Need Help Overheating
Thread Starter
|
New User
Joined: Mar 2016
Posts: 22
Likes: 0
Need Help Overheating
While driving home last night my truck started to overheat, the temp jumped from where its been running at lately (around 210) to 240, I stopped and took it easy getting home. This morning I sprayed down the radiator to clean out any mud that may have gotten in it from field work at the office (its always going through some pretty deep stuff). It ran fine for about an hour then it started to over heat again, I got it home and did a complete radiator flush and then did a test drive. It still overheated so I decided to try something, I released the pressure in the system by unscrewing the cap partially and drove it around again, this time it didn't overheat, put the cap back on and the temp jumped right back up to 240. Any ideas??? Tomorrow I plan on calling my friend that works for international to see if he has any ideas.
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
cool,
Before spending any $ I would check the sensors out to make sure they are reading correctly.
With you Torque Pro app try data logging:
Engine Oil Temp (EOT)
Coolant Temp (ECT)
Intake Air Temp #1
Intake Air Temp #2
on a cold engine in the morning with the key on engine off (KOEO).
The EOT & ECT should be within a few degrees of each other and close to air intake temps after she sits overnight.
Before spending any $ I would check the sensors out to make sure they are reading correctly.
With you Torque Pro app try data logging:
Engine Oil Temp (EOT)
Coolant Temp (ECT)
Intake Air Temp #1
Intake Air Temp #2
on a cold engine in the morning with the key on engine off (KOEO).
The EOT & ECT should be within a few degrees of each other and close to air intake temps after she sits overnight.
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
No problem, we have all been there before, plenty of great knowledgeable folks on this site.
Was the 240 degree reading for coolant temp or oil temp?
Did you hear the fan kick in?
Was the 240 degree reading for coolant temp or oil temp?
Did you hear the fan kick in?
Trending Topics
Thread Starter
|
New User
Joined: Mar 2016
Posts: 22
Likes: 0
The 240 was on the coolant and the oil was just a little higher like 245
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
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
no problem,
since you are new, we need to get you up to 20 posts so you can send & receive messages. You're about 1/4 of the way there.
It would be helpful to know about your setup. So take a bunch of posts to give some additional info about your setup:
year
miles
EGR still installed or an EGR delete?
was the oil cooler ever changed?
what type of coolant?
stock injectors?
stock programming or using a tuner?
Stock head studs?
since you are new, we need to get you up to 20 posts so you can send & receive messages. You're about 1/4 of the way there.
It would be helpful to know about your setup. So take a bunch of posts to give some additional info about your setup:
year
miles
EGR still installed or an EGR delete?
was the oil cooler ever changed?
what type of coolant?
stock injectors?
stock programming or using a tuner?
Stock head studs?
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
Do you have the electrical connector to your EGR plugged in?
If the wire is unplugged (regardless of whether you have an EGR delete or not) can mess with the PCM's ability to control the FAN.
Your FAN should sound like a JET engine once the coolant temps get out of normal range, so having to look at the FAN to see it's turning (while idling in your driveway) does NOT provide the key piece of info.
You CAN monitor your FAN speed via ODB, which would be very important, if it reads 2000 RPM but you don't hear it - you have a fan control problem... Either the EGR valve signal is not reaching the PCM or the wire is chaffed where it runs over the fan blade...
If the wire is unplugged (regardless of whether you have an EGR delete or not) can mess with the PCM's ability to control the FAN.
Your FAN should sound like a JET engine once the coolant temps get out of normal range, so having to look at the FAN to see it's turning (while idling in your driveway) does NOT provide the key piece of info.
You CAN monitor your FAN speed via ODB, which would be very important, if it reads 2000 RPM but you don't hear it - you have a fan control problem... Either the EGR valve signal is not reaching the PCM or the wire is chaffed where it runs over the fan blade...