Thread: compression test

well alot has to do with either carbon build up on the valves or carbon build up on the pistons which will alter your compression numbers a little depending on the ammount of carbon build up

Perry this is the correct way to do a comp test

The proper way to do a compression test on a nissan is as follows.
1) warm car to normal operating temp(not to hot or to cold)
2) remove fuel pump fuse
3) start car and allow fuel pump lines to be cleared
4) attempt to start car a few times after it stalls
5) remove all spark plugs
6) disconnect distributor at harness
7) Hold the gas pedal down
8) crank car until the highest reading is reached
9) repeat on each cylinder

thank you for that info. i gonna do it again and get back to you guys