What did you do to your TJ today?

[All 4 Wheelin']

So I’ve been having cooling system issues again. Not the typical kind, instead of overheating I’m unable to reach operating temperature. Lol Last time this happened it was a faulty thermostat that had failed, so I assumed it was the same thing this time. I purchased a new thermostat housing , gasket and thermostat in anticipation of the job. Today I pulled the old housing off and the thermostat was fine. I replaced it along with the housing and filled it back up with coolant and I’m still not getting an increase in temperature. Back to the drawing board I guess.

Coolant temp sensor

 

[macleanflood]

Last time this happened it was a faulty thermostat

I replaced my thermostat with a Napa and same issue. Pulled it out. Bought one from O'Reilly's and Advanced Auto. Tested all three 195 degree thermostats and they all started opening around 130 to 155.

Bought a Robert Shaw sourced from Flowkooler and zero issues since.

-Mac

 

[mjonesjr84]

So I’ve been having cooling system issues again. Not the typical kind, instead of overheating I’m unable to reach operating temperature. Lol Last time this happened it was a faulty thermostat that had failed, so I assumed it was the same thing this time. I purchased a new thermostat housing , gasket and thermostat in anticipation of the job. Today I pulled the old housing off and the thermostat was fine. I replaced it along with the housing and filled it back up with coolant and I’m still not getting an increase in temperature. Back to the drawing board I guess.

What temp thermostat are you putting in?

 

[kincaid.0678]

I replaced it originally when the first replacement thermostat failed. I rebuilt this engine a couple years back and put a new thermostat in thinking new = better but apparently that doesn’t always compute lol if I turn the key to accessories the temperature will read correctly until I start the engine and the water pump kicks in then back down the 150 ish within a minute.

Coolant temp sensor

 

[kincaid.0678]

What temp thermostat are you putting in?

195*

 

[kincaid.0678]

I replaced my thermostat with a Napa and same issue. Pulled it out. Bought one from O'Reilly's and Advanced Auto. Tested all three 195 degree thermostats and they all started opening around 130 to 155.

Bought a Robert Shaw sourced from Flowkooler and zero issues since.

-Mac

I’m with you Mac. I almost tossed this one in a pot to test it but was racing the clock between jobs to get it back together so I could head to my second job on time. I saved the other one so I can test it anyway.

 

[Abendage]

So I’ve been having cooling system issues again. Not the typical kind, instead of overheating I’m unable to reach operating temperature. Lol Last time this happened it was a faulty thermostat that had failed, so I assumed it was the same thing this time. I purchased a new thermostat housing , gasket and thermostat in anticipation of the job. Today I pulled the old housing off and the thermostat was fine. I replaced it along with the housing and filled it back up with coolant and I’m still not getting an increase in temperature. Back to the drawing board I guess.

What temp is it getting to? Do you have any sort of OBD tool to see the exact reading? May be a faulty sensor as there is literally nothing other than the thermostat that can cause that, short of being in the artic.

 

[mjonesjr84]

Need to hook a scanner up or use an OBD2 bluetooth dongle to use the Torque app on your phone. This will show exactly what your ECM is reading from the temp sensor.

 

[ColoJeep]

I was going to say use an I.R. temp gun and read your temps. on the head and upper and lower radiator hoses. Keep us in the loop to what you find.

 

[Kiwi TJ]

Couple more things off the check list…so almost prepped for the 2 week road trip to the sth island again. Oil change this weekend.

Let’s be honest though…. I’ll probably create another list before I go in January

 

[kincaid.0678]

What temp is it getting to? Do you have any sort of OBD tool to see the exact reading? May be a faulty sensor as there is literally nothing other than the thermostat that can cause that, short of being in the artic.

It gets to 150 ish while the engine is running. If I turn off the engine and then turn the key back on to the on position the gauge will read the normal 200 until I start the engine and the water pump starts to flow. I’m thinking Mac might be onto something with the shitty thermostat opening too soon. I guess I’ll have to spend a little time and dig into it some more when time allows.

 

[FarFire70]

It gets to 150 ish while the engine is running. If I turn off the engine and then turn the key back on to the on position the gauge will read the normal 200 until I start the engine and the water pump starts to flow. I’m thinking Mac might be onto something with the shitty thermostat opening too soon. I guess I’ll have to spend a little time and dig into it some more when time allows.

Until you finish your research, can't hurt to run without a thermostat in these temps...

That may also help to test the coolant temp sensor is reporting accurate info.

 

[John Cooper]

Couple more things off the check list…so almost prepped for the 2 week road trip to the sth island again. Oil change this weekend.
View attachment 660258
Let’s be honest though…. I’ll probably create another list before I go in January

Fancy hand writing for a Hobbit.........especially while standing on a ladder to reach the top .......

 

[TheBoogieman]

Fancy hand writing for a Hobbit.........especially while standing on a ladder to reach the top .......

I was thinking the same thing. He must still be 6" too short to drywall that ceiling.

 

[Kiwi TJ]

Fancy hand writing for a Hobbit.........especially while standing on a ladder to reach the top .......

Short-hand …
I am an ex signwriter so when I made my to-do list sign I made it so it’s easily taken down for that exact reason

 

[John Cooper]

Alright @Kiwi TJ I just want to know which one is really you?????

https://www.microwrestling.com/

 

[Kiwi TJ]

Alright @Kiwi TJ I just want to know which one is really you?????

https://www.microwrestling.com/

I don’t do that anymore since I had the accident with the lycra ….
I’m trying hobbit throwing now … ! Haha

 

[John Cooper]

Ordered the Barnes no body lift skidplate. When they get the engine skid in i will order it.

Now I could be like @macleanflood and tell y'all some half baked story about my wife getting in the safe and taking my stash and getting a tattoo.



But that ain't how it went down at all.

I manned up and did it behind her back and she will never have a clue.......... I hope.........

 

[lBasket]

Ordered the Barnes no body lift skidplate. When they get the engine skid in i will order it.

Now I could be like @macleanflood and tell y'all some half baked story about my wife getting in the safe and taking my stash and getting a tattoo.



But that ain't how it went down at all.

I manned up and did it behind her back and she will never have a clue.......... I hope.........

You better cook something real good tonight

 

[John Cooper]

You better cook something real good tonight

Cube steak, mashed potatoes, biscuits and gravy..........already on it!!!!!