View Full Version : grinding 3rd gear?
hutch1999
12-26-2006, 11:00 PM
When I shift at lower RPMs, right around 1500 to 1900 RPMs, i grind going into 3rd gear and only 3rd gear. I dont really know why because when I shift at higher RPMs it shifts just fine with no grinding. Right now for a quick fix I just make sure to shift over 2000 RPM into 3rd. Any info on what this could be would be helpful. I do have a Pro 5.0 shifter if that makes a difference.
tonyjnjz
12-27-2006, 12:05 AM
very likely syncros...very commen problem as ive read on here..my 99z28 used to do it all the time in 3rd and 5th and somtimes 6th.....i got used to skipping 3rd and 5th unless i was racing .....can either get it fixed or just try not to let it bother u
chieftransam
12-27-2006, 05:52 AM
yeah man i had that problem except mine was grinding in 3rd and 4th. It was my syncros, and as soon as i got it fixed it, there was no more grinding! But I also went ahead and replaced my clutch kit.
hutch1999
12-27-2006, 04:10 PM
how much money are we talkin when replacing the syncros? and will it hurt anything if i just let it go
autotrix
12-27-2006, 07:23 PM
Replacing your syncros can be very expensive! The money it would take to have your trans torn down for just one part could allow for a new manual swap!
hutch1999
12-27-2006, 11:59 PM
sounds like i just need to try to live with it
ThatOneGuy001
12-28-2006, 10:39 AM
Interesting, my car seems to be developing the same problem.
ThatOneGuy001
12-28-2006, 06:33 PM
Only seems to do it when I shift fast, if I shift a bit slower it doesnt seem to do it.
gnomee
12-28-2006, 06:54 PM
I would recommend just living with it. Might as well drive it till it breaks.
I would like to point out that our transmissions 2nd and 3rd gear are not designed to be used unless during hard acceleration. If you read your manual it actually states this.
I only use 2nd and 3rd when I'm on it. 1st-4th-5/6th all the time. Of course sometimes there is no way around putting it in 2nd around a corner or something,
AKIRA
12-28-2006, 07:33 PM
I would recommend just living with it. Might as well drive it till it breaks.
I would like to point out that our transmissions 2nd and 3rd gear are not designed to be used unless during hard acceleration. If you read your manual it actually states this.
I only use 2nd and 3rd when I'm on it. 1st-4th-5/6th all the time. Of course sometimes there is no way around putting it in 2nd around a corner or something,
And its ridiculous. Why make a MANUAL TRANSMISSION when it is built to use like an auto? I dont know if they half-assed the 2nd and 3rd gears because of gas saving lovers, but if they did, what a couple of bums....
third_shift|studios
12-28-2006, 10:29 PM
gnomee; site your source? that sounds retarded. Skip shift is only there for emissions purposes.
The t56 in 98-2000 models is made with weaker, carbon synchronizers. The 01+ models have brass synchs. [I found this out from tremec, the transmission manufacturer]. it should cost roughly 1500 to rebuild with better shift forks and brass synchs.
Also, the 98-00's have shitty clutch/hydrolic systems. I bet your slave cylinder isn't doing it's job therefor your getting the grind. I suggest replacing the slave when you get a new clutch.
yes, if you granny-shift 3rd @ such low rpms, yer gonna grind, the mating and timing is all out of wack and the synch's just can't do their job; hence the reason it feels more solid at 2k and above. You might benefit from a fluid flush and fill in your tranny.
Good luck.
ThatOneGuy001
12-28-2006, 11:10 PM
Thanks for the tips.
hutch1999
12-29-2006, 10:56 AM
gnomee; site your source? that sounds retarded. Skip shift is only there for emissions purposes.
The t56 in 98-2000 models is made with weaker, carbon synchronizers. The 01+ models have brass synchs. [I found this out from tremec, the transmission manufacturer]. it should cost roughly 1500 to rebuild with better shift forks and brass synchs.
Also, the 98-00's have shitty clutch/hydrolic systems. I bet your slave cylinder isn't doing it's job therefor your getting the grind. I suggest replacing the slave when you get a new clutch.
yes, if you granny-shift 3rd @ such low rpms, yer gonna grind, the mating and timing is all out of wack and the synch's just can't do their job; hence the reason it feels more solid at 2k and above. You might benefit from a fluid flush and fill in your tranny.
