Automotive 01 02 03 04 Jeep Grand Cherokee 4 7l Hydraulic Coolingођ I’m having an overheating problem in my 2001 grand cherokee w 4.7l v8. from what i've read on the forums, the fault seems to point to the hydraulic fan solenoid. when cruising above 35 40 mph, it cools ok. if air conditioner is on, or else when engine temp around 220 f or more at idle, the fan spins, but only very slowly. Also, show how to make a modification to the solenoid to increase the fan rpm by 100%. in 2001 jeep grand cherokee with 4.7l was equipped with a hydraulic co.
The Ultimate Guide To Understanding The 2004 Jeep Grand Cherokee Ledfoot discussion starter. 778 posts · joined 2004. #1 · sep 24, 2004. can some of you with '01 or newer wjs with the 4.7 take some pictures of the hydraulic fan cooling system on those jeeps? also if anyone have general information about it (what rpm does the fan spin, what is the cfm of the fan, diameter, etc.). But first check the hydraulic cooling fan control fuse # 16 in the pdc. when that one is blown, the fan just keeps at the 500 rpm speed and you will indeed overheat after standing still for a while. frank. jeep grand cherokee 4.7 lmtd 2004:thumbsup: quad squad member. kyb gas a just shocks transgo reprogramming shiftkit. vw beetle 2.0 tsi 2013. So probably in your case you just remove all hydraulic lines and the connector and then first remove the two lower bolts. they are difficult to access and can only be turned a little bit each try. if both lower bolts are out, you can easily remove the upper two bolts and remove the fan assy. frank. jeep grand cherokee 4.7 lmtd 2004:thumbsup:. There are in fact 4 inputs which the pcm receives which have influence on the fan speed: besides the coolant temp and ac press it also monitors the transmission temp and the battery temp. when i'm not wrong the fan will only speed up at coolant temperatures between 220 225. frank. jeep grand cherokee 4.7 lmtd 2004:thumbsup:.
The Ultimate Guide To Understanding The 2004 Jeep Grand Cherokee So probably in your case you just remove all hydraulic lines and the connector and then first remove the two lower bolts. they are difficult to access and can only be turned a little bit each try. if both lower bolts are out, you can easily remove the upper two bolts and remove the fan assy. frank. jeep grand cherokee 4.7 lmtd 2004:thumbsup:. There are in fact 4 inputs which the pcm receives which have influence on the fan speed: besides the coolant temp and ac press it also monitors the transmission temp and the battery temp. when i'm not wrong the fan will only speed up at coolant temperatures between 220 225. frank. jeep grand cherokee 4.7 lmtd 2004:thumbsup:. 3) upgrade to the new hydraulic fan assy. 52079860ae hydraulic radiator fan module (includes new fan, shroud and everything else you need) $715 $1100. 52080135ab jumper harness (required for new fan) $65 $80. Wilson and bradley replace a radiator fan on a 04 grand cherokee because of a overheating issue.music provided by audionautix.
The Ultimate Guide To Understanding The 2004 Jeep Grand Cherokee 3) upgrade to the new hydraulic fan assy. 52079860ae hydraulic radiator fan module (includes new fan, shroud and everything else you need) $715 $1100. 52080135ab jumper harness (required for new fan) $65 $80. Wilson and bradley replace a radiator fan on a 04 grand cherokee because of a overheating issue.music provided by audionautix.
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