Vacuum leak? - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by cdiesel, this thread has received 5 replies and been viewed 628 times.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 08-10-2007, 10:25 PM Thread Starter
 
Join Date: Oct 2005
Posts: 506
Points: 20,122
Thanks: 0
Thanked 0 Times in 0 Posts
Vacuum leak?

Turn on the AC and it blows from the defrost and the rear side vents. Won't out of the back roof vents or the dash vents. half way home it blew out all the vents for just a minute and then went back to not working. It's happend once before over a month ago. I can hear the vacuum pump working. Does this sound like a leak? Thanks
On edit...
It does the same thing whether it's on AC or not.
cdiesel is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 08-11-2007, 01:16 AM
 
Join Date: Apr 2007
Posts: 2
Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Sounds like the vacuum acuator for the auto lock hubs is leaking. Its right by the vacuum pump. Plug the supply line to the acuator and see if your vents work properly.
MDWSTTRKWRKS is offline  
post #3 of 6 (permalink) Old 08-11-2007, 01:27 AM
TDG Mafia - Booze Runner
 
Snowaholic's Avatar
 
Join Date: Jul 2005
Location: Bend, OR
Posts: 3,705
Points: 28,403
Thanks: 137
Thanked 135 Times in 111 Posts
Yep, it's a Vacuum leak. All to common.. Try what is stated above, and then check the lines to the hubs.. I'll bet the hub diaphram is leaking. PIA to test, just replace both of them...

2007 Dodge 3500 MegaCab Laramie CTD 4x4 Patroit Blue Just a bunch of Go fast parts and programing
Snowaholic is offline  
post #4 of 6 (permalink) Old 08-11-2007, 02:02 AM
Kip
In the passing lane
 
Kip's Avatar
 
Join Date: Dec 2008
Posts: 1,453
Points: 48,379
Thanks: 56
Thanked 77 Times in 67 Posts
mine does the same thing, but I already have winch hubs on the truck so I was wondering could I just plug it off at the vacuum pump?

2005 2500HD DIRTYMAX 6in lift, dual exhaust, afe airbox. Tuner soon to come

2001 PSD shortbed crewcab, ATS tranny edge juice w/attitude, Superchips programmer, Gauges, exhaust, 4inch lift w/35s, (SOLD)

Originally Posted by sledneck57
Your sweating like a queer holding a hot dog.lol.
Kip is offline  
post #5 of 6 (permalink) Old 08-11-2007, 02:12 AM
 
Join Date: Apr 2007
Posts: 2
Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Yes just plug the vacuum supply line at the acuator that comes from the pump. It goes from the pump to the vacuum resevoir and tees from there to the inside of the truck and to the acuator for the auto hubs.
MDWSTTRKWRKS is offline  
post #6 of 6 (permalink) Old 08-11-2007, 04:08 AM
Senior Member
 
pontiacross's Avatar
 
Join Date: Dec 2008
Location: Mexico, MO
Posts: 2,509
Points: 50,550
Thanks: 145
Thanked 82 Times in 79 Posts
if it was the hubs wouldn't it only do it when she had it in 4X4:shrug:

Ross
Show-ME Smokers 2.6 modified street pulling truck "The Lone Stroke" My Videos
1996 f350, powerstroke, 4x4, 5-speed, 4.56 gears, Swamps 450/600 injectors, Swamps BFH turbo, Swamps Idm, Swamps tunes, BTS oil, SBC clutch, studs, springs, tubes, air to water intercooler, fuel system, factory rods!


Tow Rig
1997 f350, srw, reg cab, 4x4, 5 speed, 4.10 gears, 3in down pipe, straight pipe, mystery chip.

Becker Brothers Enterprises
pontiacross is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome