"Rainbow" (rainbeaux)
09/12/2014 at 16:27 • Filed to: None
0
9|
"Rainbow" (rainbeaux)
09/12/2014 at 16:27 • Filed to: None | 0
| 9 |
Okay, I'm confused. For the past week or so, I've been getting my brake warning light about 3 out of 4 times while accelerating from a full stop. Nothing looked or felt unusual, so I decided not to take it in unless the light became more consistent. Today, however, I went and bought a full tank of gas (I was less than 1/4 full the whole time the light was coming on) and it never came on once on my way home, even though I had to slam on the brakes twice for people pulling out of hidden driveways, which normally would have been a trigger for it. Does anyone know what might have been causing the light that a simple fill-up somehow fixed?
themushman
> Rainbow
09/12/2014 at 16:29 |
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exactly what light was coming up?
crowmolly
> Rainbow
09/12/2014 at 16:34 |
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Check the fluid level in your master cylinder. You may need new pads/linings, too.
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Rainbow
> themushman
09/12/2014 at 16:43 |
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The one that just says "BRAKE"
Will with a W8 races an E30
> Rainbow
09/12/2014 at 16:49 |
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Sure it wasn't the parking brake light? When the switch gets old and crusty, or the wires start to rot, it can come on when not intended. For example, the switch in my RX7 is completely stuck.
Buick Mackane
> Rainbow
09/12/2014 at 16:51 |
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This sounds like a CarTalk puzzler question. Your brake fluid is low and also you have a weak springs and shocks. When you fill up your tank with gasoline, the rear of the car is sagging so much that the brake fluid reservoir sensor thinks it is full again.
Nibbles
> Buick Mackane
09/12/2014 at 16:54 |
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Came to say this myself! The added weight of the fuel is tripping the reservoir sensor
NaturallyAspirated
> crowmolly
09/12/2014 at 18:11 |
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This is what happened to my co-workers Nissan Hardbody. The level was just low enough to illuminate the light sometimes.
I'm guessing that adding a full tank of gas added enough weight to the car (6 lbs/gallon) that the car tilted slightly and brake fluid flowed under the float.
Do what Crowmolly said.
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Rainbow
> Will with a W8 races an E30
09/12/2014 at 23:44 |
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It's the same light in my car, so that could be the problem.
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Rainbow
> NaturallyAspirated
09/12/2014 at 23:45 |
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The fluid is in the correct range, but you could be right. That would also explain why it only happens while accelerating, if the sensor is at the front.