Cylinder compression test tutorial (read description)

cylinder compression test tutorial will work for any vehicle. check your recommended compression ratios prior to testing for your vehicle. I didn't do the 10 second rule for the video due to already passing the compression test prior. video is instructional purposes only. my vehicle in video is a 2006 cobalt ss lsj which should read aroun 205 to 210psi from factory. All four cylinders came back around 205 psi. When doing your reading take into account your vehicles milege parts get worn down over time an compression will drop does not mean that your engine is bad it's normal over time. in the video the cylinders at the top aren't in order. start with cylinder one an make your way over to the last cylinder typically on a fwd 4 cylinder like above cylinder one starts on the passanger side

[@willmann30]

Now do a leak down to make sure valves are seating good. If all is well, SEND IT 💨💨💨

[@edforthewin8574]

Then what’s the purpose of the compression tester, aren’t they the same thing?

[@pancakeairsoft7145]

@@edforthewin8574 no the compression tester checks the rings on the piston leak down is valves in the head

[@jonathanx9759]

The higher the better right?

[@jonathanx9759]

And checks oil pressure too nah sounds wrong

[@toxicity6629]

@@edforthewin8574bro

[@izzybusy97]

Thank you for the tutorial and information

[@ryanlee7895]

I guess that won’t hurt the starter?

[@Test-bb4ti]

Don’t wanna stress the starter too much, but if this kills your starter (compression test equaling 2-3 minutes of crank time) than your starter must’ve had an issue already

[@Sawdust65]

Just pull all the plugs first. The starter will run all day with no compression load

[@aksdan7783]

@@Sawdust65so Instead of pulling one at a time to test that certain cylinder take them all out to do what you said ?

[@Rotini-i5g]

Take out all plugs at once and maybe unplug the injectors so they dont wash the cylinders

[@fernando-sl7qm]

What car is this 😮 that’s some good numbers

[@Toast4Toasty]

Yea I think so too. Usually they have about 125psi +/-

[@Lukemasonmedia]

Kinda looks like a Honda block

[@el-media6434]

Thats a 4G63T Evolution.

[@juzt4u_00]

Mantul pak abu

[@Bosniakov000]

wooow thats impressive compression reading 🙄

[@stewartdaniels2874]

What is the name or brands is this tester

[@BomJimmy]

ebay sells below US $30

[@TVideoupload]

What fuse do you have to pull to do this ?

[@maxnugteren4837]

Fuel pump at least, somtimes spark

[@aarons7836]

@@maxnugteren4837what if you have a mechanical pump?