SaturnFans.com Forums - View Single Post - Testing Compression in an S-Series

Dr. Bob · 09-18-2003, 10:23 PM

Dumb question... if you drive the vehicle to the retailer, how in the heck would the techs be able to do a compression check on a cold engine? Wouldn't the engine still be somewhat warm when they do the test, even if they let the car sit for a few hours?

Perhaps the warm (but not hot) Saturn specification reflects the reality that testing on a truly "cold" engine rarely happens?

From a tech perspective - what does a "cold" engine mean anyway?

09-18-2003, 10:23 PM	#7
Dr. Bob Master Member Join Date: Mar 2000 Location: SE Minnesota Posts: 2,041	Dumb question... if you drive the vehicle to the retailer, how in the heck would the techs be able to do a compression check on a cold engine? Wouldn't the engine still be somewhat warm when they do the test, even if they let the car sit for a few hours? Perhaps the warm (but not hot) Saturn specification reflects the reality that testing on a truly "cold" engine rarely happens? From a tech perspective - what does a "cold" engine mean anyway?