HVAC issue - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 8 Old 06-28-2012, 12:39 PM Thread Starter
Compression Ignition Addict
 
Join Date: Feb 2009
Posts: 920
Thanks: 11
Thanked 13 Times in 11 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
HVAC issue

Hey guys, I hopped in the truck after work today and no matter what setting I put the AC on, it would only blow out of the defrost. No floor, no vents, turned AC off and on, turned truck off and on, nothing but defrost!

WTF could be causing that? and has anybody else had this issue? I don't think it's hot enough out to make anything stick, only about 95 today. It was hotter than that every day last week. Any thoughts, suggestions?

Thanks,
Cliff
WLDHRSE is offline  
post #2 of 8 Old 06-28-2012, 12:49 PM
Compression Ignition Addict
 
southend's Avatar
 
Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
A vacuum leak, or a bad vacuum pump. Not that uncommon. Do you have a 4x4?

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
southend is offline  
post #3 of 8 Old 06-28-2012, 01:14 PM
FJuanfiddy mod


 
Dave's Avatar
 
Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,837
Thanks: 132
Thanked 186 Times in 166 Posts
Mentioned: 1 Post(s)
Quoted: 9 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
Vaccuum leak

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
Dave is offline  
post #4 of 8 Old 06-28-2012, 02:20 PM Thread Starter
Compression Ignition Addict
 
Join Date: Feb 2009
Posts: 920
Thanks: 11
Thanked 13 Times in 11 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
yep. 4x4...
WLDHRSE is offline  
post #5 of 8 Old 06-28-2012, 02:32 PM
Compression Ignition Addict
 
southend's Avatar
 
Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Quote:
Originally Posted by WLDHRSE View Post
yep. 4x4...
Could be your hub seals. Disconnect and plug the two vacuum hoses that run down to your hubs, and see if the ac damper works correctly. That is assuming you have esof.

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
southend is offline  
post #6 of 8 Old 06-28-2012, 02:39 PM
Powerstroke Techie

 
Lilpooh's Avatar
 
Join Date: Aug 2010
Location: Sassamansville, Pa
Posts: 9,787
Thanks: 95
Thanked 195 Times in 157 Posts
Mentioned: 3 Post(s)
Quoted: 0 Post(s)
Feedback Score: 3 reviews
Also check the gray vacuum line near the oil fill tube. It some times gets bumped off either the inline heater hose valve or the nipple on front of the HVAC box.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
Lilpooh is offline  
post #7 of 8 Old 06-28-2012, 02:47 PM
Compression Ignition Addict
 
southend's Avatar
 
Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Quote:
Originally Posted by Lilpooh View Post
Also check the gray vacuum line near the oil fill tube. It some times gets bumped off either the inline heater hose valve or the nipple on front of the HVAC box.
Very true. :thumbup: forgot that.

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
southend is offline  
post #8 of 8 Old 06-28-2012, 04:00 PM Thread Starter
Compression Ignition Addict
 
Join Date: Feb 2009
Posts: 920
Thanks: 11
Thanked 13 Times in 11 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Lilpooh View Post
Also check the gray vacuum line near the oil fill tube. It some times gets bumped off either the inline heater hose valve or the nipple on front of the HVAC box.
That's what it was, thanks buddy! BTW, just changed the oil last night, didn't realize I even touched it!

EDIT: Thanks everybody!
WLDHRSE is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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