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Cadillac Owners Connoisseur
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eagleworks4u said:
Any suggestions??
Don't bother unless you're towing a trailer uphill at high speeds in Death Valley in July with the AC on. It's totally unnecessary and just another place to develop a leak and cause real problems.
 

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2011 CTS Performance Coupe
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Discussion Starter #3
Thanks

I was thinking that living in South Florida as heat indexes in the 90's the tranny cooler would help performance... I am just wondering how the sensors woud respond. My engine temp has peaked to 232 deg... As for leaks the fittings can be secured.I was a Aviation Hydraulics tech in the Navy:stirpot:
 

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2008 SRX-V8, 1991 Eldorado
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eagleworks4u said:
Thanks

I was thinking that living in South Florida as heat indexes in the 90's the tranny cooler would help performance... I am just wondering how the sensors woud respond. My engine temp has peaked to 232 deg... As for leaks the fittings can be secured.I was a Aviation Hydraulics tech in the Navy:stirpot:
I agree with mcowden.
The transmission sensors will not "see" anything if the line pressure and oil temperature remain within range.

Auxiliary transmission oil coolers are for extreme conditions like racing or heavy hauling, both of which are not design features of a 1994 Cadillac Eldorado. After all, Cadillac does make a truck for hauling, and the XRS for snappy performance.
 

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94 ETC,97 STS
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I put aux coolers on some vehicles. Not just racing or towing either.

If you worked in hyd you know if keeping fluid temps down is important or not.

PS. I was an AX.
 

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zonie77 said:
I put aux coolers on some vehicles. Not just racing or towing either.

If you worked in hyd you know if keeping fluid temps down is important or not.

PS. I was an AX.
If you knew what you were writing about I would respect that comment. The question was pertaining to a 1994 Cadillac Eldorado which already has a transmission oil cooler of sufficient design. It does not need any help.

By the way, yes, I do have an understanding of thermal dynamics. I was an engineering team member involved in the development for the vacuum braze facility at the former Harrison Division of General Motors Corporation.
 

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1989 Sedan DeVille is now just a fond memory ....
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I am no expert. If I am not mistaken though, I believe it is more difficult to displace the heat in conditions of high humidity than low. The bottom line is, you need to ensure that your cooling systems are in top shape and operating as well as originally designed. If at that point you see temps rising to levels that you are uncomfortable with, adding an auxiliary coolers may be a reasonable option.

You must weigh the costs and risks verses the benefits. If the added cooling is minimal or marginal it may not outweigh the cost and potential new leak possibilities.
 

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91TexasSeville said:
If you knew what you were writing about I would respect that comment. The question was pertaining to a 1994 Cadillac Eldorado which already has a transmission oil cooler of sufficient design. It does not need any help.
By the way, yes, I do have an understanding of thermal dynamics. I was an engineering team member involved in the development for the vacuum braze facility at the former Harrison Division of General Motors Corporation.

91Tex, My post was to eagleworks4u and had nothing (except being in the same thread) to do with your post. Sorry if it sounded like I was commenting on your post. The reference on hydraulics and AX was specific to eagleworks4u experience as an aviation hydraulic tech and being in the Navy as I was.

I would agree with Kev's post and that was what I tