★★★★★
April 1, 2026
Ignition coils
Ignition coils fixed my misfire problems
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Part Details
Specifications
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Product Features
TRQ ignition coils will have your engine running like new. TRQ ignition coils are manufactured to precise specifications using premium raw materials to optimize each vehicle's ignition system. To ensure peak performance, TRQ recommends replacing ignition coils in sets to prevent electrical output imbalances. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.
Returns: Parts with electrical components cannot be returned once installed.
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii and Alaska.
Shipping is not available to a P.O. Box, APO/FPO/DPO addresses, US Territories, or Canada for this item.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii.
Final shipping costs are available at checkout.
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Tools used
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
In this video, we're going to show you how to replace an ignition coil on this 2003 Buick LeSabre. These coils are the same for many different GM vehicles, so this will cross over to different cars, although some vehicles locate the coils in different places. The only tool you'll need is a 7/32 inch socket with a ratchet and extension.
The ignition coils for this vehicle are nicely located right here on the front the engine. There's actually nothing wrong with them. I'm just going to show you how to take them in and out. Each coil does 2 cylinders. Just give the wires a twist. I'll put that one right up there; this one down here so I know which one goes where. Do these one at a time. These bolts are 7/32 inch and you just remove 2 bolts. The coil lifts right up and off. There are two contacts right here that go into the coil and then put your new one on. Carefully place it on those contacts. Make sure you don't bend them. Put your 7/32 inch bolts back in. Then plug back in your wires. The wires have to go back on the same ones, so it's important you do them one at a time and unplug the wires two at a time.
We hope this helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
Tools used
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet. Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use by 20 plus years experiences restoring and repairing cars and trucks like this to show the correct way to install parts from 1AAuto.com. The right parts installed correctly, that's going to save you time and money. Thank you and enjoy the video.
In this video we're going to show you ignition coil replacement. This is an '03 Monte Carlo SS with a 3800 or 3.8 liter. The same engine that's in a ton of different vehicles from the late 90's to the late 2009, 2010 era. The same procedure for all vehicles. The only tool you're going to need is a socket and ratchet with an extension, either 6 mm or a 7/32.
Coil replacement, this is a 2003 Monte Carlo SS. It has got a 3800 V6, pretty typical of a lot of GM cars, great little engine, good power, lasts a long time. The coils for the most part are right on the side of the engine, right here. You can see that there are three of them. Each coil handles two cylinders, so they're really nice and easy to get to on these V6's. This is pretty much the same as the 3.4 liter V6 as well. I'll show you how to replace these. Okay, replacement is really quite easy. You start by removing the plug wires and I do one coil at a time. You don't want to just unplug all these wires. You want to make sure you have to plug them back into the same spot.
I just unplug. I take that one and leave it right up there. I'll take this one that's lower and I'll put it down here. Now I have two bolts here that I have to remove. Okay, those two bolts are 6 mm and actually 7/32 and a standard socket works as well. Okay, then the coil comes right off. You can see that it plugs into two tabs right there. You want to be careful when you raise not to bend those tabs at all. Okay, this is our original coil. This is our coil from 1A Auto. You can see that they're the exact same. Obviously our coil doesn't have the numbers on it; because, it can be used on any of the three positions. Everything's the same. Everything is going to bolt in the same. It has the same plugs there. I am going to re-install the original coil; because, there's nothing wrong with it on this car. I just wanted to show you that.
A good practice when you're re-installing the coil is to put these bolts in, okay. That way when you put it down on you can see that the bolts go into the right place and that you have the coil lined up, okay, so then just kind of lightly work it down on there. Then push those bolts on. I'm going to tighten up with my air ratchet. Now I'm going to finish tightening it up by hand. Never want to use the ratchet to tighten something up; because, you want to know how tight it actually is. Okay, I know I left this top one up here. I'll put that one on and then this bottom one down here. I'm going to put that one on. Just repeat that for the other two.
We hope this helps you out. Brought to you by www.1AAuto.com. Your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll free 888-844-3393. We're the company that's with you on the Internet and in person.
ICA61515
Ignition coils fixed my misfire problems
The parts arrived on time, and was well packaged. The price for four coil packs locally was more than double what I paid at A1 Auto and with free shipping, it was a no brained. The coil packs were identical in design to the original and fit perfectly. My car never ran better and its mileage is 215K!! Thanks.
They, 4, are, did work beautiful wonders in the..performance of the 4.6...I just need to replace the plugs n wires....thank you much!
Received the 4 pack each coil pack set. Delivery was very quick. Very easy installation with 2 bolts each. Need either 11mm or 10mm socket; I forgot which one I used. I would recommend this product for any do it yourself person. Andrew Jenkins Augusta, Ga
WAS GOING TO GET A USED 1 AT THE LOCAL PICK-PULL FOR AROUND 40.00 .THEN FOUND ALL 4 OF THESE WITH A 2 DAY SHIP FOR A FEW BUCKS MORE.INSTALLED THEM AND ALL THE MISSES ARE GONE NOW.WORKS GREAT.
I have a 99 Deville I put these on, and it was running horrible prior to this tune-up. I was getting ~15MPG, couldn't climb hills, and sometimes the car would just die. I put these on, my MPG is over 18 now, and it's got plenty of power. My only beef with these is that they don't have the firing order printed on them like the OEM coils, but for the price, I'll live with it. I've had them on about 2 weeks now and I'm very happy with them. In addition, 1A-Auto always gets me my parts fast and with free shipping.
Fast shipping, and perfect fit for my car at a fraction of the cost !
This was the perfect part and just what I was looking for. Easy to install and my car is running great and I am very satisfied. Thank you
fixed my 98 caddy sts immediate results took 1 hour to replace the four coils, mainly because i had to reach so far over the engine to get to the bolts. p0300 code went away, rough idle went away. lots of power back in my engine.. no idea how long these are gauranteed for but way better deal than $225 for 4
I received the product very quit. And install them the same day. It made my car sound completely different. Like it had new life again. Thank you for a very good product. And very affordable. I would highly recommend them to anyone. It will save you money, and get your vehicle running very good again.****
