Problem with 1st (possible synchro?)
12-05-2007, 04:41 PM
#1
1st Gear Member
Thread Starter
Join Date: Apr 2007
Location: Los Angeles FTW!
Posts: 87
Problem with 1st (possible synchro?)
Hi guys, this is a question for the MT owners. Sometimes when I am a stop and I try to put it in 1st it just won't go - period. It feels like it is hitting some sort of stop. I can force it in and sometimes I get a click and it will go in (other times it will stay half-in and then when I take off, it pops out and will not go back in, grinds, synchro has to engage first).
If I pull it into 2nd and then back into 1st, it is completely smooth and engages fine. It also feels like my old '84 T-5 used to when going into reverse - sometimes you had to go into neutral first otherwise no way it will go into reverse.
So, I'm thinking this is a problem with the synchro for 1st. I only have 10K miles on it and it's been happening since at least 5K. I've taken it to the dealer twice and they claim they can't reproduce the problem. I've tried to find a pattern (i.e., stopping with downshifting through each gear, coasting to a stop and then going into 1st, putting it in neutral first, etc.) but have not been able to.
Any ideas? This is with my stock shifter - I have not put the tri-ax in yet and am not sure if I want to do it at this point (don't want the dealer to claim the problem is with the shifter).
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials
If I pull it into 2nd and then back into 1st, it is completely smooth and engages fine. It also feels like my old '84 T-5 used to when going into reverse - sometimes you had to go into neutral first otherwise no way it will go into reverse.
So, I'm thinking this is a problem with the synchro for 1st. I only have 10K miles on it and it's been happening since at least 5K. I've taken it to the dealer twice and they claim they can't reproduce the problem. I've tried to find a pattern (i.e., stopping with downshifting through each gear, coasting to a stop and then going into 1st, putting it in neutral first, etc.) but have not been able to.
Any ideas? This is with my stock shifter - I have not put the tri-ax in yet and am not sure if I want to do it at this point (don't want the dealer to claim the problem is with the shifter).
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials
12-05-2007, 07:36 PM
#2
1st Gear Member
Join Date: Mar 2007
Posts: 85
RE: Problem with 1st (possible synchro?)
I've had other cars act like that - I never really thought about it too much, just go to 2nd then 1st if it didn't want to go smoothly at first, but I've never noticed it on my Mustang. Are you always at a complete stop before shifting into 1st?
12-06-2007, 02:12 AM
#5
3rd Gear Member
Join Date: Apr 2007
Location: Pa
Posts: 763
RE: Problem with 1st (possible synchro?)
It's not a problem. It's quite normal in fact. Basically, when you stop, the gears aren't properly lined up to mesh well, so it won't go into gear. By putting it into another gear (and ANY gear would do, not just 2nd) It's moving the gears slightly enough for first to then go in.
As for not getting into first while moving... that is also by design. The gears for first spin much faster than the rest of the trans, so the synchro's have to work harder and it takes longer for the gear to get in. Three things will help get into first on the move:
1. Blip the throttle to match the RPM's to where you would be moving in 1st.
2. double clutch. This bypasses the synchro's and gets all the gear sspinning agt the same rate again
3. don't go for first until your stopped, or very nearly. 2nd gear is more than capable enough to accelerate in if your not stopped unless your racing.
As for not getting into first while moving... that is also by design. The gears for first spin much faster than the rest of the trans, so the synchro's have to work harder and it takes longer for the gear to get in. Three things will help get into first on the move:
1. Blip the throttle to match the RPM's to where you would be moving in 1st.
2. double clutch. This bypasses the synchro's and gets all the gear sspinning agt the same rate again
3. don't go for first until your stopped, or very nearly. 2nd gear is more than capable enough to accelerate in if your not stopped unless your racing.
12-06-2007, 02:33 PM
#6
1st Gear Member
Thread Starter
Join Date: Apr 2007
Location: Los Angeles FTW!
Posts: 87
RE: Problem with 1st (possible synchro?)
I understand the issue with going into 1st when moving - I'm quite used to it and sure, there's some pushback, etc. and you have to double-clutch or blip the rpm's.
What I'm referring to is when I'm always at a complete stop (waiting for a light to change, etc.). I'm surprised that this is normal behavior - I understand what you're saying about the gears not being lined up, but would have expected much more complaining, etc.
Why does no-one else notice this? Does everyone sometimes have to go into 2nd before 1st when at a complete stop?
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials
What I'm referring to is when I'm always at a complete stop (waiting for a light to change, etc.). I'm surprised that this is normal behavior - I understand what you're saying about the gears not being lined up, but would have expected much more complaining, etc.
Why does no-one else notice this? Does everyone sometimes have to go into 2nd before 1st when at a complete stop?
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials
12-06-2007, 07:05 PM
#7
4th Gear Member
Join Date: Feb 2007
Location:
Posts: 1,885
RE: Problem with 1st (possible synchro?)
