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.
Product Features
High dielectric epoxy and reinforced bobbins for extended service life
Rubber, Silicone, or Phenolic Resin Shell: Prevents premature boot wear
Application Specific Design: No modifications required
Complete repair to restore your engine to like-new condition
Item Condition:New
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.
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Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
How To Replace Ignition Coils 2003-07 Cadillac CTS
Created on:
Tools used
13mm Socket
Flat Blade Screwdriver
Torque Wrench
18mm Socket
10mm Wrench
5/8 Inch Spark Plug Socket
Ratchet
1. Loosening the Intake Manifold
Remove the oil fill cap
Remove the engine cover
Remove the 13mm bolts from the top of the intake manifold
Loosen the air intake hose clamp
Pull the air intake box off
Loosen the stud with a 10mm wrench
Loosen the 18mm bolt to pull back the bracket from the hose
2. Removing the Ignition Coil
Loosen the 10mm bolt on the ignition coil
Pry off the ignition coil sensor harness
Lift the intake manifold
Remove the ignition coil
3. Reinstalling the Ignition Coil
Insert the ignition coil into place
Connect the ignition coil sensor harness
Tighten the 10mm bolt to the ignition coil
4. Tightening the Intake Manifold
Preliminarily tighten the 13mm bolts to the top of the intake manifold
Torque the 13mm bolts to 20 foot-pounds
Tighten the stud with a 10mm wrench
Tighten the 18mm bolt
Press the intake box to the intake manifold
Tighten the hose clamp
Insert the engine cover in place
Tighten the oil cap
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace an ignition coil in this 2006 Cadillac CTS. It has the 2.8-liter V-6 engine, and we show you how to replace one of the harder ones, which requires you to pull up the intake plenum. You'll need new ignition coils from 1AAuto.com, various wrenches and sockets, flat blade screwdriver, and a torque wrench to put things back together.
Twist out your oil fill cap, and then pull off your engine cover. Now there's a series of 13mm bolts going all the way back, and you want to just go ahead and remove those. The ones in the back are a little hard to remove, but you want to at least loosen them up as much as you can. For the back ones, we use a small breaker bar and a shallow socket. Using a flat blade screwdriver, loosen up this hose clamp and then pull the air intake box from the front of the intake manifold. Using a 10mm wrench, just loosen up this stud and then twist it free. Then loosen this 18mm bolt. You want to loosen it enough until you can pull that bracket back.
Okay, with all five of these bolts out and that one loosened up, this bracket detached and this detached. You should be able to lift up your manifold enough to access all the coils. Loosen up the 10mm bolt on your ignition coil, and you want to get it out as much as you can and pry out on the tab on this harness and then slide the harness free. Lift up on your intake manifold and pry the ignition coil up, and now you can loosen that bolt more and pull the ignition coil free.
Now, to replace the ignition coil, we can show you on the other side. Just lower the ignition coil into place and twist the bolt back in. Make sure the ignition coil is all the way down, and reconnect the harness. You can see that if you're doing it on this side, you will need to pull that censor out. It just makes it a lot easier, and then it just pushes back in when you're done.
Once you have the harness back in place, push that clip back in. Now you can replace these bolts. We'll fast-forward as Mike does that. Now tighten each of those up preliminarily. Then just torque each of them to 20 foot-pounds. This back one, you just want to tighten firmly by hand, put the stud back in place, and tighten it up with the wrench. Then tighten up that 18mm bolt. Push the air intake box back onto the manifold, and then tighten up that hose clamp. Then take your engine cover, push it back down into place, and replace the oil fill cap.
We hope this video 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.
ICA61433
In Stock
Product Reviews
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4.57/ 5.044
44 reviews
5 Stars
4 Stars
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1 Star
35
4
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Best price around and well worth it
SUMMER
January 24, 2017
i searched every parts store a lot of online stores and could not fine a better deal. What I paid for all 6 Ignition coils I could only have got one any where els. And my car runs better than it ever had before very happy with my purchase and would definitely highly recommend buying from 1 A Auto Part to every one. I called and was one the phone for maybe 5 min and received my parts 2 days later (that was with the over night shipping) well worth it
Ignition Coils
Helen
March 1, 2017
I would recommend the Ignition Coils for the Caddy's they fit great and was easy to install. They made the car run better than when I purchased it. And the service was great. The parts arrived when they were suppose to and in great shape
Highly recommended anytime
Mita
March 11, 2017
I will highly recommended to anyone anytime because their service is way far better. Price and shipping is very low and easy to access
You get what you paid for
Dan
April 30, 2017
Installed a set of these cheap coils on my 09 Enclave. Ran fine for a couple hundred miles then began an occasional miss that got worse. Reinstalled my old coils and runs fine. Lesson learned.
