ZR-1 Net Registry Forums - View Single Post - Can ANYBODY help a brother out,ABS is dead and I give up.

LGAFF · 06-18-2010

Found this....

Had a similar problem six months ago with the ABS light coming on while stopping. Would stay on till I shut the motor off. Restart and all was OK till next hard brake application.

All fuilds were in good shape level wise but kind of tired in terms of age. One Sunday I hooked my MytyVac brake bleeder to the ABS bleed port in the ABS vault behind the driver seat. Apparently had some smal quantity of air that had precipitated over 16 years and it was moving around inside the ABS valve system. Hard braking would initiate ABS activity and thus trigger the event. Since air is compressible the system barfed a alert. I bled out a couple of 1/2 cc. bubbles and about 1/2 a shot glass of brake fuild till no more bubbles appeared (just to be sure since it's so cheap) and haven't had an issue since.

06-18-2010	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Can ANYBODY help a brother out,ABS is dead and I give up. Found this.... Had a similar problem six months ago with the ABS light coming on while stopping. Would stay on till I shut the motor off. Restart and all was OK till next hard brake application. All fuilds were in good shape level wise but kind of tired in terms of age. One Sunday I hooked my MytyVac brake bleeder to the ABS bleed port in the ABS vault behind the driver seat. Apparently had some smal quantity of air that had precipitated over 16 years and it was moving around inside the ABS valve system. Hard braking would initiate ABS activity and thus trigger the event. Since air is compressible the system barfed a alert. I bled out a couple of 1/2 cc. bubbles and about 1/2 a shot glass of brake fuild till no more bubbles appeared (just to be sure since it's so cheap) and haven't had an issue since. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359