Welcome to the North American Subaru Impreza Owners Club Monday July 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

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 03-03-2001, 08:44 PM   #1
hayscoob
Scooby Specialist
 
Member#: 4544
Join Date: Feb 2001
Location: santa rosa, ca, usa
Vehicle:
2004 STi Aspen White
Bone Stock for now

Post 1st gear down shift problem?

Any one else ever had trouble dowshifting to first gear, say at a stop sign and the gears grind a bit? Seems to have started when the dreaded clutch chattering problem started on my car. <FONT face="Arial">Text</FONT f>
* Registered users of the site do not see these ads.
hayscoob is offline   Reply With Quote
Old 03-03-2001, 08:57 PM   #2
Ken
NASIOC Supporter
 
Member#: 34
Join Date: Jun 1999
Chapter/Region: VIC
Location: Burnaby, BC Canada
Vehicle:
2005 WRX STi
World Rally Blue

Post

Nope, you aren't going to get it from 2->1 without double clutching. I never bother cause it's a PITA!

In rush hour I will on purpose stay in 1st, at like 3k rpm when I should go to 2nd., but 2 seconds later I will have to slow down to traffic again anyways...
Ken is offline   Reply With Quote
Old 03-03-2001, 09:40 PM   #3
markus
Scooby Specialist
 
Member#: 438
Join Date: Oct 1999
Chapter/Region: W. Canada
Location: St. Albert, AB, Canada
Vehicle:
2004 STi
White on Gold

Post

Downshifting to 1st really isn't worth it IMO.

Think about it. By the time you're going slow enough to do that, you may as well just brake. It is afterall cheaper to replace brakes/pads then it is to replace tranny/clutch.
markus is offline   Reply With Quote
Old 03-03-2001, 11:32 PM   #4
Impreza Rider
Scooby Specialist
 
Member#: 756
Join Date: Jan 2000
Chapter/Region: MAIC
Location: Ashburn, Va
Vehicle:
2003 Legacy L wagon
2009 Kawasaki C14

Post

Yeah, I normally double clutch when I come to a stop, but don't actually shift into first until I'm stopped. I think it's pretty commonly assosiated with the syncros.

Jim
Impreza Rider is offline   Reply With Quote
Old 03-04-2001, 01:54 PM   #5
P.K. Motorsports
Scooby Specialist
 
Member#: 1110
Join Date: Mar 2000
Location: USA
Vehicle:
1999 RS
Silver

Post

Do not downshift into first. It is never worth it.
P.K. Motorsports is offline   Reply With Quote
Old 03-04-2001, 06:12 PM   #6
munkis
Scooby Guru
 
Member#: 1847
Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
Vehicle:
Team Broken: V6 GF
rallyarmor.com

Post

what happened to the good post about how to double clutch down shift, I wanted to read it again....i search but got nothing.

Sometimes you have to downshift to first, like going into a driveway, or doing a rolling stop and go. I too have trouble getting it into first gear, second for that matter too, along with the dreaded clutch shudder.

Jay McDade
Auto Tech--Lincoln/Mercury/Jaguar

[This message has been edited by McDade (edited March 04, 2001).]
munkis is offline   Reply With Quote
Old 03-04-2001, 06:29 PM   #7
RidinLow
Scooby Guru
 
Member#: 329
Join Date: Sep 1999
Chapter/Region: Tri-State
Location: NJ
Vehicle:
1995 325i
Arctic Gray

Post

clutch in
lever to neutral, start matching revs
clutch out
clutch in, slide lever into first & quickly release the clutch as soon as the rpm's are in the right spot
go!

Easier to think about than it actually is to execute, so start practicing!
RidinLow is offline   Reply With Quote
Old 03-04-2001, 07:41 PM   #8
tmat3
Scooby Specialist
 
Member#: 2817
Join Date: Nov 2000
Location: NYC and Troy, NY
Vehicle:
2001 Impreza 2.5RS
BRP

Post

My response is the same as others. Unless you're going less than 3mph, shift into the 2nd gear. It takes a while for me to shift into the 1st gear in any car (especially in cold weather), so I just shift into the 2nd and start from there.
tmat3 is offline   Reply With Quote
Old 03-04-2001, 09:17 PM   #9
P.K. Motorsports
Scooby Specialist
 
Member#: 1110
Join Date: Mar 2000
Location: USA
Vehicle:
1999 RS
Silver

Post

Jay/GrindinLow - the problem is this: suppose you are going 40 mph in 4th and want to downshift into first, supposedly because you are planning to accelerate after coming to a stop at a stop sign (and don't know the meaning of "sitting on the clutch" or why it's a bad idea). If you throw the lever to first you are forcing the intermediate shaft to abruptly triple its speed. The synchros will be going such disparate speeds that the gear oil in between them will be churned up to an extremely hot temperature and if you are forceful you will make them mate before they are going the same speed. CRUNCH.

