How does a heater fan affect fuel consumption?
How does a heater fan affect fuel consumption?
On the assumption that nearly all car engines (for failsafe reasons) tend to run too cool for ultimate efficiency, the slight extra cooling provided by a car’s heater matrix and the slight extra electrical drain caused by the heater fan might make a minuscule difference in fuel consumption.
What to do if your car temp gauge is not working?
Bypass Temperature Sensor – Connect a jumper wire between the 2 pins of temperature sensor harness connector. If temperature gauge indicates hot, replace coolant temperature sensor. If temperature gauge does not indicate hot, go to next step. 3. Check Red/White Wire For Short To Ground – Turn ignition off.
Why is my Ford coolant gauge not working?
A lot of Ford’s have 2 different coolant temp sensors. 1 for the pcm and 1 for the gauge. They are NOT interchangeable. One or both may be bad or they may be the wrong ones. Was this answer helpful? Similar prob: 94 toyota truck my gauge says cold. Idle high at stop lites. It was overheating and took therma out.
Why does my fuel gauge read high all the time?
The fuse would affect the tach as well, so the instrument voltage stabiliser is the prime suspect, or the wiring to/from it. The gauges don’t need an earth for anything except the illumination, as the earth that operates them comes from the relevant sender. The stabiliser does need to be earthed, although if that goes AWOL the gauges read high.
How does the fuel and temp gauges work?
The temp gauge is a capillary one so that isn’t in the equation. The electrical gauges run on 10 volts DC current. Without a VS, the gauges would change their readings every time the engine speed or load changed. RAY But it doesn’t Ray, because the gauge mechanism is damped.
What’s the voltage on a damped fuel gauge?
A damped gauge will still fluctuate with voltage, which could be anywhere from 12v to 15v as Ray says varying with engine speed and load. That’s why a stabilised system was necessary, the manufacturers didn’t put it in for fun. Alternator or dynamo makes no difference, but the type of gauge and sender does.
How are fuel and temp gauges on a 1977 MGB?
The last two time I took my 1977 US spec. MGB out for a drive the fuel and temp gauges would work then not work then work then not work. In other words gas tank is full but the needle will sometimes drop down to about 1/4 tank and at the same time the temp gauge drops down to close to the cold location.
