Partially plugged heater core?
Thermostat defective opening too soon?
Control cable not adjusted properly?
Water pump not circulating water?
Defective radiator cap not building suffient pressure?
Asked in Physics, Chemistry, Energy
What is the efficiency of an engine when the heat input is 1000 joules and the waste heat is 750 joules?
Efficiency is output/input, waste heat is what not going to output. Input = Output + Waste heat so Output = Input - Waste heat and efficiency = (input - waste heat)/output Just press the calculator for the answer outcome XD 25% (apex) :) ...
Asked in Pontiac Transport
What would cause overheating 1998 Pontiac transport?
hi . i also own a 1998 Pontiac trans sport i was having the same overheating problem. try replaceing the thermostat first .or like me replace the lower intake gASKET MINE WAS BAD!! IF YOU HAVE NO heat in the van and the temp gauge in the van keeps jumping up and down that's what it is ...
Why does the heater in your 1998 Pontiac Sunfire generate little or no heat?
First make sure the radiator is full of coolant ;this is where the heat comes from. If it is full , then change your cars thermostat. The stat is located at the lower end of the top radiator hose within the water outlet. That should do it. ...
Asked in Fuel and Engines, Mechanical Engineering
What is definition of thermal efficiency of gas engine?
In general, efficiency is the ratio between the output of a device and the input, . For thermal efficiency, the input, , to the device is heat, or the heat-content of a fuel that is consumed. The desired output is mechanical work, , or heat, , or possibly both. From the first law of thermodynamics, the energy output can't exceed the input, so ...
How come cold air comes out when the heat is on in a 1992 Pontiac Bonneville?
I KNOW IT CAN BE THE BRAIN BOX, HEATER CORE, PLUGGED UP HEATER CORE, A COMPRESSION HOSE, AND ALSO A DOOR THAT DOES NOT OPEN TO LET THE HEAT IN, A THERMOSTATE I HAVE MINE FIGURED DOWN TO PLUGGED UP HEATER CORE, OR A DOOR AND TRYING TO FIND OUT WHERE THE DOOR IS CAUSE I HEAR A CLICKING, AND WANT TO HAVE SOMEONE TRY TO OPEN IT. ...
What law of thermodynamics requires the work output of the engine to equal the difference in the quantities of heat taken in and released by the engine?
The first law of thermodynamics requires that the energy input to a system must equal the energy output from a system plus the accumulation of energy in a system. If no energy is accumulating then the energy input is the heat in and the energy output is the work and heat out. ...
What can be wrong if a 1991 Bonneville has no heat?
Most common causes are: Low on water in the cooling system, Stopped up heater core, ...
Asked in Pontiac Transport
Why would a 1998 Pontiac Transport Montana over heat when stopped after the thermostat coolant sensor water pump radiator intake manifold gasket radiator cap and all of the lines have been changed?
I have a 2000 Pontiac and my was doing the same thing. It turned out to be my heads were warped. You can smell it coming out of your tail pipe if it is your heads. ...
Asked in Home Electricity, Physics, Global Warming
Why does energy saver give more light than electric bulb of same watt?
Both bulbs output the same amount of energy. The difference is in how much of that energy is output as heat vs the energy output as light. In a standard incandescent light bulb about 10% of the energy is output as light while the other 90% is output as heat. This makes the bulb only 10% efficient. For a florescent bulb the output of light is about 50% and the other 50% is output in heat. This means that a fluorescent...