overdrive light keeps blinking on and off - 2003-04 Mach 1 Registry Owners Club

machmax1234 · 11-14-2007, 08:25 AM

my wifes over drive light keeps blinking on and off, but only every other day or so. its a 98 3.8 auto. o yea if i click the overdrive button it wont work either but only when the light is acting up. probably a stupid sensor im assuming

thanks for the help

machmax1234 · 11-15-2007, 03:50 PM

anyone want to take a shot?

3150Mach1 · 11-15-2007, 04:40 PM

I think I have read on here that the blinking light acts as a trouble light for the tranny. Might be wrong. Try searching it.

rich1 · 11-15-2007, 05:18 PM

You need to check the trans for codes.Find someone with a scanner that will read ALL (I use a Mac/spx)

the codes or go to dealer.

machmax1234 · 11-16-2007, 08:06 AM

can a sct scan for tranny codes, im getting one next month to solve the mach's 02 problem. hopefully i can kill two birds with one stone.
hopefully its just a sensor because its got 198,000 m dont really want to tear into that thing at this point

tom281 · 03-18-2010, 07:56 PM

Anyone ever identify what the blinking OD light means? Mine did this today for the first time, for about 30 seconds while cruising down the highway.

cbrewster3 · 03-18-2010, 08:00 PM

When it blinks, that means something could be seriously wrong and you are supposed to stop driving it immediately. Ours did that and we drove it a little ways, checked the oil, and it had none... so check your oil

Mustang9668 · 03-19-2010, 10:21 AM

Correct. Darrin himself told me its like a CEL for the transmission.

francismaximus · 03-19-2010, 10:32 AM

Its going to have tranny codes.

tom281 · 03-19-2010, 11:36 AM

Checked for codes with my tuner and it found a code, 1728 I think was the number and description was "trans slip". I cleared the code and will check oil level and see what happens.

francismaximus · 03-19-2010, 01:08 PM

Quote:

Originally Posted by tom281

Checked for codes with my tuner and it found a code, 1728 I think was the number and description was "trans slip". I cleared the code and will check oil level and see what happens.

Transmission slippage erratic or no torque converter clutch operation

11-14-2007, 08:25 AM	#1
machmax1234 Guest Join Date: Aug 2007 Location: greenville Posts: 6	overdrive light keeps blinking on and off my wifes over drive light keeps blinking on and off, but only every other day or so. its a 98 3.8 auto. o yea if i click the overdrive button it wont work either but only when the light is acting up. probably a stupid sensor im assuming thanks for the help

11-15-2007, 03:50 PM	#2
machmax1234 Guest Join Date: Aug 2007 Location: greenville Posts: 6	Re: need help please anyone want to take a shot?

11-15-2007, 04:40 PM	#3
3150Mach1 Love my Mach Join Date: Apr 2005 Location: Charlottesville, VA Posts: 13,678	Re: need help please I think I have read on here that the blinking light acts as a trouble light for the tranny. Might be wrong. Try searching it. __________________ 2003 slowmatic 11.105@117mph w/125 shot of Nitrous best to date Kooks LTsw/OR X, elect cutouts, JLT RAI w/C&L 85 MAH,1" Spacer,PP Lower intake,Accufab TB,160 T-stat,EF Cooling Mod,NX Kit,Mez Electric Water pump,SLP Linelock,FRPP 4.10s-Alum Dif Cover-Alum Driveshaft & SL, Steeda Bumpsteer,MM Alum rack bushings,Deep Alum Tranny pan,Predator,Steeda AUCAs,MM ALCAs, Dspecs,MM CC plates & FLSFCs,MRT Guage cluster,AEM WB,MRT hood struts,Seq TLs, carbon fiber hood/trunk/Cobra wing,220 amp alt

11-15-2007, 05:18 PM	#4
rich1 AUTOMACHTIC Join Date: Oct 2007 Location: RTP/ N.C. Posts: 4,813	Re: need help please You need to check the trans for codes.Find someone with a scanner that will read ALL (I use a Mac/spx) the codes or go to dealer.

11-16-2007, 08:06 AM	#5
machmax1234 Guest Join Date: Aug 2007 Location: greenville Posts: 6	Re: need help please can a sct scan for tranny codes, im getting one next month to solve the mach's 02 problem. hopefully i can kill two birds with one stone. hopefully its just a sensor because its got 198,000 m dont really want to tear into that thing at this point

03-18-2010, 07:56 PM	#6
tom281 forty-six & 2 Join Date: Jan 2005 Location: NE Indiana Posts: 508	Re: need help please Anyone ever identify what the blinking OD light means? Mine did this today for the first time, for about 30 seconds while cruising down the highway. __________________ tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner

03-18-2010, 08:00 PM	#7
cbrewster3 Registered User Join Date: Nov 2009 Location: Rio Rancho, NM Posts: 156	Re: need help please When it blinks, that means something could be seriously wrong and you are supposed to stop driving it immediately. Ours did that and we drove it a little ways, checked the oil, and it had none... so check your oil

03-19-2010, 10:21 AM	#8
Mustang9668 saving pennies Join Date: Apr 2008 Location: Griffin, Ga Posts: 1,487	Re: need help please Correct. Darrin himself told me its like a CEL for the transmission. __________________ 03 Mach 1--Auto, 4000 stall, 96 cobra intake cams, 4.10s, ARH L/T's, off road X, Moser 31 spline axles, Eaton Posi diff., MM FLSFC, Tokico D-Specs, k&n filter, 17x9/10.5s AFS Mac wheels 03 Cobra--18x9/10.5 TSW Nurburgring Wheels, Nitto NT05's 275/295, Stiegemeier ported, 2.87” pulley, Canton 9-qt oil pan, Spec Stage II clutch, MM coilovers, Bilstein Shocks/Struts, LFP heat exchanger, LFP radiator, Evans cooling system, 14" Brembo 4 Piston calipers, 470whp, 460ft-lbs

03-19-2010, 10:32 AM	#9
francismaximus Registered User Join Date: Aug 2009 Location: West Lafayette, IN Posts: 266	Re: overdrive light keeps blinking on and off Its going to have tranny codes.

03-19-2010, 11:36 AM	#10
tom281 forty-six & 2 Join Date: Jan 2005 Location: NE Indiana Posts: 508	Re: overdrive light keeps blinking on and off Checked for codes with my tuner and it found a code, 1728 I think was the number and description was "trans slip". I cleared the code and will check oil level and see what happens. __________________ tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner

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