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Old 09-10-2011, 09:59 PM   #1
locodriver
 
Join Date: Sep 2011
Vehicle: 1999 Mustang Cobra
Location: Colorado
Posts: 8
Default Speedo to Slow

Hello all
I have a 1999 Cobra that has custom wheels and Goodrich 18 inch tires.
The speedo is 13/14 mph SLOW..
Other than the dealer is there any other way to correct the error?
Does this slow speedo effect other functions of the cars computer?
Thanks for the help .
I have only owned her 1 week and 1 trip averaged only 18 mpg with no frogging her ,car only has 54,000 miles on her and a coolair filter stock gearing.
Thanks for any help.
Locodriver
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Old 09-10-2011, 11:33 PM   #2
brotus

 
Join Date: Sep 2011
Vehicle: 2001 Cobra
Location: MI
Posts: 14
Default

I also just bought a 01 Cobra and have a similar issue because of my 4.10 gears. Here this might help you out. http://www.americanmuscle.com/ford-s...tool-9410.html
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Old 09-11-2011, 11:10 AM   #3
Blackvenom01
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Vehicle: 2004 TR Cobra
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a tune will help you and give you more power and a more healthy car...dealer wont do nothin
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Old 09-11-2011, 02:19 PM   #4
locodriver
 
Join Date: Sep 2011
Vehicle: 1999 Mustang Cobra
Location: Colorado
Posts: 8
Default slow speedo

Thanks for the reply.
Do you guys think I should buy a hand held tuner like hyperjet?
Reading that I can fix the speedo issue and tune ( flash the computer)
Is this the right thing to do ?
Thanks again for the help
Locodriver
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Old 09-11-2011, 03:55 PM   #5
redneck racer
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Vehicle: 03 cobra, 83 gt
Location: South Carolina
Posts: 345
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Just spend the extra cash on a good tuner instead of that recalibration junk. SCT/diablos are probably the most popular models, ive never even heard of hyperjet.
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Old 09-11-2011, 09:07 PM   #6
locodriver
 
Join Date: Sep 2011
Vehicle: 1999 Mustang Cobra
Location: Colorado
Posts: 8
Default slow speedo

Sorry about that .
I ment to say hypertech.
What do you guys recommend?
Thanks again
loco
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Old 09-13-2011, 01:10 PM   #7
locodriver
 
Join Date: Sep 2011
Vehicle: 1999 Mustang Cobra
Location: Colorado
Posts: 8
Default SPEEDO OK NOW

OK
Got the Cobra tuned and the Speedo fixed all at once.
Great people at the Car Dr. They set her up did the tune and fixed the speedo for $65.00 .
Wow now I can buy some more gas.
Thanks to all that helped on my problem
This is a great site.
Locodriver.
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Old 09-13-2011, 02:32 PM   #8
redneck racer
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Vehicle: 03 cobra, 83 gt
Location: South Carolina
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Not bad, $65 is much better than taking the hit on a tuner, especially if you dont plan to heavily mod it you wont need the handheld tuner.
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Old 09-17-2011, 02:46 PM   #9
rjwz28
 
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You got a custom performance tune for $65?
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Old 09-19-2011, 09:22 AM   #10
locodriver
 
Join Date: Sep 2011
Vehicle: 1999 Mustang Cobra
Location: Colorado
Posts: 8
Default

Yes I did,, Checked many places and estimates first. I guess Sales are down at Ford and they are pushing service they wanted $ 140.00 just to recalibrate the speedo.
Took it to the Car Dr. and they tuned because I had installed cold air system and a few other mods they adjusted the speedo to bring it up right, took them two tries on speedo and a little over an hour for all. Glad there are still some honest people out there..check arround before you try.

Locodriver
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Old 09-19-2011, 09:22 AM
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