Cold weather heater problems
Thread Starter
|
Junior User
Joined: Jan 2006
Posts: 50
Likes: 0
Cold weather heater problems
Help! I have a 2008 F350 Lariat CC, LWB, 4X4, Diesel. 100,000 + miles
In the mornings when the temps dips down below 10 degrees (here in Northern WI, thats every morning) the heater in the truck will not turn on. To get more to the point, the whole indash module is dead including the LCD screen. after the truck is running for about 20 min. then the LCD screen might come on and the heater works. This has happened once down in Texas this early winter when the temp dropped down in the low 40s. I have replaced the indash module and problem was not corrected. It would appear that it is a loose connection somewhere that is temperature sensitive, once the connection warms up something expands and makes continuity. I am getting ready to pull fuses and freeze then check with a meter to see if there is a hairline crack. Does anyone have any ideas on what to check next.
Thank You
Zimmzam
In the mornings when the temps dips down below 10 degrees (here in Northern WI, thats every morning) the heater in the truck will not turn on. To get more to the point, the whole indash module is dead including the LCD screen. after the truck is running for about 20 min. then the LCD screen might come on and the heater works. This has happened once down in Texas this early winter when the temp dropped down in the low 40s. I have replaced the indash module and problem was not corrected. It would appear that it is a loose connection somewhere that is temperature sensitive, once the connection warms up something expands and makes continuity. I am getting ready to pull fuses and freeze then check with a meter to see if there is a hairline crack. Does anyone have any ideas on what to check next.
Thank You
Zimmzam
Thread Starter
|
Junior User
Joined: Jan 2006
Posts: 50
Likes: 0
What is a body controls module? By the way I pulled every fuse out of the fuse box and found 2 separate fuses that cut power to the indash LCD screen, one of them seemed a little loose. While wiggleing it back and forth power was on and off, so I tweeked the ears on the fuse and reinstalled it. The truck will have to sit outside tonight and we will see in the morning if that was it.
Thread Starter
|
Junior User
Joined: Jan 2006
Posts: 50
Likes: 0
Think I found the problem, I think it must have been the loose fuse (#36) the prongs in the fuse box must have been spread too far apart. I twisted the prongs on the fuse and reinstalled it, let the truck sit outside last night and the heater worked fine this morning. It is just hard to believe the torerances involved that cold weather would separate the connection.
Thanks for the help.
KZ
Thanks for the help.
KZ
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,860
From: Frederick, MD
Glad that your appear to have found the issue without too much digging. Way too cold for that.
Trending Topics
Thread Starter
|
Junior User
Joined: Jan 2006
Posts: 50
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
lvin4jc
1994.5 - 1997 7.3L Power Stroke Diesel
6
Apr 19, 2015 04:25 AM
Eric H
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
4
Feb 5, 2011 10:35 AM
