Compression Test Gas Pedal To Floor

A compression test is a good way to get a baseline of the mechanical health of your engine.

Compression test gas pedal to floor.

Hold the gas pedal to the floor to open the throttle plate and keep it at wot wide open throttle for as long as you re cranking if you didn t pull the mpi fuse there would be a bit of a mess now. Screw the compression gauge into the plug hole. So could a mechanic turn the ignition on jam the gas pedal to the floor to open the throttle then do the compression test making sure to disable the ignition signal to the spark plugs. Make sure the car is at operating temp also i take the ecu fuse out so i won t get fuel then i just take out one spark plug and screw the compression tester in.

Yes you need to hold the gas all the way to the floor while your cranking the motor over. Have your assistant hold the gas pedal all the way to the floor wot wide open throttle and begin cranking the engine over for a count of 5 to 7 seconds. Record your readings from the gauge and repeat this on all cylinders. What i did was before the compression test i went for a nice hard drive so the car can reach operating temps quickly and when i had it at about 190 200f i shut the car.

Cavell august 28 2019 9 29pm 16. Hold the gas to the floor and crank it over 5 10 times until it stops going up then do the same for the other plugs. Is this correct way i am getting 150psi doing it this way but i don t know if i am supposed to be putting gas pedal all the way down. In the video below i show putting the gas pedal to the floor when cranking the engine.