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I have recently inherited my Great-Grandfathers Sedan Deville. It has 17,500 original documented miles and is in perfect condition inside and out. I drove it back to Texas from Ohio with no problems, but two weeks later the car started to hesitate and sputter when given gas at a standing start. It feels like the car is trying to start off in the wrong gear. I took the car to the local Cadillac dealer and they said that the engine and tranny were perfectly fine. What they did say was that my ECM module was bad, most likely because my EGR Solenoid shorted it out. I replaced the ECM module and had the EGR Solenoid tested again and it ohmed out fine, but just one week later the ECM module has shorted out again and the problem is back. The Caddy dealer said that replacing both the EGR Solenoid and the ECM module would fix the problem for good....big problem though. They told me that the EGR Solenoid is not made any more and that there are none available in the entire Cadillac system. I have checked on the internet and have yet to find a parts store with one. I hate to scrap a great car that is in such great shape, but I don't know how to get around this problem. Anyone have any ideas on how to save my Caddy??? Any ideas are greatly appreciated.

David
 

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1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII
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If all else fails you may as well try junkyard parts. If the body and interior are good there's no reason to scrap it just because the engine's bad, I'm sure there's someone out there who would love to stick a 500 in one of those...
 

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1970 Sedan deVille hardtop
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I'd try cleaning out the EGR solenoid, they can get gunk inside there and it will stick.
You could also disconnect the EGR solenoid, just don't tell the feds...

I'm assuming the EGR solenoid just controlls vacuum being applied to the EGR valve, right? If that is the case, you don't have to have the official caddilac part, you just need any solenoid that will controll a vacuum line and you could 'borrow' an EGR solenoid from a number of other GM vehicles. Dealer might not have parts for them either, but the junkyard certainly does.
 
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