Just want to let everyone know that I was able to replace all 3 of the rear ignition coils on a 2007 V6 without removing the intake. Actually there is plenty of room to work on comparing to a Sienna or Camry. It also helps that 2 of the 3 bitter plug connection locks just snap off as soon as i put pressure on it. The other one you can first take off the coil from the engine and then unplug it. (I believe all 3 plug connectors can be taken off the same way) There are plenty of pictures on the other previous posts so there is no problem doing it blind. Or you can take some pictures with a cell phone first. I didn’t replace the spark plugs because I only had a engine code for coils but I see no reason not be able to do it the same way.
Replacing spark plugs and coils on V6 without removing intake
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Rav-O-Matic
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Missing means the engine runs very rough and is way down on power. If it's driving anywhere near normally it isn't missing.
I disagree with the catalytic converter damage theory. That might've been true on a carburetted engine of 20-30 years ago because unburned gas would be dumping into the exhaust. But with fuel injection and one injector for each cylinder that doesn't happen since ASA the ECM detects a miss it shuts the fuel off on that cylinder.
Speaking from my past experience on a camry v6 with a single p0352 code only( coil for number 2 cylinder) with no misfiring code or any other pending code. when I pulled the spark plug out it was soaked with raw gas and it was only driven for less than 2 miles with check engine light on. So I am not sure if the computer will shut the injector off with just ignition coil code. It might shut off the injector if there is a misfiring code as well I guess?
Park it until it is fixed.
Yep, in this case that's what I'd say too.
Just wanted to let you know that I had a mobile mechanic replace my coils and, so far, all is well. I am really hoping I have good luck with the inexpensive coils I bought on Amazon. (I did with the other ones I bought over the past couple of years). Many of the reviews were very good, but some of the bad reviews said the coils failed within a couple of months. I am going to think good thoughts that mine will last at least as long as the 2 year - 24,000 mile warranty that the coils have. Thanks much for all of your great comments and tips!
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I replaced mine with used ones from eBay for around $13 each. Part number is 90919-a2007. They are supposed to be latest version.
I don't quite get the logic of using "used" ones? Wouldn't you want new ones so they last longer? And why would anyone be selling used ones? Have they been reconditioned or something?
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Man I would have kept my Exploder longer had the coil replacement prices been reasonable. The best I could find was $150 CDN EACH for Ford Motorcraft. For a V8 (do the math, it’s bloody terrifying!) I looked at Accel or MSD (heck, or anything else) and they still came out at $50 each. Finally as a broke student with two kids, I went to the JY and got handfuls of used coils for $10 each cash. If they worked, great. If nor, I tossed it and tried the next one! With the prices you folks are throwing around for Toyota coils, it’s hard to see any value in going used.
These are what I brought off eBay. $12 each plus tax. The original ones on my rav4 lasted for over 200k miles so I feel pretty confident about original Toyota parts. For me swapping one out from any cylinder position should probably take me less than 10 minutes even if have to do it again on the side of the road, in the dark, while raining. So it is no big deal.
The problem with super-low priced brand new Toyota coils on the net is that they are most likely fake or counterfeit items. I would rather buy used ones instead. Spark plugs, coils and brake pads are some of the most popular counterfeit parts.
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Yeah the “white box” coils had very poor reviews. I figured better to drop $40 on used coils I pulled myself than $50 on one that might crap out after a month.
Thanks to this thread and this thread, it took about five minutes to replace coil #3 with a Delphi GN10366 using only a 1/4" drive 10mm ratchet wrench. Coil #5 would have been just as easy, and coil #1 seems to be blocked only by a bracket that could be removed independently. The brown connector clip did break off when pressed to release but the connection seems very secure so I'm leaving it alone as others have suggested. OBDII code P0303 - Cylinder 3 Misfire Detected has not returned, so I'm considering this an easy win at 235K miles!
As it turns out, the coil was fine but the plugs were counterfit and failed prematurely, so I just finished replacing them and am following up to confirm that removing the aforementioned bracket allowed easy access to #1. Sweet! Thanks again.
Just changed coils and plugs on my '07 V6 this weekend. 177,000 miles, I bought it at 150,000. I took everything out without taking off the intake plenum. Coils were no problem. Getting the plugs out blind and without much room was tough. Granted I don't know when mine were last changed. They looked pretty rough coming out. Because I wanted to be able to torque the plugs and I didn't have much room behind the plenum I took it off to put everything back in. I was wishing I had just done that from the beginning because it was very easy to get off and back on and it made everything SO much easier.
If I was replacing only coils, I would probably do it without removing the intake plenum. If you're doing plugs and coils, just take it off. Add 15 minutes and save some headache.
If I was replacing only coils, I would probably do it without removing the intake plenum. If you're doing plugs and coils, just take it off. Add 15 minutes and save some headache.
Current Amazon coil pricing DENSO $53 for one.
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I followed this vid:
Used a 1/4 drive ratchet for a bit and a 3/8 drive for some of it. Didn't need to remove the coil clips, seemed to be enough wire to remove entire coil off of the plug. Granted not a ton of room, but definitely can be accomplished without removing a bunch of stuff. Actually easier than plug changes on other vehicles I have owned.
Used a 1/4 drive ratchet for a bit and a 3/8 drive for some of it. Didn't need to remove the coil clips, seemed to be enough wire to remove entire coil off of the plug. Granted not a ton of room, but definitely can be accomplished without removing a bunch of stuff. Actually easier than plug changes on other vehicles I have owned.
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