Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Jeep Wrangler JK
JK General Discussion
No spark from new coil #3 but fine on #6
Reply to thread
Message
<blockquote data-quote="Vman" data-source="post: 443707" data-attributes="member: 22091"><p>You could have a damaged/pushed pin or corrosion on the PCM side causing a short or something.</p><p></p><p>That the new coil worked for an hour or so before failing like the old one I bet something is whacking the internal coils of the coil pack.</p><p></p><p>That it's the same one is peculiar and may just be a coincidence, or maybe the physical internals result in #3 always getting hit in that pair....I dunno.</p><p></p><p>It is a bit of a head scratcher for such a simple circuit.</p><p></p><p>My background is in avionics, not vehicle mechanics, but whenever I'd see a new replacement part fail in the same way as the replaced failed part, I was usually looking at a short or bad connector.</p></blockquote><p></p>
[QUOTE="Vman, post: 443707, member: 22091"] You could have a damaged/pushed pin or corrosion on the PCM side causing a short or something. That the new coil worked for an hour or so before failing like the old one I bet something is whacking the internal coils of the coil pack. That it's the same one is peculiar and may just be a coincidence, or maybe the physical internals result in #3 always getting hit in that pair....I dunno. It is a bit of a head scratcher for such a simple circuit. My background is in avionics, not vehicle mechanics, but whenever I'd see a new replacement part fail in the same way as the replaced failed part, I was usually looking at a short or bad connector. [/QUOTE]
Verification
Post reply
Jeep Wrangler JK
JK General Discussion
No spark from new coil #3 but fine on #6
Top
Bottom