Battery could low. Check it and Replace the battery I had this problem for nearly a year (ever since I had bought the car used). Ultimately, having the fuel pump replaced has made my car start up just wonderfully on cold mornings and on hot days.
It will affect the speedometer but the tachometer will still be accurate.
If striking the dashboard encourages or clears the fault then either a bad earth or bad solder joints on the membrane sheet behind the dials.
With some difficulty. For mechanical ones you can get cogs with different tooth counts to adjust the readings of the odo/speedo. For electronical ones you can get an electronic circuit called a "divider" that goes between the pickup and the instrument cluster and'll adjust the electronic signal to to the desired value.
Try the fuse box, prolly a burnt out fuse.
check for a loose wire at the fuse box
well one of the problems might be the speed-do cable either being old or needs to be tighten.
Well, a Tachometer in general tells you the RPM of a motor or other such engine. As for something handheld, from what I have seen they would mostly be employeed to engines that are not mounted into a car already as a means of testing their capacity or after some series of tests that can better determine condition or wear or such. Most cars have them mounted into their dashboards to my understanding, to give a reading while on the go.
Normally the term " delta T" is used to indicate the difference of two temperature readings.
Is it that you are getting readings on your test kit that indicate that your levels are below the normal range? Is it a fact that you are getting low readings because you are not adding the product to the system -- via a floater or some sort of feeder. Do not add the tabs to your skimmer. What are your chemical readings. Without some detail we cannot help. k
A: A very low reading in both direction will indicate a shorted diode. A meter is an indicator not a tester keep that in mind
There are several amperage ratings on AC compressors/motors. Locked Motor Amperage (LRA) is the amperage that the motor is fused for. The load of the motor is expressed in amperage or wattage, which is probably the case here. Low amperage readings on an AC unit being charged by amperage load would indicate low freon. High amperage readings indicate overcharge when charging by the amperage load. AC units are not accurately charged by amperage readings and the efficiency of motors is not expressed in amperage readings.
The readings on an ammeter indicate the current being drawn by a load in a circuit. This load is basically a resistance to current flow. The higher the resistance, the lower the current. The supply voltage has a direct effect on current flow. The higher the voltage applied, the higher the current will be. So the readings will vary on the ammeter according to fluctuations in load and or resistance of the circuit and the applied voltage.