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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Grind going first to second when cold

  • Thread starter Thread starter Letchcore
  • Start date Start date Mar 8, 2012
L

Letchcore

New Member
May 17, 2011
14
1
3
Nashville
Mar 8, 2012
#1
  • Mar 8, 2012
  • #1
I have recently developed a grind going from first to second gear in my 02 GT. It only does it the first 3 or 4 times I shift from first to second. It seems after its warmed up the problem goes away. No other gears have problems and down shifting is perfect. I would think if a the syncros are bad i couldent downshift with no problems at all? No gears pops out. I am not sure if the clutch has ever been replaced. I do feel like I have to let the clutch out far to get engagement. Also I do hear a squeking sound when I press the clutch.

Where should I start in diagnosing the problem and fixing it? Thanks
 

ricky05uphs

Member
Feb 29, 2012
40
0
6
North Carolina
Mar 8, 2012
#2
  • Mar 8, 2012
  • #2
mine does the samething...I just baby it untill it warms up. my clutch is new. im just going to wait till something breaks
 

apats77

Member
May 2, 2011
178
1
18
Watertown, MA
Mar 8, 2012
#3
  • Mar 8, 2012
  • #3
Same here on my 98, occasionally does it 4th - 5th only happens once then its fine
 

5speed

Member
Aug 6, 2011
23
0
11
PA
Mar 28, 2012
#4
  • Mar 28, 2012
  • #4
Known thing with the 3650 transmission in the late 01-04 stangs. Just google "3650 2nd gear grind" and you will find tons of results, including people trying different fluids to fix the issue. I think the only real way to fix it is through the Ford TSB for replacing the synchros. My pro-rebuilt 3650 that I got had this done already and the issue is gone, but my old 3650 did this every day it was cold until it warmed up. Just baby it for now, or just go from 1st-3rd (not hard in a v8) until she warms up.
 

03_TrueBlue_GT

Active Member
May 5, 2010
810
41
29
Houston, Tx
Mar 28, 2012
#5
  • Mar 28, 2012
  • #5
Hrmm I havent ever had that issue... Perhaps getting the fluid changed out might help?
 

5speed

Member
Aug 6, 2011
23
0
11
PA
Mar 28, 2012
#6
  • Mar 28, 2012
  • #6
it only happened for me on my old 3650 when the weather was below 40 F and the trans. hadn't warmed up yet. Also many people claim that certain fluids stop this from happening, but this is something you may have to do trial and error for to find yourself.
 

Mossberg

Active Member
Jul 21, 2003
0
1
36
ATL, Shawty
Apr 11, 2012
#7
  • Apr 11, 2012
  • #7
I decided to move to Atlanta some years back because of this issue.


 

trinity_gt

10 Year Member
Jan 31, 2003
3,125
81
99
Canada
Apr 11, 2012
#8
  • Apr 11, 2012
  • #8
http://www.stangnet.com/mustang-forums/threads/official-tremec-3650-issues-thread.328655/
 
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