Jump to content

Other Causes Of Ignition Coil Failure

Recommended Posts

A friend replaced all four brake pads for me about 8 months ago. Within hours of having the car back I got the Check Engine Light, VSC Light, Trac Off, and P0356 error code. The timing seemed odd, but I couldn't see how this could be related to the brake job, so I put in a new coil.

About a month later, another front coil failed (at least according to the error code). I replaced it. Another few months went by, and a rear coil code came on.

I dug in and replaced all 3 rear coils (huge pain, as others have noted). I also did the spark plugs at this time.

A few days ago I got the dreaded light combo plus code P0351 - another rear coil. I should note that the car definitely shakes a bit from time to time when stopped, so it does seem like it's missing. The light is also not constant, but it is on most of the time.

So at this point I'm wondering what else it could be? I have an appointment with a solid Toyota shop next week and they indicated that maybe a cheap (Advance Auto) replacement coil burned out. This could be, but it sure seems like something else is going on.

Any ideas?

Link to comment
Share on other sites

I use dielectric grease before plugging the coil back on the spark plug. Do you wash your engine. if so you may be building moisture up on the coil causing early failure. One other thing what plugs did you put in? I hope not Bosch plugs...stick with Original equipment Iridium NGK or Denso plugs. The bosch plugs are garbage.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...