2012 12C misfire issues after oil change - McLaren Life
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 1 Old 03-05-2019, 01:17 AM Thread Starter
Rossi.guilherme's Avatar
Join Date: Mar 2019
Posts: 37
2012 12C misfire issues after oil change

Hello folks, I’m new to the forum and I was hoping that someone here had the same issue and found the problem.

I took my car to the mclaren of SF for a basic oil change, after getting the car delivered back to my work, the car has a huge misfire on bank 5,6,7 and 8 (left side of the engine) and it the engine will shake, rpm will fluctuate during idle as well doing a valve noise due the fluctuating RPM (sounds like a lose nut on the bottom metal pan)

Own the car for 2 years and never had any issue whatsoever. I’m not sure if it’s related to the oil change or just a coincidence. The weird metal noise and misfire disappears during cold start, it will appear once the engine warms up.

Tried to look everywhere for a lead or a tip to find solution for this issue but no luck.

I find very odd to be misfiring on all the cylinders on the driver side of the engine. Also very odd to appears right after an oil change which technically speaking should have nothing to do with the misfire.

If anyone can help, I greatly appreciate it.
Thanks folks!
Rossi.guilherme is offline  

Quick Reply

Register Now

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

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


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

Email Address:


Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tips & Suggestions: McLaren MP4-12C Oil Change Valentin McLaren MP4-12C 13 06-02-2019 06:01 PM
Traction Control acting strange after tire change... sdmp412c McLaren MP4-12C 1 10-08-2018 01:35 PM
650S change from ceramic to iron brakes - do I need to change the calipers? dgarrity McLaren 650S 2 03-20-2018 05:22 PM
Might have issue after oil change???? flhomesite McLaren 650S 1 07-13-2017 11:13 PM
12c Horn honks after shut off after driving in the rain? ima2nr McLaren MP4-12C 2 01-22-2017 07:41 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