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Old 06-24-2023, 07:11 PM   #1
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1986 Fleetwood bounder v8 P30 Brakes still not releasing.found disconn wire sensor

Ok I still have the issue with my brakes not releasing. But now I found a couple wires tube and some kinda sensor not connected. I'll post the pictures right now. Please help out guys. I'm planning to change all my brake calipers.
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Old 06-24-2023, 07:24 PM   #2
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You need to jack up each wheel and see which one is not releasing. It's most likely a sticking caliper or a bad brake hose.



One of those vacuum lines looks like it goes to the cabin for the climate control system.
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Old 06-24-2023, 08:05 PM   #3
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The last pix is of the air conditioner reciever/dryer. The one above is the heater fan speed resistor.
Next 2 are vacuum chambers for the heat- A/C systems.

Nothing to do with brakes.

Have you confirmed the bellcrank, I marked in your other post, is moving freely.
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Old 06-24-2023, 08:57 PM   #4
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The 2 wires in the first picture are probably for an electric cooling fan. The round ball in the second picture is a vacuum reserve canister . The other item is an actuator for your climate control. The third picture is a broken vacuum line for your climate control . The fourth is the resistor bank for the speeds on your blower motor. The fifth is possibly a high pressure switch on your air conditioner which turns on the auxillary electric cooling fan when the high side pressure gets above the switch setting.
None of this stuff has anything to do with your brakes. Check to make sure your brake pedal is returning and lubricate all the moving points on the linkage. The only way to determine which brake(s) are sticking is to jack up each wheel and turn it. For the rear wheels , you will have to have the transmission in neutral ,with the parking brake off and the engine may have to be running if you have an "autopark" brake . Make sure you chock all the wheels that are on the ground to prevent the motorhome from moving. If all the wheels are impossible to move , you may have a problem with the master cylinder od brake pedal linkage.
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Old 06-24-2023, 11:23 PM   #5
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About the bellcrank

Quote:
Originally Posted by twinboat View Post
The last pix is of the air conditioner reciever/dryer. The one above is the heater fan speed resistor.
Next 2 are vacuum chambers for the heat- A/C systems.

Nothing to do with brakes.

Have you confirmed the bellcrank, I marked in your other post, is moving freely.
It looks like the bellcrank bolt is very loose. You talking about this thing. Look at attachment photo.
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Old 06-24-2023, 11:26 PM   #6
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I'll do that soppy

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Originally Posted by Soppy View Post
The 2 wires in the first picture are probably for an electric cooling fan. The round ball in the second picture is a vacuum reserve canister . The other item is an actuator for your climate control. The third picture is a broken vacuum line for your climate control . The fourth is the resistor bank for the speeds on your blower motor. The fifth is possibly a high pressure switch on your air conditioner which turns on the auxillary electric cooling fan when the high side pressure gets above the switch setting.
None of this stuff has anything to do with your brakes. Check to make sure your brake pedal is returning and lubricate all the moving points on the linkage. The only way to determine which brake(s) are sticking is to jack up each wheel and turn it. For the rear wheels , you will have to have the transmission in neutral ,with the parking brake off and the engine may have to be running if you have an "autopark" brake . Make sure you chock all the wheels that are on the ground to prevent the motorhome from moving. If all the wheels are impossible to move , you may have a problem with the master cylinder od brake pedal linkage.
Thank you I'll try that
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Old 06-24-2023, 11:36 PM   #7
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I'll do that cadillac

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Originally Posted by cadillac_al View Post
You need to jack up each wheel and see which one is not releasing. It's most likely a sticking caliper or a bad brake hose.



One of those vacuum lines looks like it goes to the cabin for the climate control system.
I'll check everything starting from front wheels.
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Old 06-25-2023, 01:37 AM   #8
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It looks like the bellcrank bolt is very loose. You talking about this thing. Look at attachment photo.
That's a heater temp control valve.

The belcrank is along the red line.Click image for larger version

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Old 06-25-2023, 06:30 AM   #9
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Seems like I remember the p30s having a electric brake on drive shaft that was prone to sticking that engages when put into park.
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Old 06-25-2023, 06:44 AM   #10
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Here is a test. Drive the RV and stop with the brakes.
If they are stuck on or dragging. Put your foot under the pedal and pull up on it.

If the brakes release. It's that bekcrank shaft and bushings that are binding up. They need some lube.
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Old 06-25-2023, 02:34 PM   #11
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The 2nd PIC ball on right is VACUUM RESERVOIR for dash controls of heat/air. The 4th PIC looks like the RESISTOR PACK for the heater/air dash blower to select SPEED; 5th PIC SWITCH looks like A/C high pressure SAFETY SWITCH to disconnect compressor and prevent damage if pressure too high.
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Old 06-29-2023, 12:58 AM   #12
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Twinboat

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Here is a test. Drive the RV and stop with the brakes.
If they are stuck on or dragging. Put your foot under the pedal and pull up on it.

If the brakes release. It's that bekcrank shaft and bushings that are binding up. They need some lube.
It's not the bellcrank. My brake goes back to place. I have to push the brakes all the way down for it to break. I'm planning to replace all the calipers, brake pads, hoses and rotors. I have a feeling that it's all going to be pointless. I have a wooden barrier in front of the motor under the hood.
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Old 06-29-2023, 05:51 AM   #13
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It's not …….. I have a wooden barrier in front of the motor under the hood.
What does this mean?
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Old 06-30-2023, 08:19 PM   #14
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Planning to change all the calipers

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What does this mean?
There is a wood plywood flat wall I front of the motor.
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