Welcome to the North American Subaru Impreza Owners Club Tuesday March 2, 2021
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Newbies & FAQs

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 01-15-2021, 02:53 PM   #1
silverwrx19224
Scooby Newbie
 
Member#: 500246
Join Date: Apr 2019
Location: MD
Vehicle:
17 WRX
Silver

Default Early Stages of Piston Failure - Get rid of or Fix?

I took my 2017 WRX with 45K miles to the a tuning/dyno shop this week and got news that no subie owner wants to hear. The shop said I have the beginnings of piston failure and I may have a cracked piston or ringland failure.

Before going to the shop the car seemed to be running fine but my Accessport numbers were really worrying me. I changed out my spark plugs and noticed cylinder 3 was super oily and burnt. I reinstalled new spark plugs and soon after my DAM dropped again from 1-0.5. This is when I decided to get a pro to look at the car.

After bringing the car to the shop the tech performed a leak down and compression test on cylinder 3 and said everything seemed normal. After a test drive the DAM dropped to something like .312. They obviously didn't want to put a hurt car on the dyno and told me the news.

He basically said you should either sell the car before things get worse for your wallet or get a new shortblock and tune it for a cost of around $5-8K.

That's too much money in my opinion and I am thinking about what to do.

Do I have to sell the car or do I have other options I havent thought of to save my subie?
* Registered users of the site do not see these ads.
silverwrx19224 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-15-2021, 03:08 PM   #2
BostonShaun
Scooby Newbie
 
Member#: 416873
Join Date: Mar 2015
Chapter/Region: NESIC
Location: Boston, MA
Vehicle:
2015 WRX

Default

I would think ringland failure would show up (or at least an indication) during the leak down test....

Maybe send a boroscope down into the cylinders to take a look for damaged/cracked pistons before anything drastic.
BostonShaun is offline   Reply With Quote
Old 01-15-2021, 03:20 PM   #3
silverwrx19224
Scooby Newbie
 
Member#: 500246
Join Date: Apr 2019
Location: MD
Vehicle:
17 WRX
Silver

Default

Quote:
Originally Posted by BostonShaun View Post
I would think ringland failure would show up (or at least an indication) during the leak down test....

Maybe send a boroscope down into the cylinders to take a look for damaged/cracked pistons before anything drastic.

I believe they did that and said the damage likely is on the side and they are unable to pinpoint where the damage could be
silverwrx19224 is offline   Reply With Quote
Old 01-15-2021, 05:41 PM   #4
Unabomber
👏 Big Ron 👏
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

What shop did you go to as I'm 83% either they are wrong or you missunderstood them. I think its second opinion time. Post your location and I'll refer you to a shop worth a damn. Obviously if you've already been to one of the shops there worth a damn, apologies...but let me know and I'll help.
Unabomber is offline   Reply With Quote
Old 01-16-2021, 08:34 AM   #5
silverwrx19224
Scooby Newbie
 
Member#: 500246
Join Date: Apr 2019
Location: MD
Vehicle:
17 WRX
Silver

Default

Quote:
Originally Posted by Unabomber View Post
What shop did you go to as I'm 83% either they are wrong or you missunderstood them. I think its second opinion time. Post your location and I'll refer you to a shop worth a damn. Obviously if you've already been to one of the shops there worth a damn, apologies...but let me know and I'll help.


Iím near Annapolis Maryland and went to Kinetic Autoworks. They sounded like they knew FA engines and had worked on it tuned a bunch
silverwrx19224 is offline   Reply With Quote
Old 01-16-2021, 11:09 PM   #6
Unabomber
👏 Big Ron 👏
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

https://www.fastwrx.com/

https://sites.google.com/yates-auto.com/home/

Not sure which is closer or who has quicker availability, but either one of these is the nuclear bomb of Subaru knowledge in your area. I've driven 4 hours one way to go to both locations many times...that's how much I heart them both.
Unabomber is offline   Reply With Quote
Old 01-18-2021, 09:23 PM   #7
silverwrx19224
Scooby Newbie
 
Member#: 500246
Join Date: Apr 2019
Location: MD
Vehicle:
17 WRX
Silver

Default

Quote:
Originally Posted by Unabomber View Post
https://www.fastwrx.com/

https://sites.google.com/yates-auto.com/home/

Not sure which is closer or who has quicker availability, but either one of these is the nuclear bomb of Subaru knowledge in your area. I've driven 4 hours one way to go to both locations many times...that's how much I heart them both.


Iíll check them out, I know fastwrx and have used them multiple times. Think it would be good to return the car to the stock tune before bringing it to them?
silverwrx19224 is offline   Reply With Quote
Old 01-19-2021, 08:59 AM   #8
Unabomber
👏 Big Ron 👏
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

No, go see them as is, they care not about returning to stock as they ain't a dealer.
Unabomber is offline   Reply With Quote
Old 02-16-2021, 03:49 PM   #9
silverwrx19224
Scooby Newbie
 
Member#: 500246
Join Date: Apr 2019
Location: MD
Vehicle:
17 WRX
Silver

Default

I went to Mach V and they inspected the car. They recommended I walnut blast the car. I will probably never return to the first shop. $750 vs selling or buying a new engine
silverwrx19224 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 07:18 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.