compression test with engine out

Reply Subscribe

Thread Tools

Search this Thread

Aug 12, 2012 | 08:50 PM

smoggist

Thread Starter

On The Tree

Joined: Dec 2011

Posts: 171

Likes: 0

From: Bow Island, AB

compression test with engine out

is there any way to accurately test the compression with the engine out of the vehicle? i tried turning it over by hand and got an alarmingly low 30 psi which made me think i **** performing the test right.

Aug 12, 2012 | 09:06 PM

Byrdman11

TECH Fanatic

iTrader: (1)

Joined: Mar 2012

Posts: 1,791

Likes: 2

From: Macon Ga

Do a leak down test it better for test a engine for problem anyways.

Aug 13, 2012 | 01:56 AM

1FastBrick

Custm2500's Rude Friend

iTrader: (17)

Joined: Apr 2007

Posts: 14,592

Likes: 900

From: JunkYard

Slap a starter on it and either hot wire the starter or use one of the hand held triggers.

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

Help with LQ4 swap in 91 Z71 RCSB

GrooveCityZ71

GM Engine & Exhaust Performance

Aug 31, 2015 12:05 PM

LS swapped 88. Need help identifying a noise.

superchomper2003

GM Drivetrain & Suspension

Aug 26, 2015 09:39 AM

Exhaust sound/drone with LTs and ORY?

Chiphead

GM Engine & Exhaust Performance

Aug 1, 2015 04:43 PM

Need help - Stumble at first cold start, dealer can't find anything wrong

Mossyoakglock

GMT 900 Trucks General Discussion

Jul 17, 2015 08:30 AM

G302 Fuel Injectors for sale and l92 intake

jrplz

GM Parts Classifieds

Jul 9, 2015 12:07 AM