Engine Overheating - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by broth, this thread has received 5 replies and been viewed 2354 times.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 11-26-2012, 04:10 PM Thread Starter
Member
 
Join Date: Jan 2009
Posts: 278
Points: 24,550
Thanks: 33
Thanked 10 Times in 10 Posts
Engine Overheating

I have an 02 with 6 speed manual. When toying my 40' Toyhauler the engine seems to be overheating when pulling a hill. I do not have a gauge but the dash one goes up to hot then back down then back up to hot and sometimes doesn't even get hot at all? Very wierd as I have not seen many 7.3 with an overheating problem. The enigine light never comes on but I back out of it before it stays in the red too long.

I have had the Thermostat replaced, water pump and fan checked. Any other ideas?

Also everynow and then seems like it has low power? Just once in awhile it will seem like truck has half the power on a steep hill then the next steep hill seems to be back to normal. Not sure if these are related?

Thanks in advance!
broth is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 11-27-2012, 02:25 AM
Member
 
bpogue's Avatar
 
Join Date: Feb 2007
Location: Missouri
Posts: 391
Points: 56,898
Thanks: 124
Thanked 28 Times in 27 Posts
Garage
Overheating and low power can be caused by low boost. Listen real close while pulling for a whistling sound and check for boost leaks. A pyro gauge would be useful to check the boost.

1996 Int 4700, 175hp DT466, 5 speed, 2x rear end, service body

2001 F350 SRW flatbed, 4x4, crew cab

1978 International F2275 Dump Truck

1996 NH LX665, steel tracks on foam filled tires

2005 Tackeuchi TB145

2003 Takeuchi TL150

Case 850B Highlight, 4 way bucket
bpogue is offline  
post #3 of 6 (permalink) Old 11-27-2012, 06:02 PM Thread Starter
Member
Threadstarter
 
Join Date: Jan 2009
Posts: 278
Points: 24,550
Thanks: 33
Thanked 10 Times in 10 Posts
Yeah I have a boost gauge and boost is fine.

Almost like an injector isnt working right or something.

I am almost thinking the fan isn't kicking on right?
broth is offline  
post #4 of 6 (permalink) Old 12-02-2012, 05:42 AM
Junior Member
 
Justin@DP-Tuner's Avatar
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 49
Points: 4,635
Thanks: 0
Thanked 12 Times in 12 Posts
Do you have a way to see what the PCM is seeing? Such as a monitoring device? This may help with the power issue.

Also, since the 7.3 doesn't have a big reputation for overheating it is unlikely that it actually is. You may want to run a manual temperature gauge into the system and see what is really going on.

DP-Tuner
For Your Tuning Needs
www.dp-tuner.com
Like us on Facebook!

Justin Bochmann
Sales and Technical Support
828-221-0076 ext.804
[email protected]
post #5 of 6 (permalink) Old 12-02-2012, 10:57 PM
powerstroke expert
 
Join Date: Aug 2005
Location: Indiana
Posts: 60
Points: 4,345
Thanks: 0
Thanked 1 Time in 1 Post
seldom do 7.3 di engines have an overheat issue unless it has a faulty t-stat or if someone used too much silicon causing the t-stat or oil cooler to clog, the most common cause is usually debris built up in between to a/c condenser and radiator. in few cases i have seen head gasket failure if the engine is heavily modified, you may also want to check the pop off pressure of the coolant cap.

tuning and repair solutions
7.3sootmonster is offline  
The Following User Says Thank You to 7.3sootmonster For this addition to TDG:
broth (12-04-2012)
post #6 of 6 (permalink) Old 01-09-2013, 11:25 PM Thread Starter
Member
Threadstarter
 
Join Date: Jan 2009
Posts: 278
Points: 24,550
Thanks: 33
Thanked 10 Times in 10 Posts
New fan clutch and cleaning of the radiator seemed to be the fix. Thanks for all the input!
broth 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



Similar Threads
Thread Thread Starter Forum Replies Last Post
6L Diesel Engine Overheating 6LBoss 2003-2007 6.0L Power Stroke 4 06-01-2010 05:52 AM
overheating bootcamp 2003-2007 6.0L Power Stroke 18 08-04-2009 05:49 PM
Engine Overheating rwhite 5.9L Cummins (1998.5-2002) 5 01-02-2009 08:39 PM
07-8-4 Diesel Engine - Overheating With A Snow Plow Installed On Vehicles Without The Squatch Ford Oasis requests 0 04-17-2007 02:57 AM
06-24-12 6.0l Engine Overheating With A Snow Plow Installed On Vehicles Without The F Squatch Ford Oasis requests 0 03-22-2007 02:51 AM

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