Ok. Most people do not know this, but, the "on" position of the key, without the engine running, is a diagnostic point. When you do this, all of the red, yellow, or whatever color lights should all come on, telling you that they all work. All electric gauges should pin, confirming their operation. Now, when you go to the start mode, all kinds of things are happening voltage wise, so some bouncing around will occur.
Your car can run sluggish and have problems starting
There is about a thousand reasons a car can have problems starting. Best thing you can do is take it to a good shop or buy a book on your car and fix it yourself.
Problems starting a car can be due to one of many reasons, including a problem with the car battery.
the gauges move in the first place bacause of air pressure/temp so when u shut off your car the pressure is released because the gauges would break more frequently otherwise.
if you have engine oil in your fuel injectors then you have bigger problems then your car not starting..
Yes, it can cause hard starting.
The car wants you to take it to a certified mechanic, for a change.
There are certain car gauges which are mandatory to have in a dashboard. These gauges are the speedometer, the temperature gauge, the fuel gauge, the tachometer, oil pressure gauge, charging system gauge, and odometer.
my battery is good but having problems with starting