my brakes wont work, when i push the brake pedal its stiff.

Asked by ShelbyNorma Nov 05, 2013 at 01:51 PM about the 1994 Jeep Grand Cherokee

Question type: Maintenance & Repair

yesterday i had my crankshaft sensor changed on my 1994 jeep grand cherokee, now
when i push my brakes they wont move they're stiff and i'm not sure why. i know that they
are power brakes and i know i have abs (not sure if thats the same thing) i guess i need to
know if there was something that might have gotten unplugged, or if my brakes went out
completely and i need something replaced.

2 Answers
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thejeepdoctor answered 10 years ago

Make sure the hose that goes from the brake booster is hooked up to the intake. The booster is the big round thing behind the brake master cylinder. I also believe the 94's use a pedal position sensor that is located in the front of booster as well. if it is not in place, it may cause a vac. leak. And vac. is what makes it work. Hope this helps......

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CountryWife answered 8 years ago

I went to school years ago rebuilding engines and transmissions. My teacher would always day; kiss the situation. Keep it simple stupid. As a chic guy's always looked at females being car stupid. My brake pedal also went hard, I opened the hood, took my flash light and reviewed from my brake booster and all hoses to the engine. Your looking for a oil (brake fluid) leak. I found a valve had cracked and exposed the "oil" at my brake booster. For less than $5.00 I replaced that plastic valve and reconnected the hose to fix my problem. Good Luck! Keep it Simple <3

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