Pleased
J
October 16, 2017
Great.... item arrived right on time. Perfect fit. Quick and easy change.
The Replacement Ignition Coils
william
January 5, 2018
The initial tooling around town is going quite smooth. The necessity for the coils became apparent when the Caddy failed the bi-annual emissions test. After a complete tune-up,; plugs, cleaned throttle, replace fuel filter etc. The ride is hesitation free but the test for the performance will come when I am able to put it on the road for a road trip. To be continued
Amazing
Bianca
January 21, 2018
I can really throttle my baby up again ? #vroomvroom
2009 Acadia ignition coils
M
February 4, 2018
Came on time and were a perfect match to the originals.
Coils
G
March 18, 2018
Very satisfied will recommend to everyone its great guys
Coil ignition
D
May 8, 2018
Everything I get from 1 A auto is what I need. Good product and good price.
Great auto parts
R
June 17, 2018
The parts came when they was suppose to be delivered .
The parts was installed and worked perfectly.. I am very please the way my car is running now .. I drove the car to Virginia which was about 300 miles and everything is running fine... the big bonus is that the parts was a lot cheaper than my neighborhood auto parts store so i saved over 50% on the cost of the parts which I was very happy with ... I will be ordering more parts in the future for sure ..
A big thanks to all you guys at A1auto ...
Yours truly.
#TRANSPORTERCHARLIE
Philadelphia. Pa.
Spark plug coils
Adam
July 6, 2018
Everything seems ok with coils tested every one all pass flawlessly
Finding the right part and receiving it on time
F
August 12, 2018
Half out Finding I found that the easy step-by-step video the right part and receiving it on timeWrite your review here. It must be at least 50 charactersI found long. Consider whether you would recommend this product and what you like or dislike about it.
Great service
J
August 14, 2018
Got my parts cheaper than the auto parts places and very fast delivery. I will definitely use then again and also recommend them to my friends.
Derrick
August 31, 2018
Everything was in order and came in a timely manor! I am so Happy that I was turned on to 1a by a co worker . I have been buying parts for my family members as well.
Cadillac tune up
G
September 6, 2018
The six ignition coils that I purchased from you at a great low price for a tune-up on my Cadillac work great the car is now ready to race ??other words it's running fantastic thanks again 1A Auto G.Nutt
Product not compatible, but I made it work.
L
September 17, 2018
The bolts that came with the coils did not fit and it snapped off inside creating a major headache. Frustrating set back. Had to go to hardware store to find correct bolts. But For the price, I still think it was worth the trouble.
Experience
J
October 3, 2018
I will order again from 1A Auto, no problems at all. The price was very competitive.
Great price and fast delivery
V
January 10, 2019
If you want great customer service, low prices and on time delivery 1Auto is the place!
Perfect
E
January 12, 2019
My order was on time with shipping very satisfied with parts on my car now thanks
Outstanding
G
February 3, 2019
Looked up my parts, on a Sunday. I took a shot in the dark and called 1A, Surprisingly, the phone was answered. Politely, the gentleman asked if he can help me. We discussed my parts, he gave me conformation that I was correct, and he made me aware of alternate manufactures and pricing. The transaction went smooth as silk.
Thank you
George
Quality Product
P
February 19, 2019
I highly recommend this product. They are made of quality material and looked and felt just like the original equipment. Easy to install and now my 09 CTS runs like new. Purchase these, you will not be disappointed!!
Triggered P035x codes for 2009 Acadia
M
March 18, 2019
Our 2009 Acadia ran fine after installing these but the check engine light kept coming on with P0351,2,3,4,5,6 - basically a code for each coil saying open circuit. Even after clearing codes and checking for problems nothing would make the codes stop. Ended up putting Bosch coils in and no computer codes anymore. Guess you get what you pay for ...
Coil set
Travis
March 20, 2019
20k plus miles still going great. ...great quality would definitely recommend
Great coils
Mike
April 3, 2019
Parts were well packed and went in smooth as glass. Put them in and drove from mass to Florida (1500 miles 20hours straight) the next morning without any hiccups so far they work perfectly and by far the best price around!
