1990 AOD Shift Points

hvyh20 · 06-21-2004, 08:23 PM

I have a 1990 5.0 Convt with an AOD. I just bought the car and it is comletely stock. I have owned 5 speed mustangs but never an AOD. My question is as follows when cruising around town, the trans will not kick into 4th "overdrive" unless I am going over 55 miles an hour and I back out of the throttle. It will not shift into overdrive below that point. So if I'm going 50 mph, I'm in third gear and and turning about 2200 rpm with my 273 rear. But if I hit 55 mph and then feather the throttle, it will shift into overdrive. My gas mileage averages about 200 miles per tank. Which I think sucks. Any Ideas how to get it to go into OD earlier? Also, is this a lockup trans? Maybe I'm wrong but lockup means that while cruising at highway speeds, if I tap the gas slightly, the rpms should not increase, it should be like cruising in 5th gear with a man. transmissinn.

Thanks

stang_racer20 · 06-21-2004, 10:46 PM

Sounds like the TV is possibly out of wack. Do any other gears shift late or odd?

NitroStanggirl · 06-23-2004, 12:12 AM

Slide your TV forward a little and that should fix your problem

06-21-2004, 08:23 PM	#1
hvyh20 Registered Member Join Date: Jun 2004 Location: new jersey Posts: 1	1990 AOD Shift Points I have a 1990 5.0 Convt with an AOD. I just bought the car and it is comletely stock. I have owned 5 speed mustangs but never an AOD. My question is as follows when cruising around town, the trans will not kick into 4th "overdrive" unless I am going over 55 miles an hour and I back out of the throttle. It will not shift into overdrive below that point. So if I'm going 50 mph, I'm in third gear and and turning about 2200 rpm with my 273 rear. But if I hit 55 mph and then feather the throttle, it will shift into overdrive. My gas mileage averages about 200 miles per tank. Which I think sucks. Any Ideas how to get it to go into OD earlier? Also, is this a lockup trans? Maybe I'm wrong but lockup means that while cruising at highway speeds, if I tap the gas slightly, the rpms should not increase, it should be like cruising in 5th gear with a man. transmissinn. Thanks

06-21-2004, 10:46 PM	#2
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	Sounds like the TV is possibly out of wack. Do any other gears shift late or odd? __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

06-23-2004, 12:12 AM	#3
NitroStanggirl Registered Member Join Date: Oct 2001 Location: Idaho Falls, ID USA Posts: 42	Slide your TV forward a little and that should fix your problem __________________ 1970 Mustang Fastback; beefed up 351C should be making around 500hp.

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