BRAKE PRESSURE DROPS ONCE CAR IS STARTED. WHAT COULD CAUSE THIS?

1994 Honda Civic

Tiny

cliffquigley3

July, 30, 2012 AT 1:58 PM

Hey im having a brake problem on my 1994 honda civic cx. I just bought it, it had a bad cv axle and caliper. Replaced them both and now I have very little brake pressure when I start the car. Before I start the car the pedal feels good and firm from bleeding it and once u start it, it looses alot of pressure. I can still stop but it comes close to hitting the floor by the time it starts to stop. I dont remember if I said abs cv axle or not does that make a difference? Any info would be great

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4 Answers

Tiny

hmac300

July, 30, 2012 AT 2:10 PM

Try rebleeding your system or have a pro do it. Make sure master is full when you do this.

Tiny

cliffquigley3

July, 30, 2012 AT 3:30 PM

I do all my own work I know how to bleed brakes. Ill do it again and see thanks for the reply.

Tiny

axis

July, 30, 2012 AT 9:03 PM

Check rear brakes and adjust if required. Too much clearance between the drum and shoes would result in the symptoms you mentioned.

Tiny

mhpautos

July, 31, 2012 AT 5:15 AM

If the pedal is dropping under light pedal pressure, you may have a bypassing brake master cylinder, if you hold firm pressure and it stays up look into this as well.

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