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Discussing How To install an Aftermarket Tach in a 96-98 in the 96-98 Forum. It is common knowledge that the stock Oil Pressure gauge and Water temp gauges are ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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#1 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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How To install an Aftermarket Tach in a 96-98
It is common knowledge that the stock Oil Pressure gauge and Water temp gauges are completley inaccurate. But who would have thought the Tachometer. It is completely in accurate. Some times i would bounce off the limiter at the track at 5500 RPM and next time around 5700 RPM. It made me concentrate, and not get as good of times, because i bounced off the limiter because of inaccurate gauges!
I bought a Autometer aftermarket 5 inch tach with Shift light. I also bought a UPR tach bracket. Both are very high quality. The instructions didnt come with it because i bought it used. But i have found a great set of instructions. Here is the link. http://www.egauges.com/pdf/AutoMeter/859e.pdf 1. Unscrew the Gauge Cluster bezel and take the headlight knob off. (i just pull really hard and it comes off everytime) 2. Take the two torx screws out of the center dash portion above the CD player, and then take the CD player and Radio out. ![]() 3 Behind the Radio, there is a torx screw back in there holding the bezel on. Take the screw out and then pull on the bezel. It will come off. 4. Now take the two torx screws out on the left of the AC controls. Not take the tach, and its bracket, and screw the screws back in. Now reassemble the center dash, and plug the radio and CD players back in. (If mounting the tach elsewhere disregard steps 2-4) Now your dash should look something like this. ![]() Next step is to wire it up. Take the actual gauge cluster out. There are 4 torx screws holding it in. You will have to unplug two plugs from it too. 5. There is a black and a white plug. ![]() Take the white plug. And find the Tan and yellow wire, in pin 8. That is the tach signal wire. That is what the tach wire will be connected to. In my case, it was a green wire. I used scotch locks to tap into the wires. ![]() ![]() ![]() Now all you need is a power source for the tach itself, a ground, and a power source for the light. You dont want the light on all the time, so you have to tap into a wire that will only give power to that when the lights are on. This wire can be found, along with the power wire for the tach, and the ground, from the rear defroster switch. ![]() In my picture there are already wires tapped into it, because i have my other gauges running off of the same wires. The Rear Defroster Switch is protected by a fuse. This is a picture of the wiring of the Rear Defroster Switch ![]() The Pink/Light blue (Pin 3) wire is the power wire to the tach. In this case, that was my red wire. So I scotch locked it in place there. The Black wire in (Pin 4) is the ground. You can scotch lock to that, but i just found a new ground under the dash. The Light blue/Red switch (Pin 5), is the power for the Lighting, so i connected my white wire to that. Now reconnect the wires to the back of the gauge cluster, and reinstall it. all the wires should be hidden behind the cluster now. So put the bezel back on. ![]() Turn on the lights, and see if the power to the light is working. ![]() If that checks out, put the car on the Start Position. If it goes to 0 and the light lights up then everything is checking out. Next fire up the car, and see if the tach works! If it does, set the shift points and have fun! Completed Pictures! ![]() ![]() Completed Movie! Make sure it worked! Compare to my Stock tach. ![]() How my car idles! ![]() A 96 GT with stock computer tune Bounces off the limiter at 5900 RPM And the stock tach was completely inaccurate. ![]() Good luck! and Ujslost thanks for the help with the wiring diagrams! Any questions just let me know!
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![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#2 |
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MM Fanatic
Join Date: Mar 2007
Location: Albertville, AL
Posts: 3,882
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Looks great! Moderators should sticky this. Alot of guys wonder how to wire up their tach in the modular cars since they dont have a distributor and alot think that they have to buy an expensive useless tach adapter. Matt has totally busted that myth.
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2000 F250 CC 7.3 Powerstroke 4x4 Lariat "I'd rather be stroked than RAMMED" "Real Trucks" dont have spark plugs |
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#3 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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I believe that a 99-04 car maybe different. I think you should check the wiring diagrams for one of those. But for a 96-98 car this will work every time!
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#4 |
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Enthusiast
Join Date: May 2007
Posts: 949
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thnx guy, im gunna use this here in the next couple weeks but i have a question, what is your exhaust setup??
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silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-pos DD soon- gt500 if all works out
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#5 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,780
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good write up Matt!
I think this applies for all Mustangs, same way i did mine |
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#6 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,780
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#7 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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Ujslost just checked, 99+ can not do it this way. they have to do a tach adapter. Here is a pic how to wire up a tach adapter.
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#8 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,780
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Well for the foxes its pretty much the same
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#9 |
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Enthusiast
2001 Cobra
Join Date: Sep 2007
Location: Sioux City, IA
Posts: 600
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same way i did mine. good write up matt. and 2 points to you for using taps and not cutting wires. good job man.
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#10 |
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Intergalactic GhostBuster
Millenium Falcon
"Lived the Dream, Created the Reality, Basking in my Awesomeness"
Join Date: Mar 2007
Location: Zip's Bubble
Posts: 9,562
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I agree......., or atleast sticky a sub forum and thoow all the writeups we got in there......
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#11 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,780
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its already stickied morons
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#12 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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Thanks guys. Its a really easy job, but i had never seen a write up on it. This should help out others.
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#13 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,780
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i was gonna do a write up for the fox but i really didnt want to
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#14 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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Right now its O/R H pipe with Flow 40 catback.
Soon, Hooker LT with with O/R X and flow 40 Catback I may go dumped on my car here soon. I dont know if i want the tail pipes to show anymore.
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#15 |
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Enthusiast
1996 mustang gt
Join Date: Jul 2006
Location: Denver co
Posts: 509
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nice job matt !!!
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sold the stang
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#16 |
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MM Fanatic
Join Date: Mar 2007
Location: Albertville, AL
Posts: 3,882
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on a fox just hook the green wire from the tach to the green -negative wire on the ignition coil.
__________________
2000 F250 CC 7.3 Powerstroke 4x4 Lariat "I'd rather be stroked than RAMMED" "Real Trucks" dont have spark plugs |
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#17 | |
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Enthusiast
Join Date: May 2007
Posts: 949
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. maybe ill get a tach this weekend
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silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-pos DD soon- gt500 if all works out
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#18 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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I got the bracket and tach and shift light for 85 bucks shipped. I would say i did alright!
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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#19 |
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Enthusiast
Join Date: May 2007
Posts: 949
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i would say you did fantastic... now if u could send it to me, you would be doing the "right" thing
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silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-pos DD soon- gt500 if all works out
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#20 |
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Proud American
1996 Mustang GT
10.76 @ 122 with d/a of 8365 ft
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 8,262
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lol
__________________
![]() 1996 Mustang GT with a 351 swap with Stalled C4 Special Thanks to: Andrews Racing Transmissions "Don't expect to build up the weak by pulling down the strong." |
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