91 Cadillac DeVille ABS problem

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Old 01-30-08, 02:25 PM
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91 Cadillac DeVille ABS problem

While driving down the road I apply the brake pedal and suddenly the pedal becomes extremely hard and there is a noise coming from under the hood. This condition makes the car hard to stop. Can anyone help w/ diagnosis and solution?
 
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Old 01-30-08, 05:12 PM
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Can you describe the noise? Any chance it sounds like a huge vacuum leak/sucking sound? Car run any different?
 
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Old 01-31-08, 10:04 AM
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91 Cadillac DeVille ABS problem

Sounds like a small motor running. The car does not drive any differently. It's just difficult to stop because the brake pedal is so hard. It feels like the pedal is pushing back.
 
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Old 02-01-08, 07:34 AM
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can anyone help w/ this problem?
 
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Old 02-01-08, 08:54 AM
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Possible ABS Brake false activation. Pull a fuse on the ABS to deactivate it. If the problem goes away you need to diagnose the cause of ABS activation.
 
 

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