2nd to 3rd grinding

IronStomach · January 2nd, 2008, 10:25 AM

Two things:

1) I picked up my 08 Alloy Mustang GT on New Year's Eve. Been too busy driving like a teen with a new license... all through a 6" dump of a snowstorm. hehe

2) It's got a 5spd and occasionally when I shift normally from 2nd to 3rd when the lever is going into 3rd with the clutch all the way on the floor it'll grind. I've noticed that when I shift, if I pause momentarily between gears it'll go into 3rd without a problem.

I just started driving stick 4 years ago, but have about 60k miles across two cars in experience - is this a techinique issue or mechanical with the transmission? Will getting an aftermarket short throw fix this or is it something that should work perfectly fine? I guess I should have driven some of the other Mustangs on the lot....

Car's got 150 miles on it and I put 130 of those on it.

Thanks and hope everyone's having a great year!

07 STROKER · January 2nd, 2008, 11:18 AM

How often is ocasonally ?

IronStomach · January 2nd, 2008, 11:44 AM

Originally Posted by 07 procharger

How often is ocasonally ?

I dunno the ratios yet, I've been actively trying to avoid it by pausing between gears. Plus I've only had the car a few days.

I heard it once when I test drove it for four hours a month ago, didn't hear it at all the day I bought it, and I heard it maybe 5 times yesterday and none today.

I tried searching the forums and it seemed people were having problems with the shifter completely missing shifts which isn't the problem I'm having. Was just wondering if it was common with new cars? Or common at all? Or if I'm horribly cursed and will be visited by three car demons during the night to show me the error of my ways?

KenDogg · January 2nd, 2008, 11:53 AM

i get the same grind sometimes going into 3rd. it's not a huge or persistent grind and i can more feel it then hear it but it doesnt feel normal

07 STROKER · January 2nd, 2008, 11:58 AM

well I dont think any grind is normal....Check your fluid level in your gear box??? Other than that maybee its a bad syncro?

Luis_GT · January 2nd, 2008, 01:25 PM

Mine has only grinded second

I took it to the dealership and they didn't find anything wrong, yet I can still get it to lock up while idle.

psycho bob · January 2nd, 2008, 01:35 PM

i never had the problem when i had the stock shifter nor now that i have the tri axe

Vabeachmustang · January 2nd, 2008, 02:20 PM

I have an occasional grind going into 3rd as well. Few times a week.

IronStomach · January 2nd, 2008, 04:50 PM

Well now I feel like an idiot, I swear I searched the forums for previous threads about this - sorry if I wasted anyone's time reposting an old discussion topic.

And thanks for confirming that the problem isn't me either. I'll check the gearbox fluid later this evening.

After another hundred miles today I think I need to learn more about synro gears specifically and manual tranmissions in general (automatic transmissions will always work solely on indescribable magical phenomenon and the pressurized remnants of stars long ago pulvarized by comets).

I tend to keep a really loose grip on the shifter - and when I pause between gears going from 2nd to 3rd I actually let go for about a half second. The stick springs to neutral and then I push it up to 3rd. When I do that it works 100% of the time with no abnormal noise, vibration or harshness, et cetera. When I push the stick in one motion from 2nd to 3rd it has grinded every time. I really don't want to try to work it out as it sounds bad. Exactly like it did on my old car when I went into reverse (which did not have a syncro) while the car was still going backwards even though the clutch was floorboarded. That is leading me to believe it's a syncro issue on 3rd. But I don't know enough about syncros - is there just one for the entire transmission or is there one for each gear syncroed?

Another factor that was brought up in that earlier thread was cold weather. Yesterday and today have been between 0 and 20 degrees fahrenheit. We'll see how it works in the 100 degree+ summer.

07 STROKER · January 2nd, 2008, 04:54 PM

ya but after rowing thru the gears and driving the car for a few minutes that fluid should be at operating temp....It is starting to sound like a bad syncro...good luck!!

