# Replacing an engine

**URL:** <https://community.cartalk.com/t/replacing-an-engine/41601>\
**Category:** Maintenance/Repairs\
**Tags:** geo, metro\
**Created:** [January 1, 2010, 5:12am UTC](https://community.cartalk.com/t/replacing-an-engine/41601 "2010-01-01T05:12:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![RetroMetro](https://avatars.discourse-cdn.com/v4/letter/r/a88e57/32.png) [@RetroMetro](https://community.cartalk.com/u/RetroMetro)\
**Post date:** [January 1, 2010, 5:12am UTC](https://community.cartalk.com/t/replacing-an-engine/41601/1 "2010-01-01T05:12:27Z")

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I have a 91 Geo Metro Convertible that needs a new engine (with AT). Can a 96 Geo Metro engine be used as a replacement?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [January 1, 2010, 12:28pm UTC](https://community.cartalk.com/t/replacing-an-engine/41601/2 "2010-01-01T12:28:05Z")

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The 91 vehicle has the OBDI engine management system. The 96 vehicle has the OBDII engine management system. So it won’t work unless you’re willing swap a lot of parts from one engine to the other in order for the 96 engine to work in the 91 vehicle.

Tester

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [January 1, 2010, 12:35pm UTC](https://community.cartalk.com/t/replacing-an-engine/41601/3 "2010-01-01T12:35:00Z")

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About the only part you could use of the 1996 engine is the engine block (and the accessories, of course).