How To Do A Compression Test (Scion TC/XA/XB)

Check the compression of your Scion Vehicle, Learn how to do a quick compression test in 20 mins or less with this video. (Scikotics)

Category:

Autos & Vehicles

Tags:

• Scion
• sciontc
• scikotics
• scionxb
• tc
• xb
• xd
• xa
• compressiontest
• compression
• test
• engine
• care
• turbo
• scion
• turbocharg

[drewce123]

What does it mean when ur car has low or high copression can som1 explain this? thx

[DvDizaster]

think of your motor as an air compressor.

the motor sucks in air and squirts a specific amount of fuel onto the head of the piston and when the piston comes back up it compresses and then the spark from your spark plug sparks and the mixture explodes.

if your car has low compression, that means your pistons are wearing down or have work down and this can lead to engine failure

im sure some else here can explain it better then i can. i'm not a engineer or anything

[timanonymous]

Anyone know why you have to press the gas in while cranking?

Thanks for making the video. I didn't know how to do a compression test before, but now I do!

[DvDizaster]

Pressing The Gas is necessary because you have to have the throttle body fully open, the only that opens the throttle body all the way is the gas pedal.

if you don't press the gas pedal all the way down during cranking you'll get very inaccurate results.

[EthanTheExplorer]

Great video but...... AutoZone, WALMART or any other RACE shop. LMAO

[zacferrer]

very educational ...keep it up!!!

[MegaMarshal]

Awesome your hot and, smart which can be rare lol.

The only 2 things i noticed you left out was: you should hookup a battery charger and, also dip the end of the tester in some engine oil. Its not the most important tho. Im suprised you informed us of depressing the gas pedel. Most other vids leave that out.

[BudgetPhoenix]

@EthanTheExplorer

he said any general race shop. Not other like he was implying autozone or walmart were race shops

[toprepublic]

great instructions thanks! could have been a bit shorter though!

[chivoAmuerte]

u dont need a wood board- just disable spark!

[chivoAmuerte]

@blueturbotc ur right!

[blueturbotc]

This guy is a moron, take the EFI fuse out its easier and faster (def if you have a strut bar), EFI stands for Electronic Fuel Injection! has nothing to do with the coil packs, Pull your IGN fuse and or Just un plug your coil packs, He says to do it 4-5 times but he cranks its 7?, Also admits on his first test (just earlier that day) he did it 10-15 times! He should not be showing anyone how to do this. Dont listen to this guy please! Video is only good for knowing what tools you need.

[DALE97DSM]

Nice car and very good readings that is stock compression by the way. Also, low readings is bent valves too, besides what you said. 

[guyana104plyr]

hey,. i was wondering what turbo u have installed, and did u have to chip the ECU.

[angrut]

Hey thanks for this video bro!! Now I can do my compression test very easy. But I thought the higher the compression the better.

[ThatZkid]

@distortia47 Well it's drive-by-wire so the only way to do that would be to actually shove a screwdriver down into your throttle body, which I think we can both agree is a bad idea