Replacing the 195* Thermostat with a Mishimoto 180* Work being done on a 2004 Jeep Grand Cherokee with a 4.7
This is for all 3.7 and 4.7 engines.
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Mishimoto Jeep Grand Cherokee 3.7L/4.7L Racing Thermostat, 1999-2010 https://amzn.to/2MjyhrM
Gates 432262 Water Pump https://amzn.to/2W45BYh
ACDelco 252-813 Professional Water Pump Kit https://amzn.to/2W9kd95
Mopar 53022189AC Water Pump https://amzn.to/2Ub7wc3
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I wish I had your email, simply because you seem to be the foremost authority on these rigs, but my question is; Is it possible for that plastic thermostat housing to become warped? I get a wet spot directly underneath that housing after a drive… but no leaks after it's cooled off
Hi Martin, hope everything is well. Quick question for you as I’m replacing my radiator, thermostat, and radiator hoses on my 4.7L WJ. Do I need to use 195 degree thermostat or would you recommend going for 180? I appreciate your help greatly, your videos are making it possible for me to do all these simple fixes on my WJ!
Alex from Phoenix, AZ
I was under the impression that the thermostats only job is to guarantee a MINIMUM operating temperature and putting in a lower temp thermostat will only guarantee the lower temp will be reached. It will not make the engine run cooler. That would explain why your vehicle takes LONGER to get up to temperature as the thermostat opens at a lower temperature than the stock one.
Martin do you remember if this 180 tstat held your temps at 195 during highway speeds? You only mentioned stop & go traffic. Thanks for your time.
Where is the water pump video
Hello Mr Martin!
My Jeep Grand Cherokee WJ is indicating 75 degrees Celsius and therefore indicates the code P1281, when normally the pointer is at 100ºC. It also showed high gasoline consumption. Today I am willing to replace the thermostat. Big hug and may prosperity always be in your steps. Grateful.
I see you took off the belt tensioner and you said you did.can you not change the thermostat or water pump with it on?or you took it off just so you had more room to work and it could have been left on to change both?
Excellent. Just bought an '07 Jeep GC for my wife, and found it has a bad water pump. After flushing it, before changing the water pump, the thermo doesn't seem to be opening up fast or far enough. (The PO put some Barr's leak lozenges in to stop the pump leak, I guess, but it was pretty crudded up.) This video is just what I needed. Really surprised Chrysler is putting the thermo on bottom. Right up there with no transmission dip stick and an oil filter adapter that leaks. Proof that men in cubicles that have never turned a wrench have no business designing engines. Thanks, Martin, you just made this a lot easier.
Martin my 2000 dodge dakota is over heating! im following your vids since i have the 4.7L in it. I just order the thermostat. If this doesnt fix it. I'll pay to fix it. Im in las vegas also. email me if interested. eislas0311@yahoo.com
Love your videos.
Martin my 2000 dodge dakota is over heating! im following your vids since i have the 4.7L in it. I just order the thermostat. If this doesnt fix it. I'll pay to fix it. Im in las vegas also. email me if interested. eislas0311@yahoo.com
Love your videos.
Great video. Saved me $$$
Im 18 and never really been much of a car guy, but this is helping me so I can learn to repair. Thanks for uploading this.
Hey Martin my old thermostat broke in half and I can't find it do you think it's in the radiator the engine?
Hi, you know what this problem may be?
https://www.youtube.com/watch?v=AMi43pjwoa0
This happens after switching off the engine
Thank you