No tempature issue
Thread Starter
|
4th Gear
Joined: Feb 2025
Posts: 4
Likes: 0
No tempature issue
Hey everyone , I have a 1992 f150 with a 5.8l, couple weeks ago I changed the thermostat and it was working for a couple days then one day my temp gauge wouldn’t move at all and I had no heat in the truck, when I opened the rad cap after starting up the truck , the water pump was already moving water through out the radiator , I’m kinda lossed hoping someone can help me out on here, cause to me it sounds like a stuck therm
Last edited by Olbu3; Feb 13, 2025 at 10:33 AM.
Thread Starter
|
4th Gear
Joined: Feb 2025
Posts: 4
Likes: 0
does the sending unit have and effect on temp for the heat in the truck, thought it was just wired into the gauge, also topped off on coolant
Fleet Mechanic
Joined: Nov 2022
Posts: 1,697
Likes: 416
The heater core is always flowing coolant, it could be low, or there's air trapped in it. Maybe your radiator cap isnt functioning properly, or the hose to the reservoir is blocked. Verify the blend door is working as well.
Thread Starter
|
4th Gear
Joined: Feb 2025
Posts: 4
Likes: 0
No, it controls the gauge, which yours doesn't seem to work.
The heater core is always flowing coolant, it could be low, or there's air trapped in it. Maybe your radiator cap isnt functioning properly, or the hose to the reservoir is blocked. Verify the blend door is working as well.
The heater core is always flowing coolant, it could be low, or there's air trapped in it. Maybe your radiator cap isnt functioning properly, or the hose to the reservoir is blocked. Verify the blend door is working as well.
Hotshot
Joined: Jul 2020
Posts: 10,542
Likes: 2,666
From: Near Salt Lake City
Did you use a "fail safe" thermostat?
I have had bad luck with those Fail-Safe thermostats, doing exactly what yours has done
They get overheated once and then stick open
They overheat once during the initial warmup period even if the motor is absolutely full of coolant has been my experience
I will not install one of those Fail safe branded ones anymore
Fun stuff
I have had bad luck with those Fail-Safe thermostats, doing exactly what yours has done
They get overheated once and then stick open
They overheat once during the initial warmup period even if the motor is absolutely full of coolant has been my experience
I will not install one of those Fail safe branded ones anymore
Fun stuff
Trending Topics
Hotshot
Joined: Jun 2015
Posts: 12,878
Likes: 2,446
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread Starter
|
4th Gear
Joined: Feb 2025
Posts: 4
Likes: 0
Did you use a "fail safe" thermostat?
I have had bad luck with those Fail-Safe thermostats, doing exactly what yours has done
They get overheated once and then stick open
They overheat once during the initial warmup period even if the motor is absolutely full of coolant has been my experience
I will not install one of those Fail safe branded ones anymore
Fun stuff
I have had bad luck with those Fail-Safe thermostats, doing exactly what yours has done
They get overheated once and then stick open
They overheat once during the initial warmup period even if the motor is absolutely full of coolant has been my experience
I will not install one of those Fail safe branded ones anymore
Fun stuff
Thread
Thread Starter
Forum
Replies
Last Post
RandyPDX
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
20
Mar 26, 2023 02:21 PM