Welcome to the North American Subaru Impreza Owners Club Friday December 6, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Newbies & FAQs

Notices

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

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







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 12-02-2019, 08:38 PM   #1
Codyisin
Scooby Newbie
 
Member#: 505768
Join Date: Aug 2019
Default Random Isuess

Hello All,
I have a 2010 Subaru Impreza 2.5i with a 2010 Subaru forester 2.5 engine i swapped in back in august due to a rod bearing failure.

Prior to the swap i would vary rarely and randomly get a solid check engine light for Cyl 3 & 4 Misfire sometime's accompanied with an additional code for catalyst below efficiency. Since the swap every time i hit about 4k RPM's i get a flashing engine light and the code is CYL 3&4 Misfire and only sometimes accompanied by a catalyst below efficiency. If i stay below that RPM range i never have issues anymore and i use to get it randomly even if i was under that range with the old engine. I already replaced the coil and that didn't help looking for advice?

Also i have a strange rattle that's gotten worse over time. The rattle only happens during moderate to heavy acceleration not light. I would say its more of a chatter then a rattle honestly. I assumed it was the heat shield and put about 6 hose clamps on and that didn't solve or change the noise one bit. looking for other common rattle ideas other then the heat shield.

Issue
1. Cyl 3 & 4 Misfire Engine light flash
2. Acceleration Rattle
Codyisin is offline   Reply With Quote
Old 12-02-2019, 09:29 PM   #2
yarrgh
Scooby Specialist
 
Member#: 80465
Join Date: Jan 2005
Chapter/Region: RMIC
Location: Denver
Vehicle:
2001 2.5RS
Black Diamond Pearl

Default

That rattle might be pinging, use a higher octane gas and see if that helps.
yarrgh is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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
Forum Jump

All times are GMT -4. The time now is 12:08 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.