Rough Idle Due to EGR Valve Sticking Open on Cadillac DeVille

The EGR valve may stick open, causing a rough idle and/or the Check Engine Light to illuminate.

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Average mileage: 113,455 (35,800–220,000)
Engines affected: 4.6L V8, 4.9L V8
13 model years affected: 1992, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
52 people reported this problem
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problem details
2001 Cadillac DeVille 169,400 mi,
My engine idles high when I start and idles down after a few minutes what may be the problem
2000 Cadillac DeVille 118,160 mi,
rough idea when stoping at lights oor just ingaged into drive
2005 Cadillac DeVille 82,000 mi,
Car idles roughly and ocassionally stalls.
2001 Cadillac DeVille 132,000 mi,
car was idling at 1325rpm idle control motor was not open and closing like supposed to.
2002 Cadillac DeVille 110,000 mi,
ran rough till i got it repaired at dealership. very expensive
having this problem right now. its hard to control the car when this happens and the mechanic can't fix it unless I can get it there so he can see/hear it. it usually dies down by the time I get there, but it returns randomly.
2003 Cadillac DeVille 113,000 mi,
sometimes my car will cut off wile i;m warming it up or try to choke out at a stop light
2005 Cadillac DeVille 78,000 mi,
rough idle ony when first start engine
1992 Cadillac DeVille - 4.9L V8 123,145 mi,
When at a stop the engine idols very high trying to move forward when put in park it reves very high
2002 Cadillac DeVille 35,800 mi,
Rough idle. Just started after a 2 hour drive. Run fine until I stop the it seems to chug.
egr valve replaced
about the EGR i have the same problem.... the EGR is 150.00 200.00 never buy used from a junk yard or clean them i did both and lost money. you have to buy new!
1996 Cadillac DeVille 92,000 mi,
Harsh start egr sticking open can't solve disfunction. I did a parsidic draw test and found out it was my comfort fuse draining my battery. Well, I started pulling it every night and everything was working good new egr valve and battery give or take 2 months car starts acting up even with fuse pulled.
Dies at any stop or normally when I 1st put it in drive
My car idles great but when I put it in gear and put my foot on the gas it sputters so then if I take my foot almost off the peddle it idles great again. I changed my fuel pump but the one auto zone gave me is about 3 inches shorter then the one that was in there does it matter
1992 Cadillac DeVille 130,000 mi,
car stalls at times when stuck in traffic
I had the throttle clean new Egr new idle control valve new plug