Ignition coils 2015 axis v-10

Dave Randolph

Senior Member
Joined
Oct 8, 2024
Messages
188
Location
Louisville
Has anyone replaced the ignition coils on their Axis v10? Mine has a bad miss when the engine is cold. Runs smootly when warm but under load I can still feel it. I took it to O'Reilly's and their OBD said random misfires, too many to determine where.

At this point, I'm guessing it's a coil but I haven't messed with it yet. I need to get under the hood and check all the connections first. Then take it to a shop and have them use their OBD scanner
 
Has anyone replaced the ignition coils on their Axis v10? Mine has a bad miss when the engine is cold. Runs smootly when warm but under load I can still feel it. I took it to O'Reilly's and their OBD said random misfires, too many to determine where.

At this point, I'm guessing it's a coil but I haven't messed with it yet. I need to get under the hood and check all the connections first. Then take it to a shop and have them use their OBD scanner
Walmart has wireless OBD2 Bluetooth and you can rent or buy the diagnostic program for a laptop or smart phone. Most of us use Torque Pro which is Android only. Everything is less the $12.
 
Hi sir, going to need some more information so everyone here can offer some suggestions. How many miles are on the engine? Original plugs and wires? Also does your rv sit for long periods of time? Could also be a rodent has chewed on some wires in the engine bay. I would start by doing a visual inspection of all plug wires and wires running to the coil packs. Also pull the plugs to see if they are worn and any are black from soot because of misfires. Don't know what kind of scanner O'Reillys used but that is another story, probably a very basic unit. What I have mentioned above should help get you started but most newer model engines such as yours are good for 100,000 miles before needing plugs changed. Let us know the answers to the questions I have asked and we will be able to offer more help. Good Luck
 
Include the MODEL YEAR of your chassis (which may not be the same as the completed coach).
 
When it comes to missing and OBD2 some things can be confusing. If it is a specific cylinder (or cylinders) you may get a code for that cylinder sometimes like P0302, but other times the ECM can't determine which cylinder and just throw up a general misfire code (P0300). If there is no specific cylinder code stored then you may have an issue which effects all cylinders and you have to dig deeper into the ECM.

As an example, I had a misfire code which sometime was P0304 and sometime P0300. The P0304 was a clue to look at cylinder 4. What I found was that Thor had not properly tightened a heater hose junction above cylinder 4 and when warm a drop or 2 of coolant would drop on the coil and plug. The plug had rusted externally enough to cause spark to run from the boot to ground. I fixed the leak and replaced the one plug and haven't had an issue since.
 
Walmart has wireless OBD2 Bluetooth and you can rent or buy the diagnostic program for a laptop or smart phone. Most of us use Torque Pro which is Android only. Everything is less the $12.
is it more sensitive than the one they used at O'Reilly's? I hooked it up then handed it to the guy & he took it inside and hooked it up to something that spit out the message. He said I should take it to a mechanic with a better OBD reader
 
When it comes to missing and OBD2 some things can be confusing. If it is a specific cylinder (or cylinders) you may get a code for that cylinder sometimes like P0302, but other times the ECM can't determine which cylinder and just throw up a general misfire code (P0300). If there is no specific cylinder code stored then you may have an issue which effects all cylinders and you have to dig deeper into the ECM.

As an example, I had a misfire code which sometime was P0304 and sometime P0300. The P0304 was a clue to look at cylinder 4. What I found was that Thor had not properly tightened a heater hose junction above cylinder 4 and when warm a drop or 2 of coolant would drop on the coil and plug. The plug had rusted externally enough to cause spark to run from the boot to ground. I fixed the leak and replaced the one plug and haven't had an issue since.
I'm hoping it is just a loose spark plug wire.
 
Hi sir, going to need some more information so everyone here can offer some suggestions. How many miles are on the engine? Original plugs and wires? Also does your rv sit for long periods of time? Could also be a rodent has chewed on some wires in the engine bay. I would start by doing a visual inspection of all plug wires and wires running to the coil packs. Also pull the plugs to see if they are worn and any are black from soot because of misfires. Don't know what kind of scanner O'Reillys used but that is another story, probably a very basic unit. What I have mentioned above should help get you started but most newer model engines such as yours are good for 100,000 miles before needing plugs changed. Let us know the answers to the questions I have asked and we will be able to offer more help. Good Luck
2015 24.1 2014 E350 chassis 49500 miles. It was fine when I brought it from Colorado in October. I put it in storage but had it at my house working on it almost every weekend. It started acting up in December


As I think about it, I put in a new air filter and it started missing after that. I wonder if I might have knocked the spark plug cable loose or cracked an ignition coil.

If it is still warm tomorrow I will go over and get under the hood and poke and prod the wires to see if anything is loose
 
I have no personal experience with that item but the description looks and reviews look pretty good.

What it does not appear to have is two way communication to change/activate switches and parameters in the vehicle or routines such as ABS bleed or TPMS learn. But you don't need those to troubleshoot a missing issue.

For less money you can get a scanner that also has those features:

 
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Each coil has a connector from the wiring harness. When you have the dog house off, check each connector and it's wires. There should be one for each cylinder. You may have loose connectors that are causing the random misfires.
 
I’ve had Ford Taurus’s & Escapes in my lifetime
All with coil on plug that would fail from time to time for no apparent reason.
The rough idle it causes usually happens after engine warms up
So working on hot engine makes things a bit more challenging.
Keep us posted on your repair
 
I’ve had Ford Taurus’s & Escapes in my lifetime
All with coil on plug that would fail from time to time for no apparent reason.
The rough idle it causes usually happens after engine warms up
So working on hot engine makes things a bit more challenging.
Keep us posted on your repair
mine is actually really bad when the engine is cold and is fairly smooth after it warms up
 

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