What should the voltage be on a fuel tank sensor?
The voltage should never read zero or 5 V. Instead the reading should be somewhere in between those high and low points. The voltage should also change when the engine is first started. If you do find a fixed voltage reading between zero and 5 V you most likely have a defective sensor.
How can I check the voltage of my fuel pump?
Establish the location of the fuel pump relay on the dashboard or the engine compartment. Remove the relay and have some one switch on the ignition without starting the engine. Check for voltage at the relay connector using a digital multimeter.
Why is my gas tank clogging up on my ATV?
Old or unstabilized gas tends to gum up over time and may create a clog. Dirt and debris getting inside the tank is another common culprit for a clogged-up fuel supply. The easiest way to identify the cause is through a process of elimination.
What is the Check Engine Light code on a gas tank?
These automobiles will set a check engine light code in the P0440 range. However, when the sensor itself causes a problem, P0452 or a P0453 set for the fuel tank pressure reads low or high respectively. Unfortunately, if the seal fails where the sensor fits into the fuel tank it can also set evaporative emission system leak codes like P0442.
What to do if your forklift cranks over but doesn’t start?
If you do not have voltage at this point check the ignition circuit thru the ignition switch, fuses, and wire harness connections. If you have voltage at the positive post of coil move your test probe to the negative side of the coil. Now crank the engine over. You should see your test light blink on and off as the engine turns over.
Establish the location of the fuel pump relay on the dashboard or the engine compartment. Remove the relay and have some one switch on the ignition without starting the engine. Check for voltage at the relay connector using a digital multimeter.
What to do when your engine won’t start or crank?
The easy way to identify an engine crank problem is to start the engine and switch the headlights on and watch what happens. If the headlight DO NOT light up, possibly the amps flow strangled by a poor battery cable connection. If so, try to check and clean up the ground straps of engine-to-chassis and all battery cable connections.
Old or unstabilized gas tends to gum up over time and may create a clog. Dirt and debris getting inside the tank is another common culprit for a clogged-up fuel supply. The easiest way to identify the cause is through a process of elimination.