GOTTORQ · January 5th, 2008, 01:27 PM

i would say its the syncros on third gear, i would take it back to ford and show them. and tell them its not your driving

LSR · January 5th, 2008, 04:37 PM

For those having gear grind problems, it comes from the clutch not engaging and disengaging. This is a known problem and really heavy with the GT500's right now. The grind is a known issue and has to due with the clutch dragging due to no lubricant applied to the clutch splines during assembly.

Here is the service tip that is used for replacing the clutch under warranty for the GT500's. My tranny & clutch was replaced due to the issue at 4800+ miles.

Ford Service Tip: "19802 2007-2008 Mustang Shelby GT500 Clutch Service Tip"

The grind is a known issue and has to due with the clutch dragging. The clutch assembly needs to be replaced (part# 7R3Z07B546-B ), and Motorcraft PTFE lubricant (Part# XG8 or D2AZ-19590-A) needs to be applied to the hub splines.

With some reseach, I am sure there is probably a service tip for the Mustang GT and one could find out by contacting Ford AAI in Detroit, not the dealers.

IronStomach · January 5th, 2008, 05:46 PM

Originally Posted by LSR

For those having gear grind problems, it comes from the clutch not engaging and disengaging. This is a known problem and really heavy with the GT500's right now. The grind is a known issue and has to due with the clutch dragging due to no lubricant applied to the clutch splines during assembly.

Here is the service tip that is used for replacing the clutch under warranty for the GT500's. My tranny & clutch was replaced due to the issue at 4800+ miles.

Ford Service Tip: "19802 2007-2008 Mustang Shelby GT500 Clutch Service Tip"

The grind is a known issue and has to due with the clutch dragging. The clutch assembly needs to be replaced (part# 7R3Z07B546-B ), and Motorcraft PTFE lubricant (Part# XG8 or D2AZ-19590-A) needs to be applied to the hub splines.

With some reseach, I am sure there is probably a service tip for the Mustang GT and one could find out by contacting Ford AAI in Detroit, not the dealers.

Wow, thanks for the heads up! I'll try to do some digging around on that. I'm guessing Ford's going to warranty it when it fails, in the meantime should I begin a documentation on this by bringing it into the dealer I bought it at and force them to acknowledge the grinding even if they don't do anything to it right now?

I wonder if that's the holdup that's delaying January Bullitt production....

rsfdiver · January 8th, 2008, 06:11 AM

I have 2800 miles on my '07 GT500 Should I or a qualified mechanic lubricate the clutch spines now?

LSR · January 9th, 2008, 09:57 AM

Originally Posted by rsfdiver

I have 2800 miles on my '07 GT500 Should I or a qualified mechanic lubricate the clutch spines now?

If you are experiencing gear gring going into 1st or reverse then you do have a problem. PM me if you need direction.

rsfdiver · January 9th, 2008, 05:11 PM

No grinding problems so far, except for a busted racing stripe above the faux gas cap everything is really really fun. Started out as an area that came unstuck a day after I bought it and is now broken due to cold weather. I will take it to the dealer and/or the local ford racing speed shop and make them fix it. I think it was originally applied to tight.

D3ViOUS · January 9th, 2008, 05:22 PM

my friends car did that everytime he threw it into 2nd or 3rd it would grind. We found out it was his tranny idk with you cause its a new car if anything get it checked out to make sure

rsfdiver · January 9th, 2008, 05:24 PM

Reverse only grinds when I am doing about 90

LSR · January 9th, 2008, 08:45 PM

Originally Posted by rsfdiver

Reverse only grinds when I am doing about 90

Yeah right

06RedfireGT · January 9th, 2008, 09:00 PM

Originally Posted by D3ViOUS

my friends car did that everytime he threw it into 2nd or 3rd it would grind. We found out it was his tranny idk with you cause its a new car if anything get it checked out to make sure

January 2nd, 2008, 10:25 AM	#1
IronStomach Hardcore Enthusiast 2008 Mustang GT Join Date: Nov 2007 Location: West [of] Chicago Posts: 2,471 iTrader: 1 reviews	2nd to 3rd grinding Two things: 1) I picked up my 08 Alloy Mustang GT on New Year's Eve. Been too busy driving like a teen with a new license... all through a 6" dump of a snowstorm. hehe 2) It's got a 5spd and occasionally when I shift normally from 2nd to 3rd when the lever is going into 3rd with the clutch all the way on the floor it'll grind. I've noticed that when I shift, if I pause momentarily between gears it'll go into 3rd without a problem. I just started driving stick 4 years ago, but have about 60k miles across two cars in experience - is this a techinique issue or mechanical with the transmission? Will getting an aftermarket short throw fix this or is it something that should work perfectly fine? I guess I should have driven some of the other Mustangs on the lot.... Car's got 150 miles on it and I put 130 of those on it. Thanks and hope everyone's having a great year! __________________ Experience is what you get when you didn't get what you wanted.

January 2nd, 2008, 11:18 AM	#2
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	How often is ocasonally ? __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

January 2nd, 2008, 11:58 AM	#5
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	well I dont think any grind is normal....Check your fluid level in your gear box??? Other than that maybee its a bad syncro? __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

January 2nd, 2008, 01:35 PM	#7
psycho bob I Post Entirely Way Too Much 07 GT/86 LX 5.0 12.86@104 Join Date: Aug 2006 Location: colorado springs, co/ Tulsa, OK Posts: 7,528 iTrader: 0 reviews	i never had the problem when i had the stock shifter nor now that i have the tri axe __________________ heads, cams, and eforce using up all the air around

January 2nd, 2008, 02:20 PM	#8
Vabeachmustang Enthusiast 2005 Mustang GT Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 535 iTrader: 0 reviews	I have an occasional grind going into 3rd as well. Few times a week. __________________ 2005 Mustang GT \| Procharger P-1SC-1 @12psi 501 rwhp, 445 torque Click here for my latest Dyno Pull MILITARY CREW HMC(SW/AW)

January 2nd, 2008, 11:53 AM	#4
KenDogg Regular 2007 Mustang GT Join Date: Aug 2007 Posts: 379 iTrader: 0 reviews	i get the same grind sometimes going into 3rd. it's not a huge or persistent grind and i can more feel it then hear it but it doesnt feel normal

January 2nd, 2008, 01:25 PM	#6
Luis_GT Banned 2002 BMW 530i don't know and don't care Join Date: Mar 2007 Posts: 5,191 iTrader: 0 reviews	Mine has only grinded second I took it to the dealership and they didn't find anything wrong, yet I can still get it to lock up while idle.

January 2nd, 2008, 04:50 PM	#9
IronStomach Hardcore Enthusiast 2008 Mustang GT Join Date: Nov 2007 Location: West [of] Chicago Posts: 2,471 iTrader: 1 reviews	Well now I feel like an idiot, I swear I searched the forums for previous threads about this - sorry if I wasted anyone's time reposting an old discussion topic. And thanks for confirming that the problem isn't me either. I'll check the gearbox fluid later this evening. After another hundred miles today I think I need to learn more about synro gears specifically and manual tranmissions in general (automatic transmissions will always work solely on indescribable magical phenomenon and the pressurized remnants of stars long ago pulvarized by comets). I tend to keep a really loose grip on the shifter - and when I pause between gears going from 2nd to 3rd I actually let go for about a half second. The stick springs to neutral and then I push it up to 3rd. When I do that it works 100% of the time with no abnormal noise, vibration or harshness, et cetera. When I push the stick in one motion from 2nd to 3rd it has grinded every time. I really don't want to try to work it out as it sounds bad. Exactly like it did on my old car when I went into reverse (which did not have a syncro) while the car was still going backwards even though the clutch was floorboarded. That is leading me to believe it's a syncro issue on 3rd. But I don't know enough about syncros - is there just one for the entire transmission or is there one for each gear syncroed? Another factor that was brought up in that earlier thread was cold weather. Yesterday and today have been between 0 and 20 degrees fahrenheit. We'll see how it works in the 100 degree+ summer. __________________ Experience is what you get when you didn't get what you wanted.

January 2nd, 2008, 04:54 PM	#10
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	ya but after rowing thru the gears and driving the car for a few minutes that fluid should be at operating temp....It is starting to sound like a bad syncro...good luck!! __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

January 5th, 2008, 01:27 PM	#11
GOTTORQ Enthusiast 2008 Mustang GT/CS BLK 13.7@ 103mph Join Date: Jan 2008 Location: Connecticut Posts: 601 iTrader: 0 reviews	i would say its the syncros on third gear, i would take it back to ford and show them. and tell them its not your driving __________________ Stage 2 Mutha Thumprs,FRPP 4.10s, Pypes O/R X pipe, Violator axleback, JLT CAI, GT500 spoiler, 18x9/18x10 (255/285) H&R lowering springs Nitrous is like a hot girl with an STD... you wanna hit it, but your afraid of the consequences

January 5th, 2008, 04:37 PM	#12
LSR Newbie 2007 Shelby GT500 Join Date: Jan 2008 Location: Shiloh,IL Posts: 19 iTrader: 0 reviews	For those having gear grind problems, it comes from the clutch not engaging and disengaging. This is a known problem and really heavy with the GT500's right now. The grind is a known issue and has to due with the clutch dragging due to no lubricant applied to the clutch splines during assembly. Here is the service tip that is used for replacing the clutch under warranty for the GT500's. My tranny & clutch was replaced due to the issue at 4800+ miles. Ford Service Tip: "19802 2007-2008 Mustang Shelby GT500 Clutch Service Tip" The grind is a known issue and has to due with the clutch dragging. The clutch assembly needs to be replaced (part# 7R3Z07B546-B ), and Motorcraft PTFE lubricant (Part# XG8 or D2AZ-19590-A) needs to be applied to the hub splines. With some reseach, I am sure there is probably a service tip for the Mustang GT and one could find out by contacting Ford AAI in Detroit, not the dealers. __________________ 2007 Red w White Shelby GT500 Took delivery 10-25-06 at MSRP Mods: 2.6 pulley, JLT CAI, NGK TR6 plugs, Ford Racing axlebacks, BMR LCA's, BMR driveshaft loop, & tune by Jon Lund My car domain: http://www.gotstang.com/profile.php?LSR#jump

January 8th, 2008, 06:11 AM	#14
rsfdiver Newbie 2007 GT500, 2007 V6 Conv. Join Date: Nov 2007 Location: Louisiana Posts: 29 iTrader: 0 reviews	I have 2800 miles on my '07 GT500 Should I or a qualified mechanic lubricate the clutch spines now?

January 9th, 2008, 05:11 PM	#16
rsfdiver Newbie 2007 GT500, 2007 V6 Conv. Join Date: Nov 2007 Location: Louisiana Posts: 29 iTrader: 0 reviews	No grinding problems so far, except for a busted racing stripe above the faux gas cap everything is really really fun. Started out as an area that came unstuck a day after I bought it and is now broken due to cold weather. I will take it to the dealer and/or the local ford racing speed shop and make them fix it. I think it was originally applied to tight.

January 9th, 2008, 05:22 PM	#17
D3ViOUS Look Ma! My First Post! 2005 mustang gt 13.5 Join Date: Jan 2008 Location: Yonkers NY Posts: 1 iTrader: 0 reviews	my friends car did that everytime he threw it into 2nd or 3rd it would grind. We found out it was his tranny idk with you cause its a new car if anything get it checked out to make sure

January 9th, 2008, 05:24 PM	#18
rsfdiver Newbie 2007 GT500, 2007 V6 Conv. Join Date: Nov 2007 Location: Louisiana Posts: 29 iTrader: 0 reviews	Reverse only grinds when I am doing about 90

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