levenezia123 Posted May 12, 2012 Report Share Posted May 12, 2012 Both are "9" engines, does one fit in the other? Better check before I buy another one. Thanks Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 12, 2012 Report Share Posted May 12, 2012 I would say no and you would do better by finding a 96 and newer engine. The 94 induction system is tailored to the OBD1 spec, and your 99 is an OBD2 spec. All of the intake components, idle speed, egr system, etc are different and its possible that the accessory bolt locations are different.. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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