I have a Mazda 3 2016. A couple of days ago, the engine light on the dashboard turned on. I took the car to an Autozone, and after plugging in the scanner, the result showed that the ignition coil of cylinder four was misfiring.
I ordered ignition coils online with spark plugs and left the car parked in the garage. All replacement parts will arrive next week. Today, I had to run an errand close to my house, and after riding the car for a while (I live in MA), the engine light turned off, and the misfiring is not there anymore.
My question is: should I replace them anyway? The mileage on the car is 76,000, and we have never replaced ignition coils, and the range has decreased considerably.
I would be happy to know your advice.
So specifically I'm asking for a 2007 Toyota Camry with about 100k on it. But also In general, when do you know it's time?
There Is a little bit of striking on the first coil that looks like it's been arcing. Not entirely sure though. There are 3 or 4 horizontal marks each getting fainter as they go up and only on one coil. On all of them however there was some crust coming out from just above the boot, as if something is a little bit chard (looks like a tiny piece of PCB that is meant to be sticking out.)
Unfortunately I don't have any photos but the car does idle a little choppy which is what led me to take a look at the coils and plugs.
Plugs look about shot so I ordered some new ones. The iridium tip on the old ones are starting to crust over quite a bit and the ground strap is visibly thinning.
But yeah if any one can give me an idea on in general when you should replace coils (Also I think these are original, I'd have to double check), I'd greatly appreciate it.
Thanks!
Replacing 2 ignition coil packs (out of 6), 6 spark plugs, intake gasket and thermostat, plus an oil change since they are touching the intake. 2007 Lincoln MKZ... anyone know if PepBoys is ripping me off??
More info: They said the ignition valve and spark plugs are a must and that the intake gasket and thermostat are recommended based on mileage (110,000 miles) and age (2007 model) and wouldnt be charging more labor since they are right by it fixing the mandatory first 2 items. They estimated the gasket to last 1 year if not replaced now, so I might as well do it now. Oil change is recommended, too, as something could fall in when they replace the gasket, even tho I just got an oil change last month.
Located in Arlington, TX (between Dallas & Ft. Worth).
I tried looking up cost for parts, and I dont get close to that figure of ~$1500, but I dont know how difficult it is to access the items, which would impact labor time or if their labor rate is reasonable. Or if they are adding on a gasket/thermostat/oil change is really needed when the gasket isn't likely to fail in reality.
Breakdown of quote: 740 for ignition valves and spark plugs (including labor) 710 for gasket, thermostat, oil change
Thank you for your time. :) Hopefully this is the right place for this sort of request.
Edit to add quote! //imgur.com/gallery/NHR1Tan
Hi,
So I've a VW Polo Blue GT (1.4 TSI 150BHP 4 cylinder) tuned to 180 BHP and the tuner said that I should be replacing the sparkplugs every 15k km (9k miles) and the Ignition coils every 45k km (25k miles)
I feel like he said it to me for my best interests but right after that, he said me how much it would cost me to do it at HIS shop.
I think that my manufacturer recommends to change the sparkplugs every 60k km and change the Ignition Coils when there's a problem. That's why I'm beginning to ask myself questions about the utility to change ignition coils preventively.
If you think I should replace my ignition coils, do you think it's better to go for the most expensives ones ?
Thank you all.
Everyone that replied was spot on. Do not replace the coils with internet junk. Denso makes the coils and they run $40 each on amazon:
Denso 6732302 Ignition Coil //www.amazon.com/dp/B002Y35OE8/ref=cm_sw_r_cp_api_tU9yAbD7RNAT0
Same goes for spark plugs. You will have no problems from denso or NGK (OE suppliers), skip anything else, even if the parts store tells you it’s better.
FYI denso does a ton of stuff for Japanese manufacturers. Alternators, ac compressors, igniting stuff. You can buy from them and get the same exact part that you would get from the dealer, and 1/4 the cost. I’m a toyota guy but there is a ton of overlap. I use //densoautoparts.com/find-my-part.aspx# to lookup part numbers,
then order on Amazon.
Even their cheapest wiper blade is like $8 and lasts for years. There is a difference.
It all depends on what mileage your vehicle is at, and how many miles your current coil packs are on. If they were changed
While your father is right, you don't technically have to replace a coil pack until it stops functioning properly, its wise to do it as preventative maintenance, while you are already taking them out anyways.
When I first picked up my current car at 50,000 miles, I had no evidence that the spark plugs had ever been changed. Like you, I took this opportunity to replace all my coilpacks. The cost of parts alone and ease of replacement was well worth the piece of mind it gave me.