When I apply the brakes on my 1995 S-10 I can hear the vacuum running from the engine to the power brake booster. It pulls vacuum as long as I have my foot on the brake.it is quite loud The vacuum diaphragm seems to be ok. is this normal. also if I make a quick stop the brake pedal will drop about 1 inch after I apply maximum pressure is this something that the ABS is doing. I thought of replacing the booster as my brakes take a lot of pressure to apply, but I have never known of a booster going bad if the diaphragm is good. Any one have any suggestions
- posted
19 years ago