# Ford v-10 compression test

**URL:** <https://community.cartalk.com/t/ford-v-10-compression-test/86878>\
**Category:** General Discussion\
**Created:** [August 29, 2014, 9:21pm UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878 "2014-08-29T21:21:48Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Ellis9](https://avatars.discourse-cdn.com/v4/letter/e/a88e57/32.png) [@Ellis9](https://community.cartalk.com/u/Ellis9)\
**Post date:** [August 29, 2014, 9:21pm UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878/1 "2014-08-29T21:21:48Z")

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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?

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**Author:** ![twotone](https://avatars.discourse-cdn.com/v4/letter/t/e95f7d/32.png) [@twotone](https://community.cartalk.com/u/twotone)\
**Post date:** [August 29, 2014, 10:45pm UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878/2 "2014-08-29T22:45:47Z")

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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.

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**Author:** ![Ellis9](https://avatars.discourse-cdn.com/v4/letter/e/a88e57/32.png) [@Ellis9](https://community.cartalk.com/u/Ellis9)\
**Post date:** [August 29, 2014, 11:01pm UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878/3 "2014-08-29T23:01:07Z")

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

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**Author:** ![wolyrobb](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wolyrobb/32/45497_2.png) [@wolyrobb](https://community.cartalk.com/u/wolyrobb)\
**Post date:** [August 30, 2014, 9:12am UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878/4 "2014-08-30T09:12:27Z")

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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](http://www.ford-trucks.com/forums/1057190-compression-check-0n-2006-v10.html)

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**Author:** ![Ellis9](https://avatars.discourse-cdn.com/v4/letter/e/a88e57/32.png) [@Ellis9](https://community.cartalk.com/u/Ellis9)\
**Post date:** [August 30, 2014, 4:24pm UTC](https://community.cartalk.com/t/ford-v-10-compression-test/86878/5 "2014-08-30T16:24:12Z")

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Ah, thank you again!