Help. On the verge of despair 1FZ-FE overheating on flat highway over 60 miles

[Desert Dino]

The tap water isn't even that big of a concern. Yes, it's better to use distilled to fill the system if you have it, but how much solid material do you think is in your tap water? And flushing with distilled is a hilarious notion. People act like tap water is going to plug your cooling system on contact. Think logically.

x187 on temps sound fine. Save the despair for when you actually have an issue.[/QUOTE

Tap water in Israel are very hard and salty total no no for engine
coolant

 

[Desert Dino]

actually not!

Can you explain??

 

[-Spike-]

You said the PO flushed the system with tap water. YOU tore apart the entire system, what did YOU fill it with?

All this is beside the point, your temps are fine.

 

[Desert Dino]

He says the PO used tap water for a flush. Unless he flushed it with sand, it's a non-issue. And I suspect Israel has the tech to at least allow their water to sit awhile and let the solids settle out before they use it. Hell, they might even have water treatment plants.

I said PO used tap water as a coolant

 

[Desert Dino]

You said the PO flushed the system with tap water. YOU tore apart the entire system, what did YOU fill it with?

All this is beside the point, your temps are fine.

if you look in the first post you will find that I am using Toyota red coolant

 

[retrofive]

I still think this is non-issue and the final couple things to check have been stated in here. A friend has been running around in his truck summer and winter hitting 210* regularly. He had done all he PM and turned out to be the t-stat. And if you really want to dive into possible heating issue (which I don't think you have) bring up @NLXTACY overheating thread. There is at least 50pages of more troubleshooting to go through

 

[Desert Dino]

Remember his location... Isreal. I don't know the tap water quality there, but could be a lot worse than some places here. I don't know.

LOL

Israel is the source of desalination technology all tap water is safe to drink no sediments and all of it come from the
Mediterranean sea

Israel Proves the Desalination Era Is Here

 

[-Spike-]

Things I may do
Engine cooling system flush PO used tap water
i was advised against this!!

You'll have to pardon me for misunderstanding the above post.

Tap water in Israel are very hard and salty total no no for engine
coolantView attachment 1597616 View attachment 1597617 View attachment 1597618

LOL

Israel is the source of desalination technology all tap water is safe to drink no sediments and all of it come from the
Mediterranean sea

Israel Proves the Desalination Era Is Here

Man it's hard to follow you.

if you look in the first post you will find that I am using Toyota red coolant

The first post, and all the rest, fail to mention if you used distilled water to dilute the coolant. I did assume as much early on, but wanted to clarify. This whole thing has gotten tiring. Good luck.

Wait. You did dilute the coolant, right?

 

[retrofive]

You'll have to pardon me for misunderstanding the above post.






Man it's hard to follow you.



The first post, and all the rest, fail to mention if you used distilled water to dilute the coolant. I did assume as much early on, but wanted to clarify. This whole thing has gotten tiring. Good luck.

Tiring? but, but..., but...... we are only page 2? Am'i'ight @NLXTACY

 

[-Spike-]

Tiring? but, but..., but...... we are only page 2? Am'i'ight @NLXTACY

LOL, I guess I have a low tolerance. You won't find me in many long threads.

 

[thatcabledude]

OP,
What do you mean when you say you
“Measure by ODB”?

 

[flintknapper]

OP,
What do you mean when you say you
“Measure by ODB”?

OBD (On Board Diagnostics)

 

[thatcabledude]

OBD (On Board Diagnostics)

It’s a ‘94 though

 

[gummycarbs]

It’s a ‘94 though

Dino has a reader for "Ol' Dirty Bastard" 1. He made a thread about it earlier. I think it works with an Android app.

 

[landtank]

Can you explain??

fan clutch operation is critical to cooling our engines at highway speeds.

 

[bigredmachine]

for the higher temps at low speed why not just add an electric fan with a manual switch so you can turn it on and off whenever you need. could also go with a lower temp thermostat rockauto has 170 degree available
1994 TOYOTA LAND CRUISER 4.5L L6 Thermostat | RockAuto

 

[Desert Dino]

OP,
What do you mean when you say you
“Measure by ODB”?

my rig is 1994 OBD1 and i use TOYOBD1 Bluetooth dongle

you can see the engine temp 84-86 C and all the rest of date it gives in video it setup to Km/C but you can set it to miles/F
fuel consumption is calculated and loged in miles/gallon

Video 3 11 2017, 12 27 02

New improved OBD1 dongle YOUOCOM that can read CEL codes and erase them is now on the market (70$)

Software for Android is free

 

[scottryana]

Fan clutch. It isn't that abnormal but a little high. I would just do the fan clutch it is an easy 30min fix if it works great if not it isn't a big deal and it is ruled out.

 

[Jgrauman]

my rig is 1994 OBD1 and i use TOYOBD1 Bluetooth dongle

you can see the engine temp 84-86 C and all the rest of date it gives in video it setup to Km/C but you can set it to miles/F
fuel consumption is calculated and loged in miles/gallon

Video 3 11 2017, 12 27 02

New improved OBD1 dongle YOUOCOM that can read CEL codes and erase them is now on the market (70$)

Software for Android is free

View attachment 1597809

Do you know if the old one can be updated?

 

[Desert Dino]

Do you know if the old one can be updated?

not updateable its new hardwere