Satisfied customer
Jerry
July 13, 2019
I had trouble ordering on line. That could have just Been me. I called 1aauto and was met with a friendly voice and a willingness to help. The parts were delivered quickly. I put them on and now my wife is happy so I am happy.
Thank you
Work great
Bruce
October 3, 2019
Received 1 day earlier than projected.
These replacements for the OEM parts fit perfectly and all work good.
Best coil set for your money
R
December 16, 2019
Easy installation and incredible price compared to the auto parts stores. Will definitely buy all my auto part here..
These were exactly what I was looking for.
Joshua
January 1, 2020
I installed these the day they got here and now our car is running very smooth. As a side note I did replace the spark plugs at the same time so I do recommend that you do that as well for the best results.
The coil set quality is truly exceptional. They look and feel of these are almost identical to my previous Bosch set (OEM). I was so happy and impressed with this buy. You are getting a truly incredible deal by making this purchase.
The shipping was very quick. I had these in my hand not quite 30 hours after I placed the order.
Overall, I was highly satisfied with my purchase and I believe that anyone else that makes this purchase will be as well.
Thank you 1A Auto, stay safe and HAPPY NEW YEAR!! Welcome to 2020!
Joshua Horton
Coil packs
A
March 25, 2020
This product was easy to install and a wonderful item
6 piece coil set & spark plugs
J
November 1, 2020
I was very pleased with the coil set & spark plugs & the tutorial of how to install. My wife loves her Gmc Acadia & is very happy driving it I've ordered parts from 1AAUTO in the past & have always been happy with the quality & happy with how to videos thank you for your service Jerry.
Cts 6 pack coil pack
Jacquelyn
November 2, 2020
I ordered the CTS CADillac coil pack set from 1 AAuto.com and was happy i could so. They were received at my address in good condition and in a very timely manner. Therefore, the mechanic was able to complete his task.
Excellent as always!
M
November 15, 2020
The price was right and the speed of delivery was great. Got me back up and running again.
ignition coil
D
January 5, 2021
received it on time along with spark plug now car runs smoothly and check engine light gone
Outstanding Service
John
June 17, 2021
Excellent Quality,
Timely delivery.
Great product
Ty
July 22, 2021
Great product. Fit as should no issues.
1Aauto does the trick again!
Kurt
August 20, 2021
Coils and plugs did the trick! Thanks for the great video!
coil set
Peggy
October 10, 2021
Working great, my Acadia no longer sputters on hills!
ken
February 16, 2022
great parts ! car is awful never buy a Cadillac again , nor any GM product.Tanks 1a auto for great videos and parts . Warning to all never buy a GM with a 3.6 .
Gilbert
March 6, 2022
Great ??
Great Buy
james
September 7, 2022
Purchased and watched the videos - there are 2. one has you remove the wipers and shield(unnecessary) the other, gets right to it. Had I not watched/work, I would have been done in 30/45 minutes. Instead, little over an hour. So for around $200 and an hour of my time, I changed all 6 plugs and coil packs vs the $1200 the shop wanted for spark plugs and 1 coil pack. Reason for 4 stars, had to purchase gaskets elsewhere, and and a little pack of dielectric grease would've been nice.
Overall, a great buy.
Bad
Gavino
December 2, 2022
After 5 months of when they where put in I now have multiple miss fire code.
The ones for the 3.6 DI engine.
Richard
September 27, 2023
They fit the DI 3.6L engine. Many others do not.
Fixed the issue
Andrew
December 28, 2023
Seem to be working great, took care of the issues I was having!
Customer Q&A
Hey my 2007 cts has a constant ticking sound coming from one of the coils my check engine light is on and so I need to know what needs to be replaced?February 22, 2018
Tosh I
10
We are unable to diagnose your problem, because there could be multiple reasons why you're experiencing this particular difficulty. We suggest you take your vehicle to a reputable shop close to you to identify the problem. Once you know the cause of your problem please feel free to call us toll free at 888-844-3393. We'll be happy to see if we carry the parts needed for the repair.
March 6, 2018
Adam G
Do I need spark plug coil boot and spark plugs?January 17, 2021
Michael F
10
We are more than happy to assist you in locating these parts, can you provide the year, make, model and engine size of your vehicle?
January 19, 2021
Christa R
How do I know if my cadillac cts is a 7 or a V to order the parts? 2 different tipe of coil. Long or short coils?October 18, 2022
Aurelio G
10
Please provide your 17-digit VIN so we can confirm fitment, thank you!
October 18, 2022
Jessica D
Customer service
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