The ABS (Antilock Braking System) doesn't affect the
regular braking function of the brake system. It's
perfectly safe. Unless, of course, you have a low or
spongy pedal, or hear scraping/grinding sounds when
you apply the brakes. The fact that you felt the brake
pedal pulsating tells me the ABS pump and modulator
IS working. Maybe not when you need it to, but it's
working. What you describe sounds like a bad ABS
wheel speed sensor to me. Possibly a sensor is worn
out or dirty from brake dust causing it to activate the
ABS when it shouldn't. Is the ABS light on the dash on?
Did it come on? When you first start the engine the ABS
computer runs a self diagnosis. If everything is good,
the ABS light on the dash goes out. This part of the test
checks the wheel speed sensors, wiring, and the
computer itself. If there's a problem, the ABS light on
the dash will stay on. Then when you shift into gear and
the vehicle starts moving the computer tests the ABS
pump and modulator assembly. If the test fails, the ABS
light on the dash will come back on. If you listen
closely you may be able to hear the pump run for a few
seconds during this test. If the test passes the ABS
light on the dash will remain off. Another thing to
remember is there will be a trouble code in the ABS
computer if the ABS light on the dash is on. However,
once you turn off the ignition the code is cleared until
you start the engine again and the light comes back on.
So, if the ABS light comes on, drive to your local service
facility and DO NOT turn off the engine so they can plug
their scan tool into the ABS computer and get the
trouble code. Remind them not to shut off the engine
until they get the code. I'd definitely get a second
opinion. I'm sure the 18 year old "tech" has absolutely
no idea what he's doing or looking at!! Hope that helps!!
Jim