In the situation I described above the right way to do things is to clutch out in neutral and use the brakes to slow the car down. The intermediate shaft will coast down on its own fairly quickly and when you come to a stop the speed difference will be small.

In the above scenario if you were trying to rev-match and manually synch the speeds with the engine, you could not do it because 40 mph in first is beyond redline!

Shifting into first to go up a driveway is not downshifting. I have one of these at the entrance to my place. I approach the driveway in second and shift into neutral, releasing the clutch. I use the brakes and the incline to slow me as I approach the steep part. As the car slows to about 1 mph I shift into first and proceed. This is not a downshift as we usually speak of downshifts.
P.K. Motorsports is offline   Reply With Quote
Old 03-05-2001, 11:42 AM   #10
ImprezaRS dot com
over boosted again
Moderator
 
Member#: 1458
Join Date: May 2000
Chapter/Region: RMIC
Location: Colorado Springs CO USA
Vehicle:
2013 B9 Tribeca LTD
2005 Impreza 2.5 RS

Post

Sorry, but I think his synchros might be going. You should be able to safely shift into first at speeds up to 15-20 mph if you are blipping the throttle. But, sitting at a light and grinding into first, or not being able to downshift to get into your driveway is not right.

Larry www.ImprezaRS.com
ImprezaRS dot com is offline   Reply With Quote
Old 03-05-2001, 09:50 PM   #11
hayscoob
Scooby Specialist
 
Member#: 4544
Join Date: Feb 2001
Location: santa rosa, ca, usa
Vehicle:
2004 STi Aspen White
Bone Stock for now

Post

my problem isn't when i am traveling down the road at 40 mph they try to jam my shifter in to 1st gear. If i drove that way i would not have purchased a 2.5rs in the first place. my trouble is when i slow down to a stop or to make a right turn at an intersection when i am traveling relativly slow i move the shifter into 1st gear bliping the throttle also and it still grinds. it doesn't happen all of the time mostly when the car is cold. I have been driving a manual trany all of my life and never had trouble like this.
hayscoob is offline   Reply With Quote
Old 03-05-2001, 10:16 PM   #12
ImprezaRS dot com
over boosted again
Moderator
 
Member#: 1458
Join Date: May 2000
Chapter/Region: RMIC
Location: Colorado Springs CO USA
Vehicle:
2013 B9 Tribeca LTD
2005 Impreza 2.5 RS

Post

It's the synchros, I swear!

Larry
ImprezaRS dot com is offline   Reply With Quote
Old 03-06-2001, 09:38 AM   #13
ChaosThom
Scooby Newbie
 
Member#: 1507
Join Date: May 2000
Location: Clover, SC
Vehicle:
2003 Tiburon
Rally Red

Post

I had this problem. Eventually, 5th gear started coming out while going down the road. It turned out that a nut had backed off in my transmission. When I drove it into the dealership for the third time, the transmission totaly failed to go into any gear. Subaru knows this nut is defective. I had 10,300 miles on it.
ChaosThom is offline   Reply With Quote
Old 03-06-2001, 01:32 PM   #14
smacksube
Scooby Specialist
 
Member#: 4067
Join Date: Feb 2001
Vehicle:
01 2.5 rs
silver

Post

considering the high first gear ratio on the rs tranny, dropping into first is difficult but requires some 'elbow grease, I don't drop back into first unless I'm going 20 or below and want the instant acceleration. But first only takes you to a tad above 30 anyways, so whatever....
smacksube 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
1st gear problems. Anybody else have this problem? Travis Graham Transmission (AT/MT) & Driveline 4 04-21-2006 06:28 PM
tiptronic gear display/shift problem tweekernyc Transmission (AT/MT) & Driveline 2 11-29-2005 12:30 AM
1st Gear and Reverse Problems redoktober_99 Service & Maintenance 5 04-17-2002 06:38 AM
2nd to 1st gear down shift? TallguY Factory 2.0L Turbo Powertrain 16 01-15-2002 09:04 PM
1st gear holding back....problem? avalanche165 Factory 2.0L Turbo Powertrain 13 12-26-2001 03:34 PM


All times are GMT -4. The time now is 10:00 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.