Jeep Chrysler thermostat rationality P0128 (how to fix, so easy!)

If the check engine light is on in your jeep, dodge, chrysler, ram, I'll bet it's for this super common issue. It will come up with P0128 thermostat rationality for a bad thermostat, and we show here how to repair this the fast, easy and cheap way! Enjoy the best video, audio, and detail on how to cure this jeep problem. If you have a jk jeep wrangler, you will experience this at some point.
Links to items showcased in video:
The part to fix the problem:
Thermostat and housing: amzn.to/3RfwfLb
Tools used in this repair:
(I am not sponsored by any of these, and if you use these links, it will not cost you anymore than it normally would, but it will help out our channel!)
trim/clip removal tool: amzn.to/3R9pIl6
gloves: amzn.to/3NmVCJM
tatoo sleeves: amzn.to/47QB5Ws
absorbant mats: amzn.to/3Th945S
magnetic lights: amzn.to/3GDdqgc
milwaukee electric ratchet: amzn.to/48dj44e
hose clamp pliers: amzn.to/3RCqOaz
scotchbrite pads: amzn.to/3RfXh55
pick set: amzn.to/489Jkg6
inch pound torque wrench: amzn.to/3uL51V9
right angle screwdriver: amzn.to/3v032fH
Filming equipment:
gopro amzn.to/3t0nY61
light: amzn.to/3NiH51L
hollyland lark microphones: amzn.to/3uSXkMU
Disclaimer: Due to factors beyond the control of the friendly mechanic and the Joy of Wrenching channel (aka C&C Auto LLC), we cannot guarantee against unauthorized modifications of this information, or improper use of this information. The friendly mechanic assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of our videos. Due to factors beyond the control of the friendly mechanic, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in these videos is the sole responsibility of the user and not the friendly mechanic or C&C Auto LLC. Perform at your own risk.

[@tywheeler7131]

Replaced four on this. Going back to the Toyota

[@joyofwrenching]

I tell everyone to buy Toyota so they don't need my mechanic services anymore!

[@joefw2446]

It's an EPA thing. The engine is taking too long to get up to operating temp.

[@joyofwrenching]

Yep, it's all about efficiency with some sensors and computer controls.