Engine Temperature Issue - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 04-08-2013, 08:04 AM
Powerstroke.org Rookie

Join Date: May 2012
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Engine Temperature Issue

My truck has been disabled due to a huge HPOP oil leak for about two months. It is offseason for racing, so thankfully I have not needed the truck. I had time to fix the leak on Saturday only to leave it with a small fuel leak.

When I parked the truck there were no temperature issues. The truck would sit on the "R" in NORMAL or down on the "O" if I was babying it. My first test drive after fixing the oil leak resulted in temps around the "L". This was unusual, but I did have my car hauler hooked up. I had a car on the hauler on Sunday and the temps were past the "L" but still under the red marker and "H". Also, the needle has a tendance to "dance". It will jump from the "L" to about half way between "L" and "H" and slowly creep back down.

The only outstanding circumstances are that the water pump seemed to be leaking last summer. I wasn't sure if it was the neck on top or the weep hole that was leaking. I changed the entire neck, thermostat and oring. The leak from the neck stopped, and I would have the occasional leak from the pump still. I top my coolant supply and add additive (and test) as necessary. After the neck/coolant change the truck temps were fine.

My inclination is to replace the water pump. I'm wondering what you guys think. Should I change the sender first in case it is bad? Ideas?

Thanks in advance.

Reply With Quote Quick reply to this message
Sponsored Links
Old 04-12-2013, 01:41 AM
Powerstroke.org Fanatic

Join Date: May 2011
Posts: 131
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
An occasional leak from the water pump sounds like the water pump is going out. It's not unusual for a faultering pump to leak intermittently, probably because of a seal sometimes holding and sometimes not. I would change it before it leaves you on the road somewhere.

If the gauge is moving around, it sounds like a loose fitting. Or, it could otherwise be going out. If you have an infrared temperature gun, I would check the top radiator hose when the gauge seems to be indicating a near-overheat. If the hose is showing around 200F or 220F, it seems the gauge is reading too high for some reason. I'd wiggle the wires and if no improvement, change the sender.

If you had an old thermostat, I'd recommending you changing that. However, yours is relatively fresh, so is less likely to be a problem.
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What state or province do you live in?
Security Question
*Required, this field is not shown to others. Enter the last two characters of the word "Powerstroke"
Security Question #2
*Required, this field is not shown to others. "While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State the animal mentioned in the sentence above."
Please select your insurance company (Optional)


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
Display Modes

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

All times are GMT -8. The time now is 04:33 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.