Overheating and I can’t find out why
Thread Starter
|
New Member
Joined: Feb 2017
Posts: 56
All the garages up this way use one of these:
Stant
Like I said, running it without the thermostat in the middle of summer won’t hurt your engine. Remember the goal is to rule out a problem you’re having trouble with.
If the thermostat is the problem, your engine temps would probably stay around 150ish without the thermostat, your engine would stay in open loop, the MIL would set, and the engine would operate off the VE tables and run rich.
In the mean time, the next time the engine temps start to escalate, turn the heat on full.
It wont be pleasant inside the cab, but this will help lower engine temps and prevent overheat damage.
Stant
Like I said, running it without the thermostat in the middle of summer won’t hurt your engine. Remember the goal is to rule out a problem you’re having trouble with.
If the thermostat is the problem, your engine temps would probably stay around 150ish without the thermostat, your engine would stay in open loop, the MIL would set, and the engine would operate off the VE tables and run rich.
In the mean time, the next time the engine temps start to escalate, turn the heat on full.
It wont be pleasant inside the cab, but this will help lower engine temps and prevent overheat damage.
didn’t know how much I hated outside sounds until I had to do this lol
also, I work at a dealer. I have a single guy that can fix anything....I haven’t had time to hand my vehicle to him yet so I’ve mostly been driving my second car. But I want to fix it myself.
Junior Member
Joined: Jun 2020
Posts: 339
I don’t know what type of thermostat that is. Yes the radiator is hot when it happens. Yes the thermostat is in correctly and opens up at operating temp. When reaching operating temp it does hold steady for a short time but after that it starts rising again.
the only thing I haven’t done is use an infrared thermometer to measure each point. I think I’ll get one tomorrow
the only thing I haven’t done is use an infrared thermometer to measure each point. I think I’ll get one tomorrow
BF Guru
Joined: Dec 2016
Posts: 5,601
From: Moscow, ID
I don’t know what type of thermostat that is. Yes the radiator is hot when it happens. Yes the thermostat is in correctly and opens up at operating temp. When reaching operating temp it does hold steady for a short time but after that it starts rising again.
the only thing I haven’t done is use an infrared thermometer to measure each point. I think I’ll get one tomorrow
the only thing I haven’t done is use an infrared thermometer to measure each point. I think I’ll get one tomorrow
Do you have an IR thermostat? If not get one, they come in handy. Is the radiator reading hot when this happens? Is the thermostat in correctly and working properly? I mean as in closed when cold? Can you see the change in flow as it heats up and the thermostat opens?
Whoops! this was clarified already
Junior Member
Joined: Feb 2019
Posts: 376
From: Iowa
Is your radiator shroud in place and snug against the radiator? When you added the antifreeze, was it a premix or did you mix it yourself? When you replaced the radiator did you get the thicker one for a v6 and not the 4 banger? You did get the water pump with the correct rotation, right?
Thread Starter
|
New Member
Joined: Feb 2017
Posts: 56
Is your radiator shroud in place and snug against the radiator? When you added the antifreeze, was it a premix or did you mix it yourself? When you replaced the radiator did you get the thicker one for a v6 and not the 4 banger? You did get the water pump with the correct rotation, right?
Thread Starter
|
New Member
Joined: Feb 2017
Posts: 56
Update
Think I found out the mysterious overheating issue.
i was using an IR Thermometer on the upper radiator hose and happening to look over at the lower hose when something caught my eye. There was small bubbling coming from the overflow tank hose where it connects right under the radiator cap.
I took a zip tie and it has overheated way slower now. I think I just need to bleed the system one good time or two.
currently doing that.
Think I found out the mysterious overheating issue.
i was using an IR Thermometer on the upper radiator hose and happening to look over at the lower hose when something caught my eye. There was small bubbling coming from the overflow tank hose where it connects right under the radiator cap.
I took a zip tie and it has overheated way slower now. I think I just need to bleed the system one good time or two.
currently doing that.
BF Guru
Joined: Dec 2016
Posts: 5,601
From: Moscow, ID
Update
Think I found out the mysterious overheating issue.
i was using an IR Thermometer on the upper radiator hose and happening to look over at the lower hose when something caught my eye. There was small bubbling coming from the overflow tank hose where it connects right under the radiator cap.
I took a zip tie and it has overheated way slower now. I think I just need to bleed the system one good time or two.
currently doing that.
Think I found out the mysterious overheating issue.
i was using an IR Thermometer on the upper radiator hose and happening to look over at the lower hose when something caught my eye. There was small bubbling coming from the overflow tank hose where it connects right under the radiator cap.
I took a zip tie and it has overheated way slower now. I think I just need to bleed the system one good time or two.
currently doing that.
Thread Starter
|
New Member
Joined: Feb 2017
Posts: 56
Okay so it did still overheat but today I decided to replace the idler pulley because it was worn out and creaking. While there I decided to just possibly tighten every hose clamp. Well the bypass hose from the water pump to the thermostat housing was a little loose at the housing. Wasn’t loose enough to pop off, only loose enough to twist.
it’s such a tight spot to use a screw driver to tighten it fully so it makes sense that was was a bit loose. After some stress over not having a solution I remembered a 10mm can fit the clamp screw so I used a 1/4 ratchet to get in there.....
I ran it for 30 minutes and the temp stayed at the middle.....I’m so dumb....moral of the story make sure all hose clamps are tight
it’s such a tight spot to use a screw driver to tighten it fully so it makes sense that was was a bit loose. After some stress over not having a solution I remembered a 10mm can fit the clamp screw so I used a 1/4 ratchet to get in there.....
I ran it for 30 minutes and the temp stayed at the middle.....I’m so dumb....moral of the story make sure all hose clamps are tight
BF Guru
Joined: Dec 2016
Posts: 5,601
From: Moscow, ID
Okay so it did still overheat but today I decided to replace the idler pulley because it was worn out and creaking. While there I decided to just possibly tighten every hose clamp. Well the bypass hose from the water pump to the thermostat housing was a little loose at the housing. Wasn’t loose enough to pop off, only loose enough to twist.
it’s such a tight spot to use a screw driver to tighten it fully so it makes sense that was was a bit loose. After some stress over not having a solution I remembered a 10mm can fit the clamp screw so I used a 1/4 ratchet to get in there.....
I ran it for 30 minutes and the temp stayed at the middle.....I’m so dumb....moral of the story make sure all hose clamps are tight
it’s such a tight spot to use a screw driver to tighten it fully so it makes sense that was was a bit loose. After some stress over not having a solution I remembered a 10mm can fit the clamp screw so I used a 1/4 ratchet to get in there.....
I ran it for 30 minutes and the temp stayed at the middle.....I’m so dumb....moral of the story make sure all hose clamps are tight
Now get yourself a beer! You deserve it!
Thread
Thread Starter
Forum
Replies
Last Post