Temp gauge. Cold to normal in minutes?

[Mojojojo]

Anyone else's Glad come up to operating temp in just a couple of minutes?

I've never had a vehicle that warms up this fast.

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[Wetrudgeon]

Same. First noticed it with the heater. On a cold start it was blowing hot air within a quarter mile. Then started watching the temp gauge. That little V6 motor gets up to operating temps right now.
Pretty handy on a cold morning.

We trudge on.

 

[Mojojojo]

Yep, definitely not complaining!

 

[Crane]

My JK was the same way, always had the heater blowing like a dragon basically right outta the driveway. Loved it. Can't wait to have that back in a gladdy.

 

[DanW]

Anyone else's Glad come up to operating temp in just a couple of minutes?

I've never had a vehicle that warms up this fast.

Your oil temp gauge is a better indicator. It really takes 15-20 minutes to get full heat...not just the coolant an oil, but to have the block and everything all up to full temp.

Coolant heats up very quickly. Oil takes a bit, but I view about 185 to be when it is fully warmed up, for the most part. And thank goodness....these things have GREAT heat quickly!

Just my 2 cent procedure for longevity....I do not idle my Jeeps to warm them up and the only time I will ever use the remote start is if it is below zero and I´m literally walking toward the Jeep and the windshield is frosted or iced over. That´s it. Otherwise, I start it up, let the rpm come down slightly (really just a matter of 30 seconds or so) and then very gently drive until fully warm. Then I drive normally, and in the case of my JL with the manual, the fun starts....I run it pretty hard, when in the mood. Lol.

Engines can get fuel dilution of the oil if they idle a long time, including non direct injection engines, like the Pentastar. So that is one of probably several reasons I don´t idle much.

Oh, and the ESS is shut off via a Tazer. I´m not a fan of stop/start.

 

[Tsqtomnkaren]

Anyone else's Glad come up to operating temp in just a couple of minutes?

I've never had a vehicle that warms up this fast.

My 2020 Rubi will throw heat by the time I'm out of my 1/2 mile driveway to my mailbox, wife loves it. Happy wife, happy life!!!

 

[Labswine]

Yeah, on a cold winter's day, I love the quick heat up to blow warm air, plus the winter package of heated seats and steering wheel. Overland, cloth interior, ordered 5/19, built 6/19, delivered 7/19.

Interestingly, though, my Wife's '19 Grand Cherokee Ltd. actually takes quite a bit longer to warm up. Both vehicles were built in 6/19 and have the same engines.

 

[Minty JL]

If Jeep does is like GM, its all in the tuning.

It runs lean in open loop to warm up, once it goes into Closed loop it will go over to a normal AFR

 

[Baxter]

I have noticed this on mine.

 

[ShadowsPapa]

If Jeep does is like GM, its all in the tuning.

It runs lean in open loop to warm up, once it goes into Closed loop it will go over to a normal AFR

Lean tends to idle more roughly. It's harder to ignite a lean, cold chamber.

Your oil temp gauge is a better indicator. It really takes 15-20 minutes to get full heat...not just the coolant an oil, but to have the block and everything all up to full temp.

Coolant heats up very quickly. Oil takes a bit, but I view about 185 to be when it is fully warmed up, for the most part. And thank goodness....these things have GREAT heat quickly!

Just my 2 cent procedure for longevity....I do not idle my Jeeps to warm them up and the only time I will ever use the remote start is if it is below zero and I´m literally walking toward the Jeep and the windshield is frosted or iced over. That´s it. Otherwise, I start it up, let the rpm come down slightly (really just a matter of 30 seconds or so) and then very gently drive until fully warm.

Absolutely, and this has really been the "rule" for longer life as long as I've been a mechanic.
My coolant can read normal temp within a mile on a 20-30 degree day, but the oil temperature may not get up there for 10 miles or so if then.

That's exactly how I handle mine - and have for years. Even a carbureted car I'll let it idle for a minute, tops, and drive off.
I had my son's SX4 with the Iron Puke so well tuned on a 20 degree day he could start it, wait just a few seconds, put it in gear and take off - no hesitation, no dying.

