engine misfire on acceleration - EnclaveForum.net: Buick Enclave Online Community
 
LinkBack Thread Tools
post #1 of 5 (permalink) Old 01-13-2019, 05:43 PM Thread Starter
Newbie
 
Join Date: Jan 2019
Posts: 5
engine misfire on acceleration

We have owned an 09 Enclave CXL for almost four years. The car had 69,000 miles when we bought it, it now shows 135,000. The problem we have now, that did not change after the throttle body and throttle position sensor were changed on recall, is the engine picks up a misfire just prior to a downshift at highway speeds, in cruise control or not. Getting ready to replace all spark plugs and coils but problem existed at 75,000 so don't expect any change. Buick dealer did a check once but found nothing. Any possible known causes?
doubledodge99 is offline  
post #2 of 5 (permalink) Old 01-14-2019, 01:36 PM
Enclave GOD!
 
Join Date: Sep 2009
Posts: 6,423
being a 2009- it points to the plugs and coils.


But you may find a little oil in the spark plug hole. (from porosity in the head).
at this point- just clean it up- and change the plugs.

2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500
rbarrios is offline  
post #3 of 5 (permalink) Old 01-14-2019, 05:37 PM Thread Starter
Newbie
 
Join Date: Jan 2019
Posts: 5
Thanks a lot for your answer, I will have to wait and see until after the tune up, which is a big pain you know where.
doubledodge99 is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 01-16-2019, 08:01 PM
Sr. Member
 
electbc's Avatar
 
Join Date: Jan 2015
Posts: 293
CEL on that misfire?
electbc is offline  
post #5 of 5 (permalink) Old 01-17-2019, 08:33 PM
Jr. Member
 
Join Date: Oct 2014
Posts: 57
My 09 started misfiring around 120K miles. It needed full set of plugs and coils. Don't wait too long to do the work. I held off while I figured out what to do and the problem took out the catalytic converter.
Bigal56 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the EnclaveForum.net: Buick Enclave Online Community 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



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