? Thanks SPONSORED LINKS. If you remove more than one wire at a time, they need to be marked. 3 Best Spark Plug Wires for Chevy Tahoe (as of November, 2020): 1. Ac delco! Question type: Maintenance & Repair. If a wire is connected to the wrong spark plug, the engine will misfire. It alomost has 100,000 on it. Ive changed all the lifters,coils,injectors and solnoids. I knew that this truck had been poorly maintained and I figured this was a good place to start. I believe it was nickel based. Plugs and wires as well. not sure if they need to be replaced but also dont know when or how often to replace them. Definitely tore my knuckles up! 2004 Chevy Silverado spark plugs. But I change spark plugs \\*\\*every 100 000 miles regardless\\*\\* and recommend you to do the same . Even turned off the AFM to see if that would help. not sure if they need to be replaced but also dont know when or how often to replace them. If the ignition wires, or "spark plug" wires, wear out before the specified mileage, they must be replaced early. Changing Spark Plugs & Wires. Over time, spark plug wires and boots may be damaged by heat or wear with age. I knew that this truck had been poorly maintained and I figured this was a good place to start. 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. Your spark plug wires carry power from your distributor to your spark plugs. what ... SilveradoSierra.com - Chevy Truck Forum | Silverado Sierra GMC Truck Forums The only site focused on Silverado/Sierra trucks exclusively. When to change spark plug wires When to change spark plug wires and how to test them. Wires were #9748QQ and plugs were #41-110 less then $100 from amazon. If your Chevy is misfiring, has lost its fuel economy, or if it is difficult to start, check the condition of the spark plugs. Turn the wrench to the left to unscrew and remove the old spark plug. with a 5/8 inch spark plug socket and a rachet. the car felt great! For the specific type of engine, you need to get a compatible spark plug and wire set; otherwise, you may not get the best-desired output from it. what are the benefits of replacing the spark plugs and wires and how often should they be replaced? 2002. No. Since there are so many reasons that a vehicle can misfire, we recommend testing for trouble codes first. 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 … Over time, due to the extreme heat from the motor and the high voltage that they carry, spark plug wires can break down. Remove one wire from a spark plug. 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!!!!!!!!!!! They probably are stock because mine were as well and looked just like yours. And the wires get the bosch wires and make sure to get the boot grease for the wires, makes them easier to put on and take off. This is a little clip that holds the wires and it's important. Chevrolet Silverado 2500 HD Spark Plug Replacement costs $347 on average. How long should it take to replace my plug … The ignition wire set is a normal maintenance item, and the replacement schedule is listed in the owner's manual. Drivers side was easy. I am not familiar with the metal casing around the plugs. 100k miles i believe the book will say... Make sure to not get sold any "performance" plugs. not sure if they need to be replaced but also dont know when or how often to replace them. Those plugs look good enough I would have run em, clean off the crap from the conductors and put another 50k+ miles on them. ive been thinking about replacing my spark plugs and wires. How often do spark plug wires need to be replaced? Yes. 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 replaced mine back in July when I was at 194k. 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? They didn't have iridium tip ac delco plugs in stock so I think I got bosch. My plugs were really bad and had to be original. I had a 2004 GTO LS1 for 3 years and the first thing I did to it was change the plugs and wires- plugs were NGK TR-55 and the wires were Taylor 8mm. The spark plug wires on your Chevy Silverado carry the voltage from the distributor or coils to the individual spark plugs. On top of that your plugs look nowhere near as bad as I've seen like dg1379. It’s a simple answer; they carry the firing voltage to the spark plugs and if they’re not performing up-to-par, neither are your spark plugs. Wires came off just fine and went on fine so I kept them. Chevy Silverado: Bad Spark Plugs ... There’s also spark plugs and plug wires. : 2018 Silverado Z71, LT2 All star edition, 4x4, 3.5” RCX lift, 20x10-24 Pure Grit PG101 wheels and Fury offroad country hunter MT 33x12.50R20: ive been thinking about replacing my spark plugs and wires. I've seen some cars with iridium plugs that had 200 000 miles with the original spark plugs and they still ran fine. back thanks think truck using still same front lift great wire plug replacement spark help work, Users browsing this forum: No registered users and 21 guests, After having my truck for a few months I decided to change the spark plugs and the plug wires. Inspecting the spark plug wires for damage, such as cracking or splitting, can help determine if they should be replaced. Heard plenty crap on ngk... Ide avoid! 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. 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