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1996 sts seville EGR valve


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Have a 1996 STS Seville, the check engine light is on

the car is saying to service emmisions, replaced gas cap

and check engine light went out, then about 1/2 hour later

it came back on and won't go out now. I would like to know

if anyone has any suggestions about what to do and want

to know if there is a good way to clean EGR valve versus

replacing it. Thanks

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I suggest pulling the codes and then repair whatever the car says is wrong. It is very likely that it will be an EGR pintle position code, that a good cleaning will fix. At least I hope it will be that simple for you!



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I have gotten the EGR pindle position code a few times until I cleaned my EGR.... PLEASE post your codes, or we can not help. Do you know how to pull the codes? Mike

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

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Mine required cleaning in late 2003 and again early in 2004. When it happened again at the end of 2004 I simply replaced it. It's been good since then.

I expect you might continue cleaning it periodically forever, but I just wanted to have a known good starting point with a new unit.

That's one of the negatives about owning a used vehicle whose service history you might not be familiar with. Goes double for cars that reach our vintage.



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