I'm looking for an air diverter valve ; see discussions on them. Has anyone found them yet?

Tiny
BRIAN JOHNSON
  • 1990 CADILLAC DEVILLE
  • 223,000 MILES

This would be for a 4.5 L FWD sedan. I see AC Delco and other parts #s listed. Have there been any results?

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Sunday, October 2nd, 2011 AT 5:58 PM

40 Replies

Tiny
JACOBANDNICKOLAS
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Are you looking to purchase one or the location on the vehicle?

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Sunday, October 2nd, 2011 AT 7:40 PM
Tiny
BRIAN JOHNSON
  • MEMBER

Looking to purchase a new one (air diverter valve GM part #17090215)for 90 Caddy DeVille 4.5 L FWD

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Tuesday, October 4th, 2011 AT 7:17 PM
Tiny
JACOBANDNICKOLAS
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A dealer is the only place you'll find a new one. That is if they haven't discontinued them.

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Tuesday, October 4th, 2011 AT 9:14 PM
Tiny
SATURNTECH9
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Just to add to this one is the pic I posted the part your looking for?

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Tuesday, October 4th, 2011 AT 10:57 PM
Tiny
BRIAN JOHNSON
  • MEMBER

Statech- thanks but, no, it is not the right part. What I'm looking for has a whole lot of ports on it, is black, looks like some sort of spaceship, more cylindrical or tube-like than square, . Looking for used or prefferably new. Not even Cadillacs Only has one. GM part 17090215, AC Delco #214-123 SMP #DV84

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Tuesday, October 4th, 2011 AT 11:26 PM
Tiny
SATURNTECH9
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So is theac delco number all together including the dv84 the way that number is posted its a little confusing. Iam really good at finding parts thats why I chimed into this onethe challengeto find thr part.

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Tuesday, October 4th, 2011 AT 11:59 PM
Tiny
BRIAN JOHNSON
  • MEMBER

No, sorry. The AC Delco # is 214-123 The other is Standard Motor Products (or Parts?), But SMP DV84. Sorry for the confusion.

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Wednesday, October 5th, 2011 AT 1:24 AM
Tiny
CADIEMAN
  • MEMBER

Any ac delco parts store will have it or it can be ordered

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Thursday, October 6th, 2011 AT 4:39 PM
Tiny
SATURNTECH9
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You can try calling one of those ac delco stores I have been putting those part numbers into the websites that sell ac delco parts and it comes up as part not found. Try this go to www. Parts. Com and get the phone number off the website give them a call and see what they can find for you. They sell factory parts for all different kinds of makes. There a parts locator I have bought parts from them before they found the parts I was looking for. Let me know what you find.

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Thursday, October 6th, 2011 AT 4:57 PM
Tiny
BRIAN JOHNSON
  • MEMBER

This is a discontinued AC Delco part, also discontinued by SMP, and has been called 'the holy grail' of Caddy parts by noneother than Cadillacs Only in CA.I found one place that says they have 3 of them, but they are unable to find them in their 45,000 square foot warehouse amongst their 32,000 parts bins.I even told them that I would buy all three. Whether they are looking for them, they didn't sound too enthusiastic even though I offered them extra money to look.

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Friday, October 7th, 2011 AT 12:11 AM
Tiny
SATURNTECH9
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It felt like I was looking for the holly grail looking for that part. Looks like your headed to the pick a parts for the holly grail thats where I would go look next. Keep us posted on the hunt for the holly grail lol.

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Tuesday, October 11th, 2011 AT 11:27 PM
Tiny
CADIEMAN
  • MEMBER

Why ars you replacing it. There is a valve mounted near the vacuum pump connected by hoses. Is that it?

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Wednesday, October 12th, 2011 AT 5:22 PM
Tiny
BRIAN JOHNSON
  • MEMBER

Being replaced because it is failing( according to my local Caddy dealer) and, though it does so not instantly, it goes quick; when it does, the car will not operate. It is behind the rear valve cover, on top of the motor, with a handful of hoses and a couple of electrical connects on it. It is impossible to find. Though the dealer had cleared the trouble code, my Service Engine Soon light just came back on today, which means failure is immenent. Once this happens, I'm letting this car go. It won't be possible to fix unless that part can be found. Anybody!

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Wednesday, October 12th, 2011 AT 8:18 PM
Tiny
CADIEMAN
  • MEMBER

You need to look at the salvage yard and if no let them put it on the part locatior see if they can find it. Push off and warmer buttons on the a/c panel. Then write the code on the fuel center. Id like to know what code its throwing.I never have replaced that part in my whole carreer.

