Ford v-10 compression test


#1

I’m looking at a 99 Southwind MH with 49k miles on it. I’m having the RV dealer take it to a shop for a compression test.
What is a good range to look for?
175-190 may be too much to hope for?


#2

A modern low mileage vehicle that runs well is not worth doing a compression test. OBD diagnostics and/or emissions test will tell you everything you need to know. Repair history helps too. I used to compression test old beaters I bought back in the '70’s, but have not done it in over 30 years.


#3

Thanks twotone. It’s passed yearly emissions test, but what an OBD diag?


#4

The OBD diagnostics refers to hooking up the vehicle to a code scanner to see if any trouble codes are stored in the computer for the engine. From a discussion on another message board you should see 150+ in every cylinder
http://www.ford-trucks.com/forums/1057190-compression-check-0n-2006-v10.html


#5

Ah, thank you again!