Since I'm working on the AV 4wd. I need to do some maintenance. I will be changing hoses and coolant, belts, plugs and wires. Trans fluid, transfer case fluid. Probably diff fluid as well.
I'm thinking of changing the water pump. Last summer it seemed that the engine temp was stable under 2700rpm. Every time i went over that for any period of time the temp started rising quickly( This was towing my camper). I don't know if the stock pump has a plastic impeller or not. but i feel better changing it while i'm doing the hoses.
I see 2 pumps on rock auto that state metal impeller
1. Gates 45006 includes thermostat and housing and gaskets. $98.79
2. ACdelco oe 251743 includes gasket but no thermostat or housing. $121.79
The gates pump lists impeller rotation as reverse.
The ACdelco lists impeller rotation as standard.
So, if i buy the ac delco pump, i need the thermostat and housing. There is a note on the listing for thermostat housings that states if pump has been replaced with a 2004 or newer pump, you must use the 2004 thermostat housing.
I have no idea if the pump i buy would be the newer design. So I don't know what housing to buy.
If i buy the gates combo , will i have a rotation problem, or is this just a technical mistake?http://www.rockauto.com/en/moreinfo.php?...453&jsn=453http://www.rockauto.com/en/moreinfo.php?pk=1390525&cc=1411894&jsn=452