 

[Zapper]

I was just thinking that last night- it was a bit chilly and I was happy to get warm air blowing about a block from my house.

Last truck was a Commander with the Hemi and it took a good 10 minutes to start blowing warm air. Prior to that I had an old G-Wagen with a diesel I swapped in and what can I say- bring a coat and some ski pants.

 

[Reddog]

Anyone else's Glad come up to operating temp in just a couple of minutes?

I've never had a vehicle that warms up this fast.

Just because the gauge says it is normal does not mean it is up to operating temp. I installed an LS3 in a JK a few years ago and wanted to know exactly what the temp, oil pressure, trans temp, etc were. Got an AeroForce gauge and was very happy with it. Link: AeroForce Technology, Inc Interceptor Gauges and Pods – AeroForce Technology, Inc.
The temp gauge in the JL and JT represent cold or normal or hot temps but not precise temps. But I agree with you regarding how fast you get heat in the cab on a cold morning. But don't interpet that warm air as normal operating temp in the engine. Try the AeroForce set up and you will see exact readings and then you can decide for yourself what temp is warm enough to start driving on a cold morning. Good luck to you.

 

[ShadowsPapa]

Just because the gauge says it is normal does not mean it is up to operating temp. I installed an LS3 in a JK a few years ago and wanted to know exactly what the temp, oil pressure, trans temp, etc were. Got an AeroForce gauge and was very happy with it. Link: AeroForce Technology, Inc Interceptor Gauges and Pods – AeroForce Technology, Inc.
The temp gauge in the JL and JT represent cold or normal or hot temps but not precise temps. But I agree with you regarding how fast you get heat in the cab on a cold morning. But don't interpet that warm air as normal operating temp in the engine. Try the AeroForce set up and you will see exact readings and then you can decide for yourself what temp is warm enough to start driving on a cold morning. Good luck to you.

I look at the actual engine info pages - which has voltage, oil pressure, oil temperature, transmission temperature - and gasp - the coolant temperature reading.
It's pretty close on mine, and the ESS is another indicator - it won't work if the coolant temp is below a certain temperature. I'd have to look at my T/F list of things for that.
Yes, that thing on the left side of the cluster is a basic indicator only - go/no go and so on. But it's pretty close when it's up to the middle.

And put the HVAC on auto, it really is pretty smart about "can't heat you because we don't have enough heat energy from the engine yet" - but my wife will crank the temperature up and the fan speed believing she'll warm up faster. Nope, sorry - and I poke it right back to auto mode.

 

[Minty JL]

Lean tends to idle more roughly. It's harder to ignite a lean, cold chamber.




Absolutely, and this has really been the "rule" for longer life as long as I've been a mechanic.
My coolant can read normal temp within a mile on a 20-30 degree day, but the oil temperature may not get up there for 10 miles or so if then.

That's exactly how I handle mine - and have for years. Even a carbureted car I'll let it idle for a minute, tops, and drive off.
I had my son's SX4 with the Iron Puke so well tuned on a 20 degree day he could start it, wait just a few seconds, put it in gear and take off - no hesitation, no dying.

Bill,

I will respond to this later when I have more bandwidth. My tuner enlightened me on this lean status when tuning my Chevy Colorado years ago. His credentials and knowledge in OEM operating systems far excess our knowledge..........he straight up works in the binary world of 1's and 0's. He's a legit genius in programming

 

[ShadowsPapa]

Bill,

I will respond to this later when I have more bandwidth. My tuner enlightened me on this lean status when tuning my Chevy Colorado years ago. His credentials and knowledge in OEM operating systems far excess our knowledge..........he straight up works in the binary world of 1's and 0's. He's a legit genius in programming

Not suggesting it's not possible, just that that's the tendency, and things have to be right for a lean cold idle.
That's science...........

I wonder of their idea is to warm up the converters faster with a lean mixture.

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