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Wednesday, October 12th, 2011 AT 11:56 PM
Tiny
CUGINO
  • MEMBER

Just was at my mechanic today with code e049. Confirmed it was diverter valve 17090215. Do not panic. This part is an emissions only part. It moves air from intake to exhaust and back. He told me only consequence is worse gas mileage and you will add pollution to air. I am disabled so this is important to me. He guaranteed this will not cause my car to break down and leave me stranded. Anyone else hear different, please jump in and post your info. I spend hours every week looking online, salvage etc. Have ads everywhere no luck, but i'm still driving my 90 eldorado and it drives fine. I don't know who told you it will just die suddenly. What could cause that in respect to this part? I think there is a lot of bad info out there. I should be panicking because I can barely walk. Let's hear from some others with experience on this subject. I also don't want to lose my 68,000 mile mint car. I hope I got right info.

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Saturday, December 3rd, 2011 AT 1:44 AM
Tiny
CADIEMAN
  • MEMBER

What code is it setting. Get the trouble code and follow the tree for dianoses

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Saturday, December 3rd, 2011 AT 2:14 AM
Tiny
FACTORYJACK
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I have located a similar part on ebay, item #360180589973. I know what you are after, and it is discontinued from GM. Look at the illustration on this ad, does it match what you are after? It states an application of 87-88-89, I wasn't sure there was a difference in that valve, but I may be wrong.

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Saturday, December 3rd, 2011 AT 3:58 AM
Tiny
FACTORYJACK
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Usually, it is one of the vacuum solenoids that fails on these. If I am not mistaken(haven't seen one in a few years), both the diver solenoid, and the switching solenoid are the same parts, and sub-parts of the combo valve. If you can find a used one, good or bad, it may have some salvageable pieces to make one good one. Of course, you will have to do a bit more thorough diagnosis on the component itself to determine this, but it can be performed.

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Saturday, December 3rd, 2011 AT 4:05 AM
Tiny
CUGINO
  • MEMBER

My car is throwing e049 so I had diverter valve physically taken off the car and mechanic confirmed it was one of the solenoids. Air pump is providing air to valve so it is doing it's job, but my original question still is, what makes anyone think a total failure of diverter valve would cause your car to be inoperable and need to be junked? My mechanic who only works on classic cadillacs, did mine because he loves my car, emphatically told me that it will not affect the driveability of the car. It is strictly a part that recycles air to efficiently burn any excess fuel in the exhaust which is why it starts off diverting air to exhaust and then when warmed up, back to intake. Can anyone tell me why or how this will cause your car to die even if failure is imminent as dealer told 1st poster. It does not make sense. None of the answers adressed this. You can live with ses light on. If another problem comes up your dic will inform you with new code. Someone please comment on this aspect. Yes we all want the diverter valve, but it just might not happen. Do we all have to sell our cars for salvage? I for one have invested much of my own time and money to make my car look and run perfectly which it does still with ses light on throwing code 0e49. Let's hear some different answers besides look for the part in junkyards. Is this part absolutely necessary to keep your car running or just an emissions part? This subject is on every forum and is controversial, but there is only one truthful answer. Dealers have no interest in working on your 22 yr. Old car. I called 4 dealers and got that same answer. The part is discontinued so that's the end of the story for them. Unless you have a new escalade where they can throw an overpriced part in and then overcharge you for labor, they want nothing to do with you. That's how they make their money, not keeping old cars running. They can't even diagnose things anymore. They are just parts changers. Since they don't have this part they can't make money. They'd rather tell you to junk your car and buy a newer caddy. Anyone have the definitive answer, is my mechanic right or do you believe the dealer's scare tactics? I am losing sleep over this too, so let's hear some logical explanation of how the failure of this part will cause your car to be terminally inoperative. Sorry for long post, but this is not as simplistic as try to find one in a jnkyard. What if we can't. Thanks

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Saturday, December 3rd, 2011 AT 1:52 PM
Tiny
CADIEMAN
  • MEMBER

I remember this valve. It was right behind the vacuum pump. Its was on every cady built back then. If you clear the codes and it keeps setting its a hard code. The valve has to be replaced. The emissions are the only thing effected. Find out how many years thay use that same sensor. Go to the salvage yard if they dont have one they can put it on a part locator. And they garranty its good.

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Saturday, December 3rd, 2011 AT 4:18 PM

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