Incorrect bud. All of the gears are ALWAYS meshed in the transmissions of all newer cars like ours.
The only thing that changes your gear ratio is a sliding collar that connects the output shaft to a gear combo. Ex. when in 1st, all the other gears are meshed but do not recieve force...
The only thing that changes your gear ratio is a sliding collar that connects the output shaft to a gear combo. Ex. when in 1st, all the other gears are meshed but do not recieve force...
ORIGINAL: GT Bob
It's not a problem. It's quite normal in fact. Basically, when you stop, the gears aren't properly lined up to mesh well, so it won't go into gear. By putting it into another gear (and ANY gear would do, not just 2nd) It's moving the gears slightly enough for first to then go in.
As for not getting into first while moving... that is also by design. The gears for first spin much faster than the rest of the trans, so the synchro's have to work harder and it takes longer for the gear to get in. Three things will help get into first on the move:
1. Blip the throttle to match the RPM's to where you would be moving in 1st.
2. double clutch. This bypasses the synchro's and gets all the gear sspinning agt the same rate again
3. don't go for first until your stopped, or very nearly. 2nd gear is more than capable enough to accelerate in if your not stopped unless your racing.
It's not a problem. It's quite normal in fact. Basically, when you stop, the gears aren't properly lined up to mesh well, so it won't go into gear. By putting it into another gear (and ANY gear would do, not just 2nd) It's moving the gears slightly enough for first to then go in.
As for not getting into first while moving... that is also by design. The gears for first spin much faster than the rest of the trans, so the synchro's have to work harder and it takes longer for the gear to get in. Three things will help get into first on the move:
1. Blip the throttle to match the RPM's to where you would be moving in 1st.
2. double clutch. This bypasses the synchro's and gets all the gear sspinning agt the same rate again
3. don't go for first until your stopped, or very nearly. 2nd gear is more than capable enough to accelerate in if your not stopped unless your racing.
12-06-2007, 10:20 PM
#9
3rd Gear Member
Join Date: Nov 2006
Location: Oceanside, NY
Posts: 681
RE: Problem with 1st (possible synchro?)
ORIGINAL: 22kart22
I only have problems goin into first when rolling. The synchros seem to not function right, but when I'm stopped, no problems here
I only have problems goin into first when rolling. The synchros seem to not function right, but when I'm stopped, no problems here
Your never supposed to go into First if your car is moving at all....only from a dead stop....and also should never down shift to first either
12-07-2007, 12:27 AM
#10
5th Gear Member
Join Date: Jul 2006
Location: New Orleans
Posts: 4,491
RE: Problem with 1st (possible synchro?)
ORIGINAL: dbspcl
Hi guys, this is a question for the MT owners. Sometimes when I am a stop and I try to put it in 1st it just won't go - period. It feels like it is hitting some sort of stop. I can force it in and sometimes I get a click and it will go in (other times it will stay half-in and then when I take off, it pops out and will not go back in, grinds, synchro has to engage first).
If I pull it into 2nd and then back into 1st, it is completely smooth and engages fine. It also feels like my old '84 T-5 used to when going into reverse - sometimes you had to go into neutral first otherwise no way it will go into reverse.
So, I'm thinking this is a problem with the synchro for 1st. I only have 10K miles on it and it's been happening since at least 5K. I've taken it to the dealer twice and they claim they can't reproduce the problem. I've tried to find a pattern (i.e., stopping with downshifting through each gear, coasting to a stop and then going into 1st, putting it in neutral first, etc.) but have not been able to.
Any ideas? This is with my stock shifter - I have not put the tri-ax in yet and am not sure if I want to do it at this point (don't want the dealer to claim the problem is with the shifter).
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials
Hi guys, this is a question for the MT owners. Sometimes when I am a stop and I try to put it in 1st it just won't go - period. It feels like it is hitting some sort of stop. I can force it in and sometimes I get a click and it will go in (other times it will stay half-in and then when I take off, it pops out and will not go back in, grinds, synchro has to engage first).
If I pull it into 2nd and then back into 1st, it is completely smooth and engages fine. It also feels like my old '84 T-5 used to when going into reverse - sometimes you had to go into neutral first otherwise no way it will go into reverse.
So, I'm thinking this is a problem with the synchro for 1st. I only have 10K miles on it and it's been happening since at least 5K. I've taken it to the dealer twice and they claim they can't reproduce the problem. I've tried to find a pattern (i.e., stopping with downshifting through each gear, coasting to a stop and then going into 1st, putting it in neutral first, etc.) but have not been able to.
Any ideas? This is with my stock shifter - I have not put the tri-ax in yet and am not sure if I want to do it at this point (don't want the dealer to claim the problem is with the shifter).
--
dbspcl
'07 GT coupe stick, tungsten-grey metallic, appearance package, interior upgrade, Eibach springs, adjustable panhard, 20" black Foose Nitrous, Roush quarter-window louvers, Steeda tri-ax, Webelectric sequentials