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Old 12-17-2010, 01:16 PM   #1
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Power assist brakes on 2010 GT 378TS

It appears (sounds like) the power assist for my brakes (2020 GT 378TS) is not working. Generally I hear a "whirring" sound when pressure is applied to the brake pedal. I don't hear it now.

Is there a fuse that is possibly blown; or is it a problem with the brakes themselves.

Thanks in advance for your feedback and a Merry CHrismas to all!

Pete
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2010 Georgetown 378TS; 2012 4dr Jeep Rubicon
1 Yellow Lab (hers);1 Little Bitty dog (mine)
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Old 12-17-2010, 07:44 PM   #2
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Maybe someone who has access to their motorhome can check this out for me.........ours is 2 hours away at the dealer for repairs.

If I recall correctly, even WITHOUT the key in the ignition, if you press down on the brake pedal, you should hear an electronic/hydraulic sound along with an increase in resistance pressure felt on the brake pedal.

As I said, I can't verify this with my own unit, but maybe someone out there can?

If there is any kind of electrical circuit with a fuse, you may even hear it without the keys in. Don't know if this will help or not.
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Old 12-17-2010, 11:47 PM   #3
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KENANDTERRY, you are correct even without the key on you can hear and feel the pressure on the pedal. If there is a fuse it would be in the hood area fuse box.
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Old 12-18-2010, 11:44 AM   #4
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Hydromax brake fuses

According to my 2008 F53 Owners Guide the power distribution box located in the engine compartment fuse position # 1 is associated with the brake system.

My owners guide is for a 2008 model. If you do not have a owners guide you can down load one at number of sites including fords. By the way I have assumed that instrument cluster warning lamps are functioning correctly.

If not there are two fuses located in the passenger compartment that are associated with the power brakes. fuse positions #10 & 14

Again I must emphasize that this information is based on a 2008 Owners Guide.

Hope this info is helpful

Gary
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Old 12-20-2010, 08:33 PM   #5
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mbtelguy......(Gary)............

1. Any chance you can give me the website to download the 2008 owners manual you talk about? I didn't get one for my rig and I could really use one.

2. Any chance you used to work for Manitoba Bell?
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