Hi,

I have a 2000 Envoy and I recently replaced the passenger rear caliber and rotor....after a few attempts to bleed the system I failed....so I took it to a local shop so they can bleed the lines cause my peddle is extremely low....they stated that there was very little air in the lines....and my issue is the ABS system. My question is "how can I know which of the ABS componets are bad? would it be the module or the pump?....I see the pump on E-bay for $50.00 and the module for $600.00....

Any advice would be great.

Thanks,

If you have a problem with your ABS it should be throwing codes. Get your car scanned by someone that can scan for body codes (Tech 2, Snap On, etc.) and it will point you in the right direction. Transmission shops can usually scan for these codes.

"Very little air in the lines"??? There should be no air in the lines.

try turning on the key when you bleed the brakes some of them work that way