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I'd replace the radiator, they aren't expensive and you get the additional transmission cooling. I don't think I've ever heard my fan kick in even when towing through the mountains.
I would check to make sure ac condenser and intercooler are not blocking air from getting to radiator. Plugged with insects, dirt etc.
I thought about this. I was thinking of making a tube that could attach to a hose that would fit in between everything to wash gunk out.
Than I would put a big transmission cooler on it. I have read that larger pans just add more hot fluid to the mix and do not have a huge affect to cooling. Not sure if that is accurate or not though.
Larger cooler is in the plans. As far as the pan not helping with the cooling, I hope that is not the case. Several of the reviews said that the trans temp was lowered.
Drain intercooler.....my 99 had about 2 quarts of oil in intercooler because blow by is plumbed to intake air after filter and before turbocharger. Reason is intercooler is supposed to cool air but if any oil in it that oil gets hot after long hard pulls and won't cool as fast as air. That makes intercooler hot and the air that goes thru it to radiator hot.
I had not heard this before. I will need look into this.
I will look into this. I hope it doesn't force me into a smart phone.
Its cheap and easy. Or you could do the ultra gauge or scan gauge II. That way you are not mounting pods and running wires....annoying.
I did it after my transmission sprung a leak do to the TC coming apart which was awesome (sarcasm). My own personal opinion on this one, you really shouldn't need a bigger trans cooler unless you do some ridiculously heavy towing. My V10 pulled our 8k+ lb travel trailer in 3rd gear and never had an issue. It would seem if you overdo it on the cooler it might take longer for transmission to get up to temp which might be detrimental as well.
How can I check the fan clutch? On my bus, there is absolutely no mistaking when it comes on. It sounds like afterburners kicking in. I have never heard it on the excursion.
Look on the side of the clutch. When the clutch is filled with the viscous fluid (sinestoch, sp?), the hole is usually plugged with a bb. When you over heat the clutch, the area around the bb turns black/blue showing signs of high heat. Also, when the clutch is cold, open the hood and give the fan a spin. What out, those plastic fan blades can be sharp. If it's good, the fan won't spin very much.
The only gauge I have is for the engine. My 2000 doesn't have a transmission temp gauge like my friend's 2003. There was one time coming back from L.A. north on the Grape Vine, things got so hot I was peeing out transmission fluid by the time I got to Santa Clarita. I lost about a gallon of fluid. I did install a larger pan with a port for a sending unit. I will be installing a trans temp gauge soon.
Your 4R100 came from the factory with a test port that is the perfect place to install a trans temp sensor as it has the fluid moving past it continuously. Using the sensor port in the new deeper pan may have the sensor sitting in a stagnate spot with little flow past it or it may be in slow moving boundry flow. Those deeper pans with the "cooling" tubes don't help with trans cooling, the air in that area while running down the road is too hot to provide the needed cooling to the trans fluid, much better off going with a bigger 6.0 type cooler. Mark K, our resident Former Ford Trans Test Engineer has remarked on this in the past.
This is the test port on the driver's side of the trans right above the pan rail. The sensor is that brass fitting with the black and white wires coming out of it.
Your 4R100 came from the factory with a test port that is the perfect place to install a trans temp sensor as it has the fluid moving past it continuously. Using the sensor port in the new deeper pan may have the sensor sitting in a stagnate spot with little flow past it or it may be in slow moving boundry flow. Those deeper pans with the "cooling" tubes don't help with trans cooling, the air in that area while running down the road is too hot to provide the needed cooling to the trans fluid, much better off going with a bigger 6.0 type cooler. Mark K, our resident Former Ford Trans Test Engineer has remarked on this in the past.
This is the test port on the driver's side of the trans right above the pan rail. The sensor is that brass fitting with the black and white wires coming out of it.
I just wanted the extra capacity. I didn't really think it would do much for cooling. I may have found a 6.0 cooler. I just need to check to make sure it's clean. Thank you for the info about the sensor port.
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