Good luck.
thnx for the info. My slave cylinder was replaced by the car dealership right before i bought the car 5,000 miles ago because someone had test drove it and messed it up so i think it should be fine for awhile. I dont drop the clutch much at all. The only time i would cause any real wear would be the last two races ive been in and thats it. I dont do any burnouts anymore I got that out of my system with 93 A4 formula.
third_shift|studios
12-29-2006, 11:23 AM
then i suggest not granny shifting anymore, melba toast :lol:
hutch1999
12-29-2006, 04:36 PM
Ive been having to granny shift for the last couple of weeks because apperently im public enemy #1 in my lil town. Somethin about how i drive :whistle: What makes me mad is the fact that the cops are NOT catching me its this stupid crime stoppers thing in my town where people call the cops to "stop crime" and get "rewards". Im in the city's police computer several times for ''noise'' complaints and "speeding" complaints even tho Ive NEVER been pulled over by a city police officer. How shitty is my town to pay people to do the cops jobs? AND I dont speed in the downtown area, its on the outskirts of the city limits that connect to the county roads which have a speed limit of 55. Small towns are a joke, we need some real crime I guess.
INMY01TA
12-29-2006, 05:42 PM
Downshifting or upshifting?
hutch1999
12-29-2006, 05:42 PM
upshifting
ThatOneGuy001
12-30-2006, 05:46 PM
Yeah, upshifting.
God fifth is being such a bitch.
gnomee
12-30-2006, 06:41 PM
gnomee; site your source? that sounds retarded. Skip shift is only there for emissions purposes.
The t56 in 98-2000 models is made with weaker, carbon synchronizers. The 01+ models have brass synchs. [I found this out from tremec, the transmission manufacturer]. it should cost roughly 1500 to rebuild with better shift forks and brass synchs.
I did site my source. The Manual. Page 2-38 to be exact. I also said nothing about skip shift.
There is no reason to bash me and call my statment retarded. Especially when you are wrong. You could have maturely disagreed.
Your statement about the weaker carbon synchros is exactly what not designed for means. They made them weaker and only intended you to use them when racing and to stick with 1st - 4th for daily driving since they engineered it around having skip shift make you shift that way.
I agree that they should have spent the extra change and made it a beefy tranny.
third_shift|studios
12-31-2006, 03:11 AM
i think they tried to save a buck and put in shotty materials; like sarge says "bean counters" make the decisions. i didn't see that you had sited it. sorry man. good arguement in all honesty :sorry:
autotrix
12-31-2006, 03:56 PM
In the end......he will drive it till it breaks.....
:seesaw:
crazyTAlover
01-01-2007, 10:58 PM
I too have the same problem with my 98 T/A M6. Low RPM shifts in to 3rd are rough. I had the fluid changed and it seemed to help a bit but not much. I was surprised to find that the fluid is automatic trans fluid and not gear oil:nono:
BlueByU-SS
01-01-2007, 11:39 PM
hmm mine did that.. my tranny was all sorts of f****D up though... my guess would be synchro's next id say bent shift fork.. third gear is the week link in t56's.. but i have heard and seen pro 5.0 shifters give t56's problems by not havin the stops adjusted correctly.. hope perhaps some of this helps
AKIRA
01-02-2007, 06:44 PM
hmm mine did that.. my tranny was all sorts of f****D up though... my guess would be synchro's next id say bent shift fork.. third gear is the week link in t56's.. but i have heard and seen pro 5.0 shifters give t56's problems by not havin the stops adjusted correctly.. hope perhaps some of this helps
Ah ah ahhhh. Easy there. Pro 5.0s arent the only shifters out there with adjusted stops.
BlueByU-SS
01-05-2007, 12:31 PM
oh ok your right.. im prejudice of my hurst with the short stick you caught me:giveup:
WS.SICK
01-06-2007, 01:29 AM
you could also try rev matching when you down shift, and double clutching when you up shift... when your on it and you up shift it grinds right, when it does the clutch in blip the throttle and select the gear again... if it doesn't like that, no racing -
Fairfield yes fairfield, there's a few bad cars around there once in a while
hutch1999
01-06-2007, 01:55 PM
Fairfield was the former home of the Wayne County Speed. We were the NHRA world funny car champs back in '90-'91. Tons and tons of super fast street cars came out of the speed shop in the 70s and 80s. Nowadays the speed shop is no more. I wish it was still around.
SpeedAddict38
01-10-2007, 08:22 PM
When I shift at lower RPMs, right around 1500 to 1900 RPMs, i grind going into 3rd gear and only 3rd gear. I dont really know why because when I shift at higher RPMs it shifts just fine with no grinding. Right now for a quick fix I just make sure to shift over 2000 RPM into 3rd. Any info on what this could be would be helpful. I do have a Pro 5.0 shifter if that makes a difference.
if u cant findum ...grindum
AKIRA
01-10-2007, 09:27 PM
you could also try rev matching when you down shift, and double clutching when you up shift... when your on it and you up shift it grinds right, when it does the clutch in blip the throttle and select the gear again... if it doesn't like that, no racing -
Fairfield yes fairfield, there's a few bad cars around there once in a while
What is double clutching anyway and what purpose does it have?
Wesman
01-10-2007, 10:01 PM
What is double clutching anyway and what purpose does it have?
Double clutching is a technique used on older (like 1940's) vehicles to engage gears without grinding them. These older transmissions were not synchronized, meaning that the user had to manually match the speeds of the engine and the input shaft of the transmission to engage the desired gear.
This is done like so: Accelerate through 1st gear, clutch in, pull gear lever into neutral, let clutch out, match revs to what they will be when next gear is engaged, put clutch back in, engage next gear, make sure RPM's are at the right speed, engage clutch.
Double clutching a modern synchronized manual transmission is pointless, being that the whole purpose of synchros is to eliminate the need to double clutch. However, if the synchros are going bad or completely shot, the car can still be driven without an issue by double clutching the transmission.
samuelsamuel
01-12-2007, 04:27 AM
Could not have said it better myself
ThatOneGuy001
02-28-2007, 07:43 PM
Mine only does it SOMETIME, mostly in the mornings when its cold.
sirenformula350
02-28-2007, 11:45 PM
I've got the same problem in 3rd and 5th. I grit my teeth every time I grind :rant:. Never does it in the summer though. So does anyone know if temperature has a big influence on this, or is it just me?
Oldladykiller
03-01-2007, 12:49 AM
Ive been having to granny shift for the last couple of weeks because apperently im public enemy #1 in my lil town. Somethin about how i drive :whistle: What makes me mad is the fact that the cops are NOT catching me its this stupid crime stoppers thing in my town where people call the cops to "stop crime" and get "rewards". Im in the city's police computer several times for ''noise'' complaints and "speeding" complaints even tho Ive NEVER been pulled over by a city police officer. How shitty is my town to pay people to do the cops jobs? AND I dont speed in the downtown area, its on the outskirts of the city limits that connect to the county roads which have a speed limit of 55. Small towns are a joke, we need some real crime I guess.
lmao sorry man but i found it very funny. but i do feel sorry for u, free country my ass eh? if im not hurting anyone then fuck off. people suck for calling the cops on u for noise
7camaro7
03-01-2007, 06:35 AM
you guys with the problem, how many miles you got?
Wesman
03-01-2007, 08:32 AM
I've got the same problem in 3rd and 5th. I grit my teeth every time I grind :rant:. Never does it in the summer though. So does anyone know if temperature has a big influence on this, or is it just me?
Tempurature has a direct affect on the transmission from what I've found as well. If its really cold out, any attempt at fast shifting will usually net me a grind going into 3rd and 4th.
When I was at the track last fall though, and it was almost 90 degrees out, I ran 1st - 4th gear as fast as I could on my first pass and I didn't even get one little grind. So I'd say that temps definitely affect the performance of the transmission.
sirenformula350
03-01-2007, 08:59 AM
you guys with the problem, how many miles you got?
about 78,000. For me it started around 65,000 but its still not really that bad just an occasional thing. Still enough to be irritating though
AKIRA
03-01-2007, 09:56 AM
My 1st gear grinds. However, I dont have to shift fast into 1st often.
FORD RECOVERY EXPERT
03-01-2007, 06:28 PM
mine started small, now within 2000 miles, i cant use 3rd 4th or rev...:dunno:
rbrtlux
03-01-2007, 07:10 PM
mine started doing about a year after i got it in 2004. it was just every now and then but most of the time i would just be over about 2000 RPM before i shifted and i never got the grind anymore. but i'm in the process of rebuilding my motor now.( it had about 150,000 miles on it ) since i got the tranny out, i might as well fix the syncros.
taking shit apart and putting it back together has always been easy for me, i was wandering if anyone knew where to get a book on the T56 tranny that shows a step by step of how to rebuild it? i'd like to try and do it myself, cause i have another tranny coming to me from a friend of mine so if i screw up, at least i have a back up till i get a tranny shop to fix my screw up.
FORD RECOVERY EXPERT
03-01-2007, 07:27 PM
This Is The Second One To Break This Way On Me
Hot Black Trans-Am
03-01-2007, 07:38 PM
The cold does really have an impact on the tranny. If it's cold out I'll grind a bit on every shift until it gets warmed up a little.
FORD RECOVERY EXPERT
03-01-2007, 07:44 PM
Hmm. Mine Just Always Did It, Cold Or Hot.
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