Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Mondeo

Reply
 
Thread Tools Display Modes
Old 16-06-2024, 04:50 PM   #1
C #
MacClive
 
Join Date: May 2024
Posts: 3
Default Cylinder 1 not firing on 2007 Mondeo XR5

I just replaced the head gasket on my 2007 Mondeo XR5 and am having an issue with Cylinder 1 not firing.

Th engine light is NOT on.

Car idles OK, but if I disconnect and reconnect the coil lead on Cylinder 1 there is no change in performance.

If I disconnect any other coil performance deteriorates and then gets better when it is reconnected (as you wourl expect.

My ODB intermittently tells me that Cylinder 1 is failing with a P301 error code.

If I am driving, it feels like the cylinder is trying to kick in when I accelerate.

We've tested the spark, which looks strong and have swapped coils and sparkplugs with other cylinders.

We listened to each injector using a screwdriver as a stethescope and they all sound the same.

Any suggestions appreciated.
C # is offline   Reply With Quote Multi-Quote with this Post
Old 16-06-2024, 07:14 PM   #2
aussiblue
FG XR6 Ute & Sedan
Donating Member3
 
Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 23,386
Technical Contributor: For members who share their technical expertise. - Issue reason: Has been floating around the oze tech section for a long time and is always there to give advice when people have an issue. 
Default Re: Cylinder 1 not firing on 2007 Mondeo XR5

How many km has it done? Have you checked the compression on all cylinders?
__________________
regards Blue
aussiblue is offline   Reply With Quote Multi-Quote with this Post
Old 17-06-2024, 07:13 AM   #3
C #
MacClive
 
Join Date: May 2024
Posts: 3
Default Re: Cylinder 1 not firing on 2007 Mondeo XR5

She's done just shy of 200k

Thanks for the tip. We'll check the compression next session
C # is offline   Reply With Quote Multi-Quote with this Post
Old 24-06-2024, 06:59 AM   #4
C #
MacClive
 
Join Date: May 2024
Posts: 3
Default Re: Cylinder 1 not firing on 2007 Mondeo XR5

The cylinder 1 issue ended up being a valve issue so we had to take the head off again. Fixed that up and now we cant start the engine.
- Timing is right
- We have good sparks
- Engine turns over but just wont start.
It "feels" like the motor isn't turning over as fast as it used to. I'm wondering if it could be starter motor, but an advice appreciated.
C # is offline   Reply With Quote Multi-Quote with this Post
Old 24-06-2024, 08:41 AM   #5
Citroënbender
DIY Tragic
 
Citroënbender's Avatar
 
Join Date: Apr 2018
Location: Sydney, more than not. I hate it.
Posts: 22,353
Chairman's Award: Chairman's Award - Issue reason: Your outstanding contributions to this community have not gone unnoticed. IN my view you are a worthy recipient of the (rarely used) Chairman's Award. 
Default Re: Cylinder 1 not firing on 2007 Mondeo XR5

What fault codes are you getting?

Will it catch on ether spray but not continue to run?
Citroënbender is online now   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 03:12 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL