ABS light

seco · 05-18-2008, 01:32 PM

Recently the ABS light turns on as soon as I get on the highway.
Turns off when I exit. Don't have any issues with the brakes. Doesn't pull to
the side when braking. Brake fluid is within fluid limit, doesn't leak. The brake
pedal doesn't feel spongy or stiff. No uneven wear on pads. Don't think
any pistons in the calipers are sticking. IDK.... I don't have much experience
with brakes other than swapping out rotors and replacing pads. Any ideas?
Ride is a 1999 GT 4.6L 2 valve. All brake system is OEM.

keg65 · 05-18-2008, 01:38 PM

did you change tire size? different sizes front to rear?

seco · 05-18-2008, 01:46 PM

Quote:

Originally Posted by keg65

did you change tire size? different sizes front to rear?

yeah I recently bought new rear 285/40/18 Nittos 555's prolly about 3 months ago or so. The rears use to have 275/40/18's which were shorter in overall height. The fronts I'm running 275/35/18's. The ABS light issue just started recently so I didn't think the tires were linked to the ABS light.... anyone else think the tire size can set off the ABS light?

BlackSunshine01 · 05-18-2008, 07:49 PM

yes it can set the abs light off, what year is your stang? if it is a new edge that is a considerable differance in height from a stock 245/45/17. that could do it. id check the exciter rings on the back of the brake rotors. alot of times they get coated with dirt and debris. instead of looking like a sporcket it will look smooth like a circle so the abs sensor wont read it.

95 BLK Cobra · 05-18-2008, 08:56 PM

My 95 Cobra was turning the light on and off - more random that yours...turned out to be the left rear sensor has a bad connection...replaced the sensor and all is good...I hated that light bein on

2k4mk1 · 05-19-2008, 06:29 AM

Yaeh chech for debris and or dirt on the pu or the ring.
Also may have an intermittent reader or faulty connct.

I have 315/35/17's on my car and no light. Usually the tire size will not effect it

seco · 05-19-2008, 09:20 AM

so what do the "exciter rings on the back of the brake rotors" look like.
Anyone? yeah I'll try cleaning it(them) - thanks

keg65 · 05-20-2008, 10:57 PM

not justa different size tire, but a different diameter tire on the front compared to the rear.
ABS will pick up two different wheel speeds.

96greengt · 05-20-2008, 11:38 PM

Reading your post, I'd say just don't get on the highway, it will never come on then.

Can you pull codes on it??

seco · 05-22-2008, 09:52 AM

LOL ... I rarely ever do ... only when I make a trip to eat lunch with wifey during the work week. Yeah I'll probe for OBD codes when the ABS light is on.

seco · 05-22-2008, 09:53 AM

Quote:

Originally Posted by keg65

not justa different size tire, but a different diameter tire on the front compared to the rear.
ABS will pick up two different wheel speeds.

yeah I'm rolling 35 series in front and 40's in rear

seco · 05-27-2008, 12:29 PM

funny thing...... did some highway cruising this holiday weekend and the freakin ABS light would not come on at all. Even drove all the way the fuck to the fort worth zoo and no ABS light... damn grimlin...

96greengt · 05-27-2008, 08:58 PM

A little piece of black electrical tape does wonders !!!

05-18-2008, 01:32 PM	#1
seco 4 valve FTW Join Date: Apr 2005 Location: TEXAS Posts: 899 Trader Rating: (0)	ABS light Recently the ABS light turns on as soon as I get on the highway. Turns off when I exit. Don't have any issues with the brakes. Doesn't pull to the side when braking. Brake fluid is within fluid limit, doesn't leak. The brake pedal doesn't feel spongy or stiff. No uneven wear on pads. Don't think any pistons in the calipers are sticking. IDK.... I don't have much experience with brakes other than swapping out rotors and replacing pads. Any ideas? Ride is a 1999 GT 4.6L 2 valve. All brake system is OEM. __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30 gears, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, and an O/R X and RAM clutch soon to come.....

05-18-2008, 07:49 PM	#4
BlackSunshine01 Registered User Join Date: Jan 2008 Location: north east s.a. Posts: 334 Trader Rating: (0)	yes it can set the abs light off, what year is your stang? if it is a new edge that is a considerable differance in height from a stock 245/45/17. that could do it. id check the exciter rings on the back of the brake rotors. alot of times they get coated with dirt and debris. instead of looking like a sporcket it will look smooth like a circle so the abs sensor wont read it. __________________ who needs the after market? lowerd 01 GT.

05-19-2008, 06:29 AM	#6
2k4mk1 Never treat a Lady like a Bitch!!! Join Date: Dec 2003 Location: SanAntonio Posts: 6,083 Trader Rating: (1)	Yaeh chech for debris and or dirt on the pu or the ring. Also may have an intermittent reader or faulty connct. I have 315/35/17's on my car and no light. Usually the tire size will not effect it __________________ 04 Oxford White MACH1,5 SPD with IUP,K&NAircharger Borla Stingers,SLP Catted X pipe,Tri-ax,SCT Flashtune,Max Mtr Spt 4 bolt adj C/C plates, Drilled/Slotted rotors all 4 corners 281 rwhp on Mustang Dyno,306 rwhp on a Dynojet 94 Black Lightning Daily Driver&85GT FACH1 Project under construction

05-19-2008, 09:20 AM	#7
seco 4 valve FTW Join Date: Apr 2005 Location: TEXAS Posts: 899 Trader Rating: (0)	so what do the "exciter rings on the back of the brake rotors" look like. Anyone? yeah I'll try cleaning it(them) - thanks __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30 gears, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, and an O/R X and RAM clutch soon to come.....

05-22-2008, 09:52 AM	#10
seco 4 valve FTW Join Date: Apr 2005 Location: TEXAS Posts: 899 Trader Rating: (0)	LOL ... I rarely ever do ... only when I make a trip to eat lunch with wifey during the work week. Yeah I'll probe for OBD codes when the ABS light is on. __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30 gears, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, and an O/R X and RAM clutch soon to come.....

05-18-2008, 01:38 PM	#2
keg65 Change always makes Sense (or Cents) Join Date: May 2005 Location: NE San Antonio Posts: 1,211 Trader Rating: (0)	did you change tire size? different sizes front to rear?

05-18-2008, 08:56 PM	#5
95 BLK Cobra LoneStarStangs Addict Join Date: Mar 2007 Location: Corpus Christi Posts: 303 Trader Rating: (3)	My 95 Cobra was turning the light on and off - more random that yours...turned out to be the left rear sensor has a bad connection...replaced the sensor and all is good...I hated that light bein on

05-20-2008, 10:57 PM	#8
keg65 Change always makes Sense (or Cents) Join Date: May 2005 Location: NE San Antonio Posts: 1,211 Trader Rating: (0)	not justa different size tire, but a different diameter tire on the front compared to the rear. ABS will pick up two different wheel speeds.

05-27-2008, 12:29 PM	#12
seco 4 valve FTW Join Date: Apr 2005 Location: TEXAS Posts: 899 Trader Rating: (0)	funny thing...... did some highway cruising this holiday weekend and the freakin ABS light would not come on at all. Even drove all the way the fuck to the fort worth zoo and no ABS light... damn grimlin... __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30 gears, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, and an O/R X and RAM clutch soon to come.....

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