check the small hose that goes to the upper side of the overflow tank. The fitting that is on the side of the water pump housing that connects that small hose to the overflow tank plugs. clean it out and see if that takes care of your problem. It worked for me I had the same problem. it plugs and the air cant escape causing an air pocket that cant get out.
Your thermostat is stuck open. Buy a new one they are usually really cheap and you can usually repair it yourself. They are easy to get to even in compact engine space.
The cooling system is probably getting old ... but to leave a car idling for 15 min is not a good practice for the car or for your gas milage.
change the water temp sensor
Check the fans on the radiator of the 1993 E-150 Van. The fans are supposed to turn on when the engine need cooled after reaching a certain temperature. This is usually due when the car is idling at lights or driving at higher speeds.
As the vehicle sits idling the driveshaft is not rotating.
Yes, when idling and driving.
It could be a variety of things, all having to do with the cooling system. Most likely it is a faulty engine fan that is supposed to automatically cut on when your engine hits a certain temp. It could the the fan motor itself, the relay that controls the fan, and maybe just a fuse. If the car does not overheat AT ALL in freeway driving (lots of cool air passing over the engine constantly) and overheats either idling or during city driving that engine fan is to blame.
Probably wheel bearings or wheels are unbalanced
It depends on how long you are idling, or how fast you are going. If you know you are going to be idling for a long time, it's best just to put your car in park.
My 2007 overheated and the engine shut down automatically - while I was driving
Car emissions can be reduced by reducing idling time and by driving at a moderate highway speed when possible. Driving too fast and idling are both wasteful in terms of fuel, and increase the vehicle's emissions.
It's a 1997 Tahoe