WONT RESTART AFTER SHORT TRIPS AND ENGINE HEATS TO NORMAL

You may want to replace your crankshaft position sensor. They tend to "open" the circuit when they get heated after they have begun to wear out.

I`m positive you have a bad head gasket.I just did one for a friend of mine that had the same problem on his Buick Rondevous.Same motor.These are good motors but they have a tendency to blow the head gaskets.It is usually the back one for the #1 cylinder.Hope this helps.Good luck.

Yes the starter is going outreplace asap. it has a short that is only there when it is hot. things expands in the starter

I had a similar problem and it turned out to be the rubber fuel lines being old and cracked. The hoses would warm up and fuel would squirt out of the cracks. I had to replace three fuel line hoses and it has been running great ever since. Good luck.

replace the fuel filter

3 words come to Mind. Heater Blend Door

First of all, it doesn't sound like your thermostat is working correctly to keep good hot/warm air coming , so I would change that, or have it changed for better heating inside. If you lift the hood & look in front of your radiator, On the engine side, you'll see a fan attached to, or in front of the radiator. It won't come on until the coolant temperature gauge gets up to proper operating temperature. Without getting in to too much detail, have your thermostat changed, and my guess is everything else will start working as it should, and whoever does the work, should know enough to check the fan operation when they do the thermostat.

The cam or crank position sensors are notorious for failing, after they age and get heat in them the signal is no longer generated. Also make sure fuel lift pump is working properly, check all of the fuel filters and for fuel leaks of any kind including sucking air on the suction side of the lift pump. Good Luck!!

warm your car up to temperture. Grab the upper rediator hose. Is it warm or cool. If its cool your thermosat is stuck closed and thats why you have no heat. If that works fine I would look at your heater core next.

if the light is blue it just means the car is not at operating temperature yet. let the car warm up before driving. if the light is red and only stays on for seconds check the coolant level. could possibly be a bad level sensor also if the light is red