Wednesday, October 7th, 2009 AT 6:50 AM
I replaced all 4 calipers and the master cylinder on my 2004 Suburban. I performed the manual brake bleed as the service manual says. I did this multiple times and get no air bubbles at the calipers. When the engine is off I can pump the brake pedal a few times and it builds up pressure nicely. When I start the engine and try to pump the brakes the pedal goes to the floor. My feeling is that the ABS system is at fault here. I am not getting an ABS light on the dashboard. In the service manual under ABS it states that there is an automated bleed procedure that can be started with a scan tool. My question is, is there a way to initiate this automated bleed procedure without a scan tool? If not is this scan tool a special dealer only scan tool or can I use one of the many aftermarket scan tools?