Welcome to the North American Subaru Impreza Owners Club Thursday December 14, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

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.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-11-2017, 05:51 AM   #1
snowghost23
Scooby Newbie
 
Member#: 254059
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Washington
Vehicle:
2004 Impreza WRX
White

Default 2004 WRX - Intermittent grind when shifting to first

Hi all,

It has been a while since I have posted on here - this is because I got out of Subaru's for years related to the need of a diesel truck. Well, time has passed and now I have both again.

I have a 2004 WRX that doesn't love going in to first. Now, I understand this is a fairly common occurrence among Subaru's, especially the older ones like mine. However, even at a stop, from neutral, I can put the clutch to the floor and if I am very quick and abrupt with my shift to first, sometimes I get a brief grind - the transmission does shift to first despite the grind, though. If I am stopped and consciously thinking about shifting from neutral into first (very) slowly, I have never had this happen. It seems to occur when trying to shift gears from neutral to first immediately after depressing the clutch.

Keep in mind I bought 2 days ago, I haven't done anything to it since I bought it to try to fix the issue. The car is probably due for a transmission fluid change, however I thought I would pick your guys' brains being that 90% of you know more than me about Subaru's! What are you recommendations? Is this normal? Abnormal (seems weird from a stop)? Could this be a clutch issue or a transmission issue?

Any advice is valued and appreciated. Thank you in advance for your help!
* Registered users of the site do not see these ads.
snowghost23 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-11-2017, 08:33 AM   #2
Pistonjunkie
Scooby Newbie
 
Member#: 474008
Join Date: Sep 2017
Location: 'Merica
Vehicle:
2004 WRX Wagon
Silver

Default

Funny, I just bought an '04 two days ago and it does the same thing. I just chalked it up to needing a fluid change. We'll see this weekend after I do it...
Pistonjunkie is offline   Reply With Quote
Old 09-11-2017, 09:16 PM   #3
snowghost23
Scooby Newbie
 
Member#: 254059
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Washington
Vehicle:
2004 Impreza WRX
White

Default

Quote:
Originally Posted by Pistonjunkie View Post
Funny, I just bought an '04 two days ago and it does the same thing. I just chalked it up to needing a fluid change. We'll see this weekend after I do it...
Please keep me posted!
snowghost23 is offline   Reply With Quote
Old 09-11-2017, 11:26 PM   #4
Bikelok
Scooby Specialist
 
Member#: 254851
Join Date: Aug 2010
Chapter/Region: BAIC
Location: Nor-Cal Bay Area
Vehicle:
2002 WRX wagon 5mt
PSM

Default 2004 WRX - Intermittent grind when shifting to first

How many miles on the transmission?
Do you have an inclination that it was beat on?

It could just be tired.

Change the fluid first as that's easy and a likely reason.
Search on fluids as the 5 speeds are picky on what is used. RESEARCH!!!

Possibly the clutch master cylinder needs bleeding, but not nearly as likely as old fluid. You would probably have difficulty with all the gears instead of just the 1st gear if it was the master cylinder though.

Oh and this thread should be moved to the transmission/drivetrain forum. This does not pertain to the 2.0l engine. Ask a mod to move it.
Bikelok is offline   Reply With Quote
Old 09-12-2017, 07:13 AM   #5
snowghost23
Scooby Newbie
 
Member#: 254059
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Washington
Vehicle:
2004 Impreza WRX
White

Default

Quote:
Originally Posted by Bikelok View Post
How many miles on the transmission?
Do you have an inclination that it was beat on?

It could just be tired.

Change the fluid first as that's easy and a likely reason.
Search on fluids as the 5 speeds are picky on what is used. RESEARCH!!!

Possibly the clutch master cylinder needs bleeding, but not nearly as likely as old fluid. You would probably have difficulty with all the gears instead of just the 1st gear if it was the master cylinder though.

Oh and this thread should be moved to the transmission/drivetrain forum. This does not pertain to the 2.0l engine. Ask a mod to move it.
Thank you for the response. The transmission has 140k on it. I do believe that the original owner (prior owner before me) was easy on the car. I have no inclination to believe he beat on it solely based on the type of person he was. Just a guess though. I will be changing the fluid ASAP. I contacted the owner and he said that the transmission fluid hasn't been changed in probably 30k miles.
snowghost23 is offline   Reply With Quote
Old 09-12-2017, 07:13 AM   #6
snowghost23
Scooby Newbie
 
Member#: 254059
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Washington
Vehicle:
2004 Impreza WRX
White

Default Moderator move this post

Could I please have a moderator move this post to the transmission forum? Thank you in advance.
snowghost23 is offline   Reply With Quote
Old 09-12-2017, 05:32 PM   #7
rtv900
Scooby Specialist
 
Member#: 428511
Join Date: Aug 2015
Location: philadelphia
Vehicle:
2016 STI

Default

What you are describing makes perfect sense for an old, worn out trans with a worn out synchro (no surprise the 1st gear synchro has the toughest job)

It grinds when you do a 'quick' shift into first because when in neutral and clutch out the engine is spinning the input shaft. Then you push in and don't give it any time to stop (since your out put is stopped) and it grinds. . . the synchro is toast and can't do it's job which is to stop that shaft from spinning.

It works fine when you do it slow (or just push in the clutch and wait 5 seconds) because then the input shaft has time to stop. Once it is stopped there is nothing to grind, nothing is moving!!!!!!!!

So rest assured it is working exactly as a 13 year old manual should. . ..crappy!

An easy fix other than a rebuild if you still want to be able to do it quick is to use a synchro that works to stop the shaft and then go to first WITHOUT ever letting the clutch out again in neutral.
Ex) You are in neutral sitting there, then push in clutch, pull stick down into 2nd for a split second and then immediately up into 1st.
It won't grind. Your 2nd gear synchro stopped the input shaft for you.
Enjoy
rtv900 is offline   Reply With Quote
Old 09-13-2017, 02:31 PM   #8
WilliHaM
Scooby Newbie
 
Member#: 453391
Join Date: Aug 2016
Default

I just wanna bring up the idea that it might help to shift to second then to first every time you stop and go again.

I read this somewhere to get rid of the grind when going to fast but im not sure if it helps with syncro parts.

edit... just read the post above, use that.
WilliHaM is offline   Reply With Quote
Old 09-13-2017, 03:34 PM   #9
rtv900
Scooby Specialist
 
Member#: 428511
Join Date: Aug 2015
Location: philadelphia
Vehicle:
2016 STI

Default

^I have a truck with a non synchro reverse.
Grinds like a mofo unless I just blip it into 3rd and then right over into reverse.

You'd be surprised how quickly that becomes a habit and you never think again before just doing it
rtv900 is offline   Reply With Quote
Old 09-13-2017, 08:53 PM   #10
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

Here's what you do exactly with zero input on your part:

1. Buy 2 quarts of Redline lightweight shockproof oil.
2. Drain transmission.
3. Fill with 2 quarts of Redline lightweight shockproof oil. Top off with whatever 75w90 oil they have on sale at the store.
4. Smoke cigarettes.

When you have done the above, reply back stating how badass I am and how I solved your problem and that you want to send me a mix tape. If I'm wrong, I'll paypal you $20. I back up my advice with cash, come at me bro!
Unabomber 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 03:01 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.