Go Back   MustangForums.com > Ford Mustang Tech > V6 (1994-2004) Mustangs
Sign in using an external account
Register Forgot Password?
Search


V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters
Sponsored by Optima Batteries


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 01-14-2012, 03:44 PM   #1
Bokrasawski
 
Join Date: Jan 2009
Vehicle: 1997 v6 3.8 convertible mustang
Location: Florida
Posts: 3
Default 3.8 auto to manual swap, almost done, just need a little help

Hey there, so this is my issue. I have a 97 3.8 (recently replaced) with a t5 (also just installed)... My problem is that when I drive, my speedometer is ridiculously far off from what I'm going, so far off that when I hit 36, the speedometer reads 115 and the governor kicks in I'm not sure how to approach this problem. also I am getting no temperature readout, the radiator fan isn't coming on, and while driving back from the parts yard today, the horn went off and wouldn't stop. what a nightmare. any help would be greatly appreciated
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
Bokrasawski is offline   Reply With Quote
Old 01-14-2012, 04:21 PM   #2
3.0Taurass
3rd Gear Member
 
3.0Taurass's Avatar
 
Join Date: Sep 2007
Vehicle: 2009 Focus Coupe
Location: MN
Posts: 852
Default

New speedo gear in the trans?
__________________
3.0Taurass is online now   Reply With Quote
Old 01-14-2012, 11:28 PM   #3
stangant
5th Gear Member
 
stangant's Avatar
 
Join Date: Jan 2007
Vehicle: 2000, ford, mustang
Location: Titusville, Fl
Posts: 2,697
Anthony Litterilla stangant232
Default

did you replace the ECU?
__________________

Stangant's Car Domain Please Click Now


Money doesn't make me happy, its all the car parts that the money buys that does!
stangant is offline   Reply With Quote
Old 01-15-2012, 10:21 PM   #4
Bokrasawski
 
Join Date: Jan 2009
Vehicle: 1997 v6 3.8 convertible mustang
Location: Florida
Posts: 3
Default

I didn't, I found the speedo sensor on the trans, so I disconnected it and am able to drive as I please, but no speed readout anymore, obviously. I'm trying to figure out which part exactly I need, I may just remove the sensor and bring it straight to a parts store and ask them to match it. I replaced the temperature gauge and still no temp readout, So I put the fan on a switch until I can figure out the problem. should I replace the ECU??
Bokrasawski is offline   Reply With Quote
Old 01-15-2012, 11:02 PM   #5
stangant
5th Gear Member
 
stangant's Avatar
 
Join Date: Jan 2007
Vehicle: 2000, ford, mustang
Location: Titusville, Fl
Posts: 2,697
Anthony Litterilla stangant232
Default

I have never done the swap so not 100% sure but you could always "borrow" an ecu from someone with a manual and see if it helps. I'm sure there has to be some sort of difference between the setups as I think on auto's you can adjust with a tuner... but again not sure don't have an auto or have ever done this swap.
__________________

Stangant's Car Domain Please Click Now


Money doesn't make me happy, its all the car parts that the money buys that does!
stangant is offline   Reply With Quote
Old 01-16-2012, 09:21 AM   #6
Chromeshadow
3rd Gear Member
 
Chromeshadow's Avatar
 
Join Date: Apr 2011
Vehicle: 2012 Mustang Premium 3.7 6 Speed Manual
Location: Wisconsin
Posts: 549
Default

It's cool that you made the switch, how does performance rate now that you have the 5 speed?

If you can't figure it out, you could get a Garmin GPS with a MPH readout and forget about the speedometer.
__________________
2012 Mustang Premium 6 speed Manual
Starkey Fog Lights
5 spoke chrome American Muscle 18" x 9" wheels
Nitto 255/45ZR18 Tires
H&R Sport Front and Rear Sway Bar
J&M lower control arms
TMI adjustable tilt headrests
Gaslock LED Shift ****
Shelby door subs
Sony 200W amp

2009 Solstice GXP Turbo
2013 F150 XLT 4X4
Chromeshadow is offline   Reply With Quote
Old 01-16-2012, 09:21 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
04, 2000, 2004, 3.8 t5 speedometer broken, 38, 95, auto, automatic, conversion, manual, mustang, sn95, speed, swap, v6

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 07:38 PM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup