Hi People; I have a 2000 Dakota 4X4 Quad Cab with a 4.7L, Auto. It did not come with the factory tow package on it. It has 54,000 miles on it. This year it just started running warm, and it runs some crazy temps sometimes. During normal running at highway speeds with or without the air on, it runs about 200 degrees when it is about 75 degrees out. When it is 90 out it will run 210 degrees. If i get stuck in traffic, without air on, it runs about 210, and the electric fan is not on. If I turn on the air in traffic, it cools down to about 195-200, and the fan is on. Today, the electric fan without the air on came on, but had to exceed 210 degrees, maybe 220. I have never overheaed it, or boiled out any antifreeze. I replaced the radiator cap, because the rubber seal was swelled and was binding in the hole. I replaced the fan belt, because the outside was glazed, and thought maybe the fan pully was slipping on it. Today it was 95 out, and it got up around 215-220, so I pulled into the driveway, turned off the air, and let it idle. After about 10 minutes, the electric fan was still on, and it cooled down to about 200. I'm not sure where to go next. I have a new thermostat to pui in , and think the radiator may be partially plugged. Never added stop leak or anything. Maybe the waterpump is bad. My questions are, what are some common problems for running hot on this model. How many cores did the standard radiator come with, and how may cores for the heavy duty cooling system that came with the tow package. One online radiator place tried to sell me a one core radiator, is this right? I have found several two core radiators for it, but think it may need a three core. Could the fan clutch be bad? The only time I hear it roar is when it is cold. After that it never roars again, until it is cold again. I have just started pulling a 3900 pound camper, and want to put on heavy duty cooling and a trans cooler anyway. I also read that the diff had synthetic gear oil in it with the towing package, what about the transmission, just standard fluid? Thanks for the advice. Seeya Scotty1
Last edited by Scotty1; 09-07-2007 at 10:44 PM.
Reason: forgot something