So my alternator is on the way out so I just bought a junkyard one (it was tested, don't flame me). It was out of a 2003. I know some 2000's were water cooled and when I look up alternators for a 2000 they all seem to show a in and out water sleeve. The one I got from the junkyard does not have them. Can my vin or another method tell me somewhere what alternator is in the car before my guy takes it out? This is the picture I have been seeing.
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BEWARE OF SCAMMERS. Anyone trying to get your money should be checked out BEFORE you send anything anywhere.
RON93
Just blew my alternator, how do I know if it is water cooled
1 reading
So my alternator is on the way out so I just bought a junkyard one (it was tested, don't flame me). It was out of a 2003. I know some 2000's were water cooled and when I look up alternators for a 2000 they all seem to show a in and out water sleeve. The one I got from the junkyard does not have them. Can my vin or another method tell me somewhere what alternator is in the car before my guy takes it out? This is the picture I have been seeing.
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Those water cooled alts weren't used long for a reason IIRC. 98 to 2000 on Seville I believe (early 2k only) 2k deville.
I wouldn't hook it back up regardless as hoses cannot be had. I'd cap the off it it did have it and move along without it.
I wouldn't hook it back up regardless as hoses cannot be had. I'd cap the off it it did have it and move along without it.
So upon looking and looking and looking at 2000 Deville alternators all the replacements seem to have those water cooled stems on them. 2001 are completely different numbers and a lot cheaper. If you cross reference the 2000 number it is compatible with later year numbers. Has anybody here put a non water cooled alternator in their water cooled car? I don't want the guy doing this job to have any surprises and have the car stuck on the lift for non compatibility between the two alternators. The nice clean one is a used 2000 water cooled, the nice dirty one I bought has a slightly different back piece, don't know if it will matter.
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I believe on the GM parts online sites have a place on their site to put your Vin in and will tell you which parts your vehicle was built with which should tell you which alternator you have.
Ron - you are correct - the 2000 Deville has the water cooled alternator -
I found a deal for you -
REMY 21794 - $143 - free shipping and no core charge -
partshawk.com
looking closely at the pics - it does have an internal fan for cooling -
so it would be OK to simply bypass the alternator
and connect the purge line directly to the surge tank -
as for using an alternator from a 2001 or newer - I don't think it will work -
the 2000 has a 4-pin plug - the 2001+ has a 3-pin plug -
AND - the housings look slightly different -
compare the pics yourself -
2000
2001+
I found a deal for you -
REMY 21794 - $143 - free shipping and no core charge -
Remy Alternator | 21794
Premium Remanufactured Alternator. Fits: 00 Cadillac DeVille, 00 Cadillac Seville
partshawk.com
looking closely at the pics - it does have an internal fan for cooling -
so it would be OK to simply bypass the alternator
and connect the purge line directly to the surge tank -
as for using an alternator from a 2001 or newer - I don't think it will work -
the 2000 has a 4-pin plug - the 2001+ has a 3-pin plug -
AND - the housings look slightly different -
compare the pics yourself -
2000
More Information for REMY 21794
www.rockauto.com
2001+
More Information for REMY 12249
www.rockauto.com
I know when I go to dealer to buy parts, they use Vin to order part for vehicle that Im buying part for.Now in this link it shows one alternator and if you do search with that part number it says its water cooled.19206559
Alternator for 2000 Cadillac DeVille | World Parts Direct
Alternator for 2000 Cadillac DeVille | World Parts Direct
I'm surprised SUB has not chimed in, i have seen a post or two recommending a normal alternator and looping back the cooling circuit?
Don’t mean to burst your bubble, but I’d be cautious of using a Reman REMY
I put a Reman REMY on my old 1999 Deville and it never worked correctly. It did charge the battery, but on moderate loads like lights and cooling fans, the voltage would drop below 12.8. And the lights flickered sometimes
At some point I replaced the alternator with a used OEM one and that worked perfect
Are there other used 2000 Deville alternators available? I checked car-part.com and there’s a bunch of 2000 Deville alternators listed for $45
Sent from my iPhone using Tapatalk
I put a Reman REMY on my old 1999 Deville and it never worked correctly. It did charge the battery, but on moderate loads like lights and cooling fans, the voltage would drop below 12.8. And the lights flickered sometimes
At some point I replaced the alternator with a used OEM one and that worked perfect
Are there other used 2000 Deville alternators available? I checked car-part.com and there’s a bunch of 2000 Deville alternators listed for $45
Sent from my iPhone using Tapatalk
Does anybody know how the cooling lines are routed and where they actually are? I am very curious how this system works. I was making a broken u-turn about a month ago and I ran over a raised part of cement on the right front of my car and heard a loud scrapping sound. I immediately seen symmetrical liquid droppings in the front of where both my headlights are. When I backed up I seen the trail. It did this for about a hour and never did it again. That liquid had to be coming from somewhere. My alternator blew about a month later. How low do the alternator cooling lines go or are they not anywhere where they could be damaged.
Cadillac Seville GENERATOR COOLING SYSTEM
Diagram of OEM GENERATOR COOLING SYSTEM. Contains 3 parts priced between $15.08 and $92.50. Fits Cadillac Seville.
www.wholesalegmpartsonline.com
Probably similar to this
For clarification, the water-cooled alternator uses a feed from the radiator line that exits the alternator and returns to the surge tank. What we did (in 2 bypasses for leak repair) was to simply disconnect the small coolant lines, cap the radiator fitting, and run a single purge line from the throttlebody or water crossover nipples (depending on year) straight to the surge tank. IIRC the two vehicles in question had alternators with internal fans and there were no alternator heat problems afterwards.
EDIT: this was done shadetree about 17 years ago, so don't hang your hat on my old info. I DO remember that one setup used a Y in the purge line where it ran across the top part of the left bank (front) valve cover.
EDIT: this was done shadetree about 17 years ago, so don't hang your hat on my old info. I DO remember that one setup used a Y in the purge line where it ran across the top part of the left bank (front) valve cover.
Those sloped blades work he same way as a centrifugal water pump - or the visible external fan on many alternators - they "throw" air or water out to the inner rim of an enclosure - or out to atmosphere.
Look closely - here's a 140 amp unit on our boat engine - a 455 Olds - air enters the rear of the case and flows through the guts to exit at slots similar to those in your picture. Blade spacing varies to lessen air whine noise.
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Look closely - here's a 140 amp unit on our boat engine - a 455 Olds - air enters the rear of the case and flows through the guts to exit at slots similar to those in your picture. Blade spacing varies to lessen air whine noise.
I saw 'water cooled alternator' and thought it was an April fool's joke. I guess I'm the fool for not knowing they're real.
They've been used on a few engines over the decades, foreign usually.
No room for air flow is usually the reason.
No room for air flow is usually the reason.
My car is at my mechanics now. I bought a tested used one for $45. It seems in really good shape. It is what it is. No more money thrown at this car, it does run well but this is it's last hurrah. BTW out the top or bottom and did you take out the fans or lower the subframe.
Thx for the reply. It’s been so long that I had totally forgot about that and honestly didn’t even know what color it was. Sometimes we go too long without posting any pics of our cars on this forum.
UPDATE
Finally after sitting for a month at my mechanics shop he got around to installing it, and the used alternator I bought was no good! He said my bad one was better than the used one he just put in, lol So he gave me my original and I sent it off to be rebuilt to a company I do business with. $115. So for being cheap it bit me in the ass good. My mechanic is a good friend who I also do business with so he wasn't pissed just told me get it rebuilt and I'll do it again. Picking up the rebuilt Monday.
Finally after sitting for a month at my mechanics shop he got around to installing it, and the used alternator I bought was no good! He said my bad one was better than the used one he just put in, lol So he gave me my original and I sent it off to be rebuilt to a company I do business with. $115. So for being cheap it bit me in the ass good. My mechanic is a good friend who I also do business with so he wasn't pissed just told me get it rebuilt and I'll do it again. Picking up the rebuilt Monday.
@RON93 - My apologies sir for not seeing your earlier posts . Have been away from the forum for an unusually long period of time. I need to stay checked in more. Hope you got your alternator all back in order snd are good for another 100,000 miles. As noted earlier it really wasn’t a difficult replacement and water cooled replacement was available so that’s what I used. The little water lines were a bit of a pain to get attached but everything’s been fine since. Also replaced the radiator recently/ also pretty straightforward. I’ve been blessed to be able to do all the repairs on mine myself. These cars do require a regular amount of care and feeding .
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