follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > 1st Gens: Scion FR-S / Toyota 86 / Subaru BRZ > Scion FR-S / Toyota 86 GT86 General Forum

Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86


User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-01-2022, 02:11 AM   #1
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
FRS Rod Knock - Estimated Repair Costs

Hi. I have a 2015 AT FRS and have been hearing rod knock from my engine. I wanted to get an idea of what I can expect to pay for the repairs. Any mechanics here or people who've had it done that can chime in? (Please also let me know which state you got the work done in since cost can vary.)

Is it cheaper to repair it or do an engine swap? How much can I expect to pay total for an engine swap? Thanks!
FR & S is offline   Reply With Quote
The Following User Says Thank You to FR & S For This Useful Post:
humfrz (01-01-2022)
Old 01-01-2022, 12:36 PM   #2
Grady
Senior Member
 
Grady's Avatar
 
Join Date: Jun 2017
Drives: BRZ Yellow, 2019 Ranger, 2011 Evora
Location: Dallas
Posts: 1,682
Thanks: 352
Thanked 1,473 Times in 770 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
Garage
These engines are noisy and make strange sounds. The high pressure fuel pump sounds like a rod knock.

If you are paying someone to do the work the lease expensive is a used engine swap.
Grady is offline   Reply With Quote
Old 01-01-2022, 12:45 PM   #3
TommyW
Senior Member
 
TommyW's Avatar
 
Join Date: Feb 2017
Drives: '13 Whiteout
Location: San Clemente
Posts: 1,491
Thanks: 496
Thanked 1,242 Times in 673 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Replacing with a used engine is the cheapest by a bit
Replacing with a new shortblock is more but you don't have to worry about the used engine going out again. Range would be 5-8-10 K depending on your decision.
TommyW is offline   Reply With Quote
Old 01-01-2022, 12:56 PM   #4
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thanks for the replies so far. If any others want to chime in, please do so. More info, the better.

FWIW, the interval of the knocking sounds is somewhat consistent but the frequency (higher vs. lower pitch sound) is not as consistent. It fluctuates from higher to lower back to higher. (Don't know if that helps identify a rod knock vs. high pressure fuel pump problem)

Sounds like I may be better off selling the car since I'm not attached to it.

Last edited by FR & S; 01-01-2022 at 01:12 PM.
FR & S is offline   Reply With Quote
Old 01-01-2022, 01:11 PM   #5
TommyW
Senior Member
 
TommyW's Avatar
 
Join Date: Feb 2017
Drives: '13 Whiteout
Location: San Clemente
Posts: 1,491
Thanks: 496
Thanked 1,242 Times in 673 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by FR & S View Post
Thanks for the replies so far. If any others want to chime in, please do so. More info, the better.

FWIW, the interval of the knocking sounds is somewhat consistent but the frequency (higher vs. lower pitch sound) is not as consistent. It fluctuates from higher to lower back to higher. (Don't know if that helps identify a rod knock vs. high pressure fuel pump problem)

Sounds like I may be better off selling the car since I'm not attached to it.
You'll have a hard time selling it however sometimes people are willing to buy these cars and do the work themselves as long as the price reflects the need for a new engine.
TommyW is offline   Reply With Quote
Old 01-01-2022, 06:30 PM   #6
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Come to think of it, the sound (although much quieter) began after the dealership resealed the front timing cover 1.5-2 years ago. Could that job create the rod knock issue? Problem is the dealership won't own up to it and the car is no longer under warranty. I should have brought it right back to them assuming it is rod knock.
FR & S is offline   Reply With Quote
Old 01-01-2022, 10:07 PM   #7
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,861
Thanks: 28,777
Thanked 31,796 Times in 16,418 Posts
Mentioned: 707 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by FR & S View Post
Hi. I have a 2015 AT FRS and have been hearing rod knock from my engine. I wanted to get an idea of what I can expect to pay for the repairs. Any mechanics here or people who've had it done that can chime in? (Please also let me know which state you got the work done in since cost can vary.)

Is it cheaper to repair it or do an engine swap? How much can I expect to pay total for an engine swap? Thanks!
How did you conclude the sound is a rod knocking?

Did you get a second opinion from a mechanic about that sound?

If you would post a video/audio of the sound, we could give our opinion.

Since your car is an AT, some have reported that a vacuum pump located on the passenger side of the engine, towards the back can give a "knocking sound". You may wish to give a listen back there.

Good luck!
humfrz is offline   Reply With Quote
The Following User Says Thank You to humfrz For This Useful Post:
FRSapex (01-23-2023)
Old 01-03-2022, 11:51 AM   #8
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I concluded the sound is rod knocking by researching online and hearing various clips from other FR-S owners on Youtube. I did not get an official diagnosis but will have it checked out. I wanted to do preliminary research and get an idea of what I can expect to pay for a repair/decide if it's worth it to put more money into my car.
FR & S is offline   Reply With Quote
Old 01-03-2022, 01:30 PM   #9
TommyW
Senior Member
 
TommyW's Avatar
 
Join Date: Feb 2017
Drives: '13 Whiteout
Location: San Clemente
Posts: 1,491
Thanks: 496
Thanked 1,242 Times in 673 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Mine

TommyW is offline   Reply With Quote
Old 01-03-2022, 11:42 PM   #10
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thanks Tommy.

It actually sounds a lot like this... (specifically the sound you hear more clearly at the 0:09 and 0:19 marks) If the problem is one in the same, looks like it is the vacuum pump.



humfrz, the sound does seem to be coming from the passenger side. if it is the vacuum pump, i'm thinking that's a significantly cheaper job. i wonder if it's something i can tackle on my own. i'll need to see if a DIY exists on Youtube.
FR & S is offline   Reply With Quote
Old 01-04-2022, 12:19 PM   #11
x808drifter
LMGTFY
 
x808drifter's Avatar
 
Join Date: Mar 2016
Drives: 13 FRS, 91 Miata
Location: Lava Town, HI
Posts: 2,776
Thanks: 5,561
Thanked 3,646 Times in 1,625 Posts
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
IIRC if that is the vacuum pump it's fine so its free.
x808drifter is offline   Reply With Quote
Old 01-04-2022, 10:21 PM   #12
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
haha. thanks. i would like to fix it. :-)
FR & S is offline   Reply With Quote
Old 01-06-2022, 12:42 AM   #13
manwichmakesameal
Junior Member
 
Join Date: Sep 2021
Drives: 2020 86, 2023 GR86, 2002 IS300
Location: United States
Posts: 8
Thanks: 0
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by FR & S View Post
Come to think of it, the sound (although much quieter) began after the dealership resealed the front timing cover 1.5-2 years ago. Could that job create the rod knock issue? Problem is the dealership won't own up to it and the car is no longer under warranty. I should have brought it right back to them assuming it is rod knock.

Wait, you heard a noise you thought was rod knock and you drove it for 2 years with it?
manwichmakesameal is offline   Reply With Quote
The Following User Says Thank You to manwichmakesameal For This Useful Post:
Tcoat (01-06-2022)
Old 01-06-2022, 11:17 AM   #14
FR & S
Member
 
Join Date: Nov 2019
Drives: 2015 FR-S - Automatic
Location: United States
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by manwichmakesameal View Post
Wait, you heard a noise you thought was rod knock and you drove it for 2 years with it?
I didn't think it was anything serous until recently. The sound has gotten louder more recently.
FR & S is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Knock Knock? Expired Warranty Frivo Issues | Warranty | Recalls / TSB 20 08-17-2020 09:04 PM
Estimated costs for out of warranty repair work? tracerit Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) 9 03-24-2016 02:03 PM
Estimated Max HP for a N/A setup. kayoh Engine, Exhaust, Transmission 67 02-19-2016 12:43 AM
Repair Costs discretion Scion FR-S / Toyota 86 GT86 General Forum 29 11-24-2015 10:27 PM
Estimated Price.. SLeRoux92 Scion FR-S / Toyota 86 GT86 General Forum 44 05-25-2011 11:58 AM


All times are GMT -4. The time now is 09:09 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.