New member with heater issues
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New User
Joined: Jan 2014
Posts: 2
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New member with heater issues
Hi - I have a 2007 F250 Powerstroke. (I bought it used late last year) I LOVE my truck! I have never had a diesel before so I thought my issues were normal ones. First one it the heater. I do plug my truck in and leave it all night. We are having unusually cold weather about 10 degrees right now. But even before that the heater in the cab sometimes will blow warm air then turn cold then warm again or may be warm the entire drive, or never get warm at all. It does not ever blow warm air unless it is moving no matter how long I let it idle.
Next is the fact that since it is very very cold right now and I drive it to work I can't plug it in. Do you have any tricks to get it to start in the afternoon without having to jump it?
FYI - I am one of those females that knows NOTHING about trucks or mechanic-ing.lol
Please help
Next is the fact that since it is very very cold right now and I drive it to work I can't plug it in. Do you have any tricks to get it to start in the afternoon without having to jump it?
FYI - I am one of those females that knows NOTHING about trucks or mechanic-ing.lol
Please help
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Batteries need to be load tested, alternator needs to be tested, clean all battery terminals, grounds, then start checking for codes. Scan gauge 2 or torque app and iPhone would be good bets. It should start but they do take a while to warm, so a winter front, and running a winter weight 10w30 oil or a synthetic 5w40. Once you have a scangauge or such, we can check water temps to the degree they are running, could be thermostat? When was last time coolant was flushed and changed? When was serpentine belt changed? Your going to have to read up in huge tech folder and get comfy with your truck and how everything works. Otherwise, a good reliable diesel mechanic you can trust is in order.
Cargo Master
Joined: Oct 2009
Posts: 2,283
Likes: 0
From: missouri
Check coolant level. Make sure it is at the minimum mark. If too low it will cause your heater not to blow out hot air. Could be water pump impeller broke, really need to check fluid first then try to get a gauge to read coolant temp. But yea I agree, batteries sound shot. Get them load tested seperatly. If you continue to drive it with bad batteries you will be paying out your nose on a new ficm and possibly injectors not to mention the tow charge you will be needing when you get stranded.
Lead Driver
Joined: Sep 2012
Posts: 7,830
Likes: 96
From: Manteca,Ca
X2 on the Batteries and Thermostat, look at the passenger side heater control valve make sure the swing arm moves and the little grey hose is plugged in , passenger floor board look up into the firewall the grey line hooks into a diafram make sure it plugged in there too.
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