Junglo, your waterpump may be out. You not having heat is a good symptom. Don't drive it anywhere. You'll need to change the pump.
Here's the how-to on how to change waterpump The rough starting may be unrelated. With 130K on it when's the last time you,
1: Changed plugs & coil
2: Coolant flush
3: Changed fuel filter
4: Changed PCV valve
5: Changed air filter
6: Cleaned throttle body & EGR passages behind throttle body
7: Checked to see if secondaries are opening & if linkage that opens them is still attached & working (I can't find a how to on that one)
These are all good things and all but #2 can give you trouble if they're not right. (2 is just good to do anyways)
About your secondaries, if you have a V6, then if you look under the air intake tube (almost under the plastic engine cover part, and pretty close to the top of the Vee of the engine) you'll see a little metal wire thingy that connects the IRMC to a little lever. While the engine is running, and you're under the hood, rev the engine to about 3800 for a couple of seconds and you'll see that linkage move back and forth as the revs rise and lower. That linkage opens what is called the secondaries, which basically switches the path the air takes going into the cylinders. The UIM or upper intake manifold is that series of tubes on top of the engine. There are two paths the air can take, the long tube path or the short tube path. One is for lower engine speeds and turbulent flow, while the other is for higher RPMS (ergo higher speed) and a less turbulent flow. That linkage actually pulls on the secondaries. You might notice that in driving hard, once the RPM's go above 3800 (or so) RPM's the engine will hesitate just for a split second. That's the crossover from one set of intake runners to the other.
Anyways, it's always good to ensure that linkage is working. The metal wire is held in place on both ends by tiny round plastic clips. Orginal ones are made of black plastic that breaks very easily as the heat of the engine degrades the properties of the plastic they are made of. New replacements (dealer only, but cheap) are made of a white plastic that is more immune to heat degradation.
Whew,....what was your question again....?
