All of the sudden the brake pedal got hard and the brakes don't work. The pedal travel is very slight and hard.
Is the engine also running poor such as tries to stall or the RPM is high? Is there an unusual suction type sound? Check the vacum hose to the brake booster, if loose, cracked or a hole in it.
This is about a 1/2" diameter hose and goes to the booster from the engine for power brake assist.
Check the drive belts under the hood. It should be be present and not loose.
Check the brake fluid level in the reservoir.
If no problems found, see a mechanics. Safety issue.
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It appears that I have a ABS brake system. It is a cumbersome old computerized system with lots of wires! It has no vacuum booster. It uses a pump to build up pressure that is stored in a resevoir on the ABS module. What I am learning is that the system "clicks" in test mode at start up. I didn't hear that recently. I'm assuming it is a blown relay. However, my Chilton Service manual is a piece of ****. I will be purchasing a Haynes manual when I get paid and proceeding to locate the proper relay to the system, There are three relays, one main system relay, one pump relay, and one other relay that I believe is for diagnostics? Anyway, I blew a fusible link looking for the proper relay and with much smoke and sparkle, I now have another project on this old bucket of bolts as I now have no instruments or starter upon turning the key!!!.
my brakes are hard to push and make a hissing sound
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