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DIY Power Brake Booster Replacement

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Old 11-22-2012, 12:15 PM
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Halojm Halojm is offline
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1997 Dodge Ram 1500
 
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Vehicle: 97 Ram 1500 4x4 Sport
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Default DIY Power Brake Booster Replacement

This is a DIY Power Brake Booster (PBB) Replacement on a 97 Ram 1500. Mine was hissing under the dash, and needed to be replaced. What is nice on this one is there is no need for complete disassemble of the master cylinder.

Tools needed,
15 mm socket
3/8 drive ratchet
2" & 8" extension
Flat screw driver
Pliers

Time: A leisure hour.

The PBB it the large drum like contraption directly behind the brake fluid reservoir and master cylinder. It bolts through the firewall with 4 studs. A rod attached to it goes through the firewall and is attached to the brake pedal. As with everything....disconnect the negative battery terminal.
Click the image to open in full size.

Start by disconnecting the electrical connection depicted then proceed to remove the 2 nuts that hold the brake fluid reservoir and master cylinder
Click the image to open in full size.
Click the image to open in full size.

The brake reservoir and master cylinder can now be carefully pull forward to clear the mounting studs, allow it to hang down out of the way, without crimping any of the brake lines. Remove the vacuum valve.
Click the image to open in full size.

Now from the inside of the cab under the dash, by the steering column. Locate the rod that comes through the firewall and attaches to the brake pedal. At the point of attachment is a metal clip and washer, that will need to be removed to remove the rod.
Click the image to open in full size.
Click the image to open in full size.

Now locate the 4 nuts inside the cab, on the firewall above the steering column. Here's 3 of the 4, the forth is where the dot is behind steering column. Remove these nuts.
Click the image to open in full size.

Now carefully pull the PBB away from the firewall, you may need to manipulate the brake reservoir to clear it.
Click the image to open in full size.
Click the image to open in full size.

I compared part numbers to insure I had the right one, most new ones are remanufactured, so dates will differ, this one was from, 96 originally.
Click the image to open in full size.

Put the new one in the same way you took the old one out. Connect the rod to the brake pedal, and install the 4 nuts to the studs, tighten until tight.
Click the image to open in full size.

My Reman new one came with a new vacuum valve, so install the line to that.
Click the image to open in full size.
Click the image to open in full size.

Now carefully pull the brake fluid reservoir, back in place on reinstall the nuts, while holding it in place, there will be slight spring tension. Tighten nuts until tight.
Click the image to open in full size.

Reconnect the electrical connector. Check brake fluid level. Reconnect battery, start vehicle and check brake pedal for correct firmness. Test drive.
Click the image to open in full size.
Click the image to open in full size.
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1997 Ram 1500 4x4 Sport 5.2L, Hughes Plenum, SCT 91 tune, 46RE/Shift Kit, Trac Loc 3:92 gears, Headers, Magnaflow cat, Flowmaster, 2" Tuff Country AAL + Coil Spacers, ProComp Wheels, 295/70/17 Nitto Terra Grappler A/T.

Last edited by Halojm; 11-22-2012 at 12:18 PM..
  #2  
Old 11-22-2012, 01:26 PM
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gdstock gdstock is offline
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Good job. Made it look easy.
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  #3  
Old 11-22-2012, 07:26 PM
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Halojm Halojm is offline
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1997 Dodge Ram 1500
 
Join Date: Sep 2012
Vehicle: 97 Ram 1500 4x4 Sport
Location: Wade NC
Posts: 229
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Thanks, it is quite easy to do.
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1997 Ram 1500 4x4 Sport 5.2L, Hughes Plenum, SCT 91 tune, 46RE/Shift Kit, Trac Loc 3:92 gears, Headers, Magnaflow cat, Flowmaster, 2" Tuff Country AAL + Coil Spacers, ProComp Wheels, 295/70/17 Nitto Terra Grappler A/T.
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Old 11-25-2012, 09:28 AM
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VEETEN VEETEN is offline
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Nice write-up.
Thanks for taking the time to do this.
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Old 11-25-2012, 09:28 AM
 
 
 
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