Md Amir

To check power steering fluid, park level, locate the reservoir, then match the fluid to the dipstick or fill marks for the correct range.

To check engine oil, park level, let the engine rest, wipe and reinsert the dipstick, then confirm the oil sits between the low and full marks.

To test an O2 sensor, measure live voltage or fuel trims and confirm the sensor switches cleanly across the normal range under load.

To test a thermostat, confirm its reading with a trusted thermometer and check how your heating or cooling reacts when you change the set temperature.

If you wonder how do i test a crankshaft position sensor, use a multimeter or scan tool to check resistance, voltage, and live RPM signal.

To test an ignition coil, use a multimeter on the primary and secondary windings and compare resistance and spark strength with the manual specs.

To test a spark plug, inspect the tip, measure resistance with a multimeter, and confirm a strong blue spark.

To test a fuel pump, you check sound, pressure, voltage, and flow so you confirm the fault before paying for a replacement.

To test a starter solenoid, verify battery voltage at its terminals and use a multimeter or jumper wire while turning the key to confirm engagement.

To test a starter, rule out the battery first, check power at the solenoid, then use a multimeter or bench test to confirm starter motor condition.