Having problems with your Cars & Trucks ?
Wi have an 89 larado and the brakes are really hard to push they stop just hard. It has a pump of some soprt on it ans its electrical. How do u fix?????
Sounds more like it is a master cylinder or Vacum issue. Look under the hood and locate the brake fluid reservoir. That is attached to the master cylinder. Attached to that should be a 3/8 to 1/2 vacum line. Make sure that has no holes in it and is connected. If it is check the vacum on the line. You should be able to disconnect it while the engine is running and put your thumb over the end. You should be able to feel a suction on your thumb when you cover it. It may not be a strong vacum but it should be there. If it is you will need to remove and replace your Master cylinder. This is 3 bolts on the firewall that you remove after disconnecting the reservoir. There are no electrical connection on the master cylinder unless it is a sensor and it doesn't sound like you have a sensor there. Once replaced you will need to bleed the brake lines. If you need a step by step guide for this I recommend the Haynes repair manual on the vehicle.
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