Originally Posted by remmy
Potentially good news! I took the jeep to the naval hobby garage and the guy there listened to it and said he didn't think it was the water pump. He got a stethoscope and we listened to find that the noise is coming from the new ps pump I put in the other week. He told me to get the Lucas ps fluid because he believes there is a lot of air inthe system because I didn't flush it out. Went to autozone and the guy there got me to turn the wheels while he looked at the resivoir and sure enough he said there was a lot of air bubbles comin up. Now I gotta drain it and replace it with that Lucas oil and it should be dandy! I'll keep the new water pump around though lol
I just did my P/S pump and yes they are a bit of a pain to bleed the air out. As for using lucas oil I would severely caution you. The jeep system doesnt use regular ATF like most P/S systems use. Stick to the mopar hydraulic fluid and use a mityvac with a P/S adapter on it to bleed the system.
Quoted from WK jeeps
"Mopar® Hydraulic fluid/Power steering fluid p/n 5142893AA (CAUTION: DO NOT use ATF+4 transmission fluid or other types of power steering fluids when servicing or topping-off the 2005-2010 Grand Cherokee power steering / hydraulic system. Damage to the power steering / hydraulic system can occur if the wrong hydraulic / power steering fluid is used."