6.4L Engine Temp Slow Coming Up - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by Roach, this thread has received 11 replies and been viewed 8016 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 01-16-2008, 12:07 AM Thread Starter
Roach
 
Roach's Avatar
 
Join Date: Dec 2008
Location: Illinois
Posts: 89
Points: 3,280
Thanks: 0
Thanked 2 Times in 2 Posts
6.4L Engine Temp Slow Coming Up

I have a skoesh over 5000 miles on the truck, and when the temp is 20 deg. or a little more, the engine temp is slow to come up, and the heater won't produce heat until it is up somewhat. I asked the dealer, and they said Ford is aware of a problem, and they are working on it. The engine temp isn't even up to the bottom of the normal range, but the trans temp is up about 1/4 the way. Are the guages funky, or is there another problem?

2008 F-350 Lariat Dually, 4X4, Long Bed, Sirus Radio, Prestige Remote Start/Turbo Timer, Retrax Bed Cover, Power Tailgate Lock, Pillar Guages, Pyro, Boost, Trans Temp., chrome door handles, chrome fuel filler door.
Roach is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 01-16-2008, 04:16 AM
 
Join Date: Mar 2006
Posts: 1,592
Points: 53,197
Thanks: 0
Thanked 1 Time in 1 Post
there are some reports of the thermostat"s sticking open causing a slow to warm up,i have not heard anymmore about it and seen no tsb"s. on your next cold start-up,start the engine then get out and grab the upper radiator hose.
feel the hose to see if coolant is flowing threw it. that will tell you if the thermostat"s are stuck open.
imported_diesel71 is offline  
post #3 of 12 (permalink) Old 01-16-2008, 02:32 PM
Now Cummins Powered
 
MRBOHN23's Avatar
 
Join Date: Dec 2008
Posts: 234
Points: 12,142
Thanks: 39
Thanked 3 Times in 3 Posts
Garage
I've noticed the exact same thing!!! This is my first diesel, so I thought it was normal. Guess it isn't. I'll contact my dealership and ask them about it. Thanks for the info Roach.

2004.5 Dodge 2500 Quad Cab Cummins Powered, Laramie, Tow Pkg., Snow Plow Pkg., 4.10 Rears.

2008 Ford F-250 Crew Cab Lariat, 6.4 Powerstroke, Snowplow Prep, Automatic 3.73 posi, 18 inch wheels, SOLD!!!!
MRBOHN23 is offline  
post #4 of 12 (permalink) Old 01-16-2008, 02:52 PM
Now Cummins Powered
 
MRBOHN23's Avatar
 
Join Date: Dec 2008
Posts: 234
Points: 12,142
Thanks: 39
Thanked 3 Times in 3 Posts
Garage
I just called my service tech and he said it can be normal. He said for me to stop by next time im in the area, but that he doesn't think there is anything abnormal with the motor taking much longer to heat up than the tranny.

2004.5 Dodge 2500 Quad Cab Cummins Powered, Laramie, Tow Pkg., Snow Plow Pkg., 4.10 Rears.

2008 Ford F-250 Crew Cab Lariat, 6.4 Powerstroke, Snowplow Prep, Automatic 3.73 posi, 18 inch wheels, SOLD!!!!
MRBOHN23 is offline  
post #5 of 12 (permalink) Old 01-16-2008, 03:30 PM Thread Starter
Roach
Threadstarter
 
Roach's Avatar
 
Join Date: Dec 2008
Location: Illinois
Posts: 89
Points: 3,280
Thanks: 0
Thanked 2 Times in 2 Posts
I am judging the time to warm up with the time that it took to warm up my '05 6.0. I am going to be going to North Dakota in the near future, and I definately want heat coming out of the heater. The engine temp guage was bad in my '05 and gave a false high temp reading, therefore the fan kicked on, and lost alot power until the needle came back down to normal. I was wondering if the temp guage is maybe bad in this one, and giving the opposite indication. I really do love this truck, except for the fuel mileage.

2008 F-350 Lariat Dually, 4X4, Long Bed, Sirus Radio, Prestige Remote Start/Turbo Timer, Retrax Bed Cover, Power Tailgate Lock, Pillar Guages, Pyro, Boost, Trans Temp., chrome door handles, chrome fuel filler door.
Roach is offline  
post #6 of 12 (permalink) Old 01-17-2008, 09:09 PM
Senior Member
 
Join Date: Dec 2008
Location: sacramento ca
Posts: 377
Points: 18,693
Thanks: 0
Thanked 2 Times in 2 Posts
In cold temps at a idle it will take forever to warm up. I would use the high idle and see if it warms up faster. Not sure on the 6.4s but on my 6.0 All I had to do was connect 2 wires under the dash to get the high idle to work. I used the one of the AUX switches.

07 3500 5.9 QC LB AT 4x4 Edge Additude w/hot unlock S&B intake 5" Magnaflow exhaust
Trucks Sold
93 F250 7.3 Turbo SC LB 5 Speed 4x4 XLT Stock
2006 F350 6.0 CC LB AT 4x4 King Ranch SCT etc
2003 F350 7.3 SC LB AT 4x4 XLT H2E and more
1993 F250 7.3 LB IDI 2wd 5 speed XL Pump turned up
ontherks is offline  
post #7 of 12 (permalink) Old 01-17-2008, 11:35 PM
 
Join Date: Sep 2007
Posts: 23
Points: 201
Thanks: 0
Thanked 0 Times in 0 Posts
Diesels take 4-5 miles to warm up. I have a 95 F-250 PSD and it takes a few miles to warm up. My diesel VW Jetta takes 5 miles to warm up. Get grill plugs to cut off cold air over the engine, or block the air off with cardboard or solid fabric (vinyl) or something, to allow a faster warmup. And plug her in to warm the block up before you go, it will speed warmup and give better oil flow sooner.
thegrinch is offline  
post #8 of 12 (permalink) Old 01-18-2008, 11:36 PM
 
Join Date: Jan 2008
Posts: 118
Points: 431
Thanks: 0
Thanked 0 Times in 0 Posts
my 6would be throwing heat in a few minutes at idel even in 20 degree temps..if your engine isnt warming up,,it needs a thermostate,,i wouldnt even mess with the atealer. just buy one and throw it in there.
fred43 is offline  
post #9 of 12 (permalink) Old 01-19-2008, 02:10 AM
 
Join Date: Mar 2006
Posts: 1,592
Points: 53,197
Thanks: 0
Thanked 1 Time in 1 Post
the 6.4 has 2 thermostat"s in 1 housing so he would need 1 with bypass and 1 without bypass and a housing gasket.
imported_diesel71 is offline  
post #10 of 12 (permalink) Old 01-20-2008, 09:13 PM
 
Join Date: Nov 2007
Posts: 3
Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Heat

I have the same problem, the truck takes more than 5 miles to warm up. All I can say is thank GOd the heated seats work real well. If I knew this was going to be a problem I would have gotten the quick heat feature. I should have known something if they offered that. First Diesel, still learning. Ford is still winning, first ford in over 20 years.:shrug:
twinsberry 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