Automatic transmission hesitation to downshift - Canadian Mustang Owners Club - Ford Mustang Forums

Mustang Drivetrain Ford Mustang clutches, transmissions, flywheels, shocks & more. Discuss how to repair these items and which performance parts to add to your Mustang.

Automatic transmission hesitation to downshift

Old 09-01-2015, 09:10 PM
  #1  
CMOC Rookie
Thread Starter
 
Join Date: Dec 2012
Location: Fitzroy Harbour, Ontario
Posts: 26
Automatic transmission hesitation to downshift

I have a 2010 Mustang GT with an automatic transmission. Over the past year, it now hesitates when I drop the throttle. I nail the pedal and it does nothing for about 3 seconds, then Slam, the rpms fly across the gauge and then the car launches as I intended.

Is anyone aware if there was a Technical Service Bulletin on this? Maybe a software update was issued at some point?
Minbari is offline  
Old 09-01-2015, 10:51 PM
  #2  
CMOC Postaholic
 
herbz's Avatar
 
Join Date: Nov 2008
Location: Cochrane, Alberta
Posts: 1,305
Definitely not right.

A tranny reflash isn't a bad starting point.

A little split second hesitation is ok but what you're describing is a very hard gear change.
herbz is offline  
Old 09-01-2015, 10:52 PM
  #3  
Silly Milly
 
def67's Avatar
 
Join Date: May 2010
Location: Taber Alberta
Posts: 2,950
Hey, that really sucks! sounds to me like its pooched. Hopefully someone else chimes in.
def67 is offline  
Old 09-01-2015, 11:25 PM
  #4  
Moderator
 
ChadStang's Avatar
 
Join Date: Aug 2005
Location: Slave Lake, AB
Posts: 6,728
If it does nothing at all it doesn't sound like a transmission issue. Maybe a throttle body issue or something along those lines but I would take it to a shop.
ChadStang is offline  
Old 09-02-2015, 12:12 PM
  #5  
CMOC Rookie
Thread Starter
 
Join Date: Dec 2012
Location: Fitzroy Harbour, Ontario
Posts: 26
Thanks guys. The throttle body theory is one I hadn't considered. I will look into having the tranny programming re-flashed. It all comes down to $$ of course.
Minbari is offline  
Old 11-22-2017, 01:30 PM
  #6  
CMOC Newbie
 
Join Date: Nov 2017
Location: Kitchener, ON.
Posts: 2
Automatic downshift in sport mode

I have a 2013 mustang GT with the 6 speed automatic. When I am in sport mode and shifting manually, if I come to a stop without downshifting manually, should the transmission reset itself to first gear on its own in this mode when the car is stopped? I have other vehicles that do, but my Mustang does not. Is there possibly something wrong?
Ac075627 is offline  
Old 11-22-2017, 11:00 PM
  #7  
Moderator
 
ChadStang's Avatar
 
Join Date: Aug 2005
Location: Slave Lake, AB
Posts: 6,728
Originally Posted by Ac075627 View Post
I have a 2013 mustang GT with the 6 speed automatic. When I am in sport mode and shifting manually, if I come to a stop without downshifting manually, should the transmission reset itself to first gear on its own in this mode when the car is stopped? I have other vehicles that do, but my Mustang does not. Is there possibly something wrong?
as far as I know that is normal. They wanted to be sure that the driver had full control and could pick the gear they wanted to be in.
ChadStang is offline  
Old 11-22-2017, 11:21 PM
  #8  
CMOC Newbie
 
Join Date: Nov 2017
Location: Kitchener, ON.
Posts: 2
Thank you Chadstang.
Ac075627 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rimacrae
Mustang Drivetrain
12
12-11-2011 10:37 PM
AHHHSUM
5.0L
10
01-31-2011 02:15 PM
red87gt
5.0L
22
01-17-2011 03:11 PM
2v_takeover
4.6L 2v
1
05-14-2009 08:22 AM
MirekMustang
Mustang Parts for sale
3
02-16-2009 11:51 PM


Quick Reply: Automatic transmission hesitation to downshift


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.