cyl misfire and coolant in the plug well - Kawasaki ATV Forum
Kawasaki KFX700 V-Force Kawasaki's big-bore, V-twin sport machine!

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 11-13-2018, 01:04 PM Thread Starter
Member
Feedback Score: 0 reviews
 
Join Date: Jun 2015
Location: Kentucky
Posts: 47
cyl misfire and coolant in the plug well

My '11 Crown vic with 270k miles suddenly started running rough mostly at the lower end of the gears. By the time you got into o/d the whole car shook. Scan tool gives me P0307 cyl 7 misfire, and P0316 misfire upon startup. So I pull the coil on 7 to find a pool of burnt smelling coolant about 2" deep. Siphoned and blew it out and removed the plug to find it's electrodes fouled with a thin coat of something shiny and black. Rubbed off without much effort. The plugs are about 4 weeks and 1500 miles old. Pulled cyl 6 coil right next to it and found a lot of white particles about half the size of rice stuck to the sides of the plug well walls. Seemed odd as I'd just blown out all the plug wells a month ago. Blew it out again and removed the plug to reveal electrodes that were coated slightly white. This plug had a ring of a black just south of the hex part. Looked like darkened sort of coagulated oil. Wiped off easily.

The car drives much better now after blowing the antifreeze out of the plug well but the miss is still there. So glad as this might buy me some time to get this figured out.

I'm not even sure how it's possible for coolant to get in a plug well. Any ideas, head gasket maybe? What's my next step in investigating?
bradleyheathhays is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 11-14-2018, 09:08 PM Thread Starter
Member
Feedback Score: 0 reviews
 
Join Date: Jun 2015
Location: Kentucky
Posts: 47
I've gotten advice that this may be a leaky intake manifold or gasket. Is there a test I can perform that confirms it's my intake manifold that's leaking before I start taking parts off?
bradleyheathhays is offline  
post #3 of 5 Old 11-15-2018, 07:00 PM Thread Starter
Member
Feedback Score: 0 reviews
 
Join Date: Jun 2015
Location: Kentucky
Posts: 47
anyone please?
bradleyheathhays is offline  
Sponsored Links
Advertisement
 
post #4 of 5 Old 11-15-2018, 09:06 PM
Member
Feedback Score: 0 reviews
 
Join Date: May 2013
Location: NM
Posts: 66
Bradley, You have probably not received any responses because this is a Kawasaki KFX 700 4 wheeler section, not one for a Crown Victoria. However, I would guess that yes, either a blown head gasket, cracked cylinder or head.
nachop is offline  
post #5 of 5 Old 11-15-2018, 11:14 PM Thread Starter
Member
Feedback Score: 0 reviews
 
Join Date: Jun 2015
Location: Kentucky
Posts: 47
Thanks for helping a stranger. Found the leak at the front driver side corner of the intake manifold. Really wish it wasn't so cold out now.

Any last advice on an inexpensive source for an OEM intake mainfold? Considering how much this car is driven I better stay away from after market.
bradleyheathhays is offline  
Reply

  Lower Navigation
Go Back   Kawasaki ATV Forum > Kawasaki ATV Performance / Maintenance / Technical > Kawasaki KFX700 V-Force

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Just Done My Spark Boot Mod 700Bullet Kawasaki KFX700 V-Force 76 12-17-2007 03:29 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome