Rob connors Posted April 14, 2021 Share Posted April 14, 2021 I have a 1995 Monaco Executive with a 8.3 Cummins engine .Does anyone know where I can get my PAC Brake serviced in Florida .. or anywhere TIA. Link to comment Share on other sites More sharing options...
Dr4Film Posted April 14, 2021 Share Posted April 14, 2021 John Douglas of Action Mobile located in Orlando would be happy to service your PacBrake. 407-851-1800 They are my "goto" shop for all engine repairs and service. They replaced my cracked exhaust manifold a year ago at a fraction of what the Cummins shop in Orlando wanted to do the same job. I was there 2 weeks ago to have my engine and generator serviced with fluids and filters. Link to comment Share on other sites More sharing options...
Dennis H Posted April 14, 2021 Share Posted April 14, 2021 First question is; is this your original brake.? If so, it's not worth fixing. On my 96 Dynasty the exhaust brake was somewhat ineffective. I replaced it with a new PRXB directly from PacBrake. What a difference !!! I'm sorry I don't have the part number as my maintenance manual went with the coach when I sold it, but you can call or email PacBrake directly. They were very very helpful...... Here's their contact info...Dennis 800.663.0096 / pacbrake.com/PRXB. Link to comment Share on other sites More sharing options...
Rob connors Posted April 14, 2021 Author Share Posted April 14, 2021 Thank You Richard really appreciate response I will check John out Thanks Dennis It is original I can't tell if its working or not it seems to downshift the transmission but not very effective.. Who would I get to install it does Pacbrake have authorized service team Link to comment Share on other sites More sharing options...
dl_racing427 Posted April 15, 2021 Share Posted April 15, 2021 19 hours ago, Dennis H said: First question is; is this your original brake.? If so, it's not worth fixing. On my 96 Dynasty the exhaust brake was somewhat ineffective. I replaced it with a new PRXB directly from PacBrake. What a difference !!! I'm sorry I don't have the part number as my maintenance manual went with the coach when I sold it, but you can call or email PacBrake directly. They were very very helpful...... Here's their contact info...Dennis 800.663.0096 / pacbrake.com/PRXB. When I bought my 1993 Dynasty, the Pac brake wasn't working at all. A quick troubleshoot revealed the quick release valve was blown and the PAC wouldn't close at all. I replaced the quick release valve and it is now very effective at controlling my speed. I can descend a 6% grade with my enclosed race trailer in tow, and not even have to use the service brakes. I control the speed by manually selecting what gear I need. Link to comment Share on other sites More sharing options...
Dennis H Posted April 16, 2021 Share Posted April 16, 2021 (edited) Rob, I replaced mine while at a campground. Pretty easy to install. Couple bolts, a wire and an air line IIRC Spray the thing with PB blaster and let it sit overnight. That should allow the bolts to come off easily. Took about 20 minutes. If you're not mechanically inclined or just don't want to fuss with it, any mobile mechanic can do it for you. Best place to look for one is rvservicereviews.com, put in your city and pick one......Dennis Edited April 16, 2021 by Dennis H Link to comment Share on other sites More sharing options...
Rob connors Posted April 16, 2021 Author Share Posted April 16, 2021 Dennis are you talking about the quick relief valve ? if so I’m sure I can replace it if I know where to look for it . Is it on the exhaust or intake ? Link to comment Share on other sites More sharing options...
Dennis H Posted April 16, 2021 Share Posted April 16, 2021 Rob, I'm talking about replacing the entire assembly. Part number C40100....Dennis Link to comment Share on other sites More sharing options...
Rob connors Posted April 16, 2021 Author Share Posted April 16, 2021 Thanks A lot Dennis I didn’t know PAC Brake could be replaced without specialized tools.I thought it was more like a Jake Brake Thanks for educating me .I have been digging deeper and I understand it a lot better thanks for your post 1 Link to comment Share on other sites More sharing options...
jimc99999 Posted June 8, 2021 Share Posted June 8, 2021 On 4/15/2021 at 3:36 AM, dl_racing427 said: When I bought my 1993 Dynasty, the Pac brake wasn't working at all. A quick troubleshoot revealed the quick release valve was blown and the PAC wouldn't close at all. I replaced the quick release valve and it is now very effective at controlling my speed. I can descend a 6% grade with my enclosed race trailer in tow, and not even have to use the service brakes. I control the speed by manually selecting what gear I need. I noticed my exhaust brake wasn't working today. After a bit of poking around at a rest area, it started working. The brass knob (circled in pic below) spins freely and wobbles; seems like some kind of air release. Turn it just so and the cylinder works when you press the brake button, otherwise you just get a hiss of air through a valve. Where did you get the air release valve? Is this the part you replaced? Jim Link to comment Share on other sites More sharing options...
dl_racing427 Posted June 8, 2021 Share Posted June 8, 2021 Jim, it's been a long time, but I think the quick release valve was where the hose connects to the Pacbrake cylinder. What you're referring to is, I think, the vent for the other side of the cylinder. Link to comment Share on other sites More sharing options...
Mel S - '96 Safari Posted June 8, 2021 Share Posted June 8, 2021 7 hours ago, dl_racing427 said: Jim, it's been a long time, but I think the quick release valve was where the hose connects to the Pacbrake cylinder. What you're referring to is, I think, the vent for the other side of the cylinder. https://www.mrostop.com/sqe2-humphrey-1-4-super-quick-exhaust-valve Link to comment Share on other sites More sharing options...
dl_racing427 Posted June 9, 2021 Share Posted June 9, 2021 Mel, That looks like it. Glad you found it. Link to comment Share on other sites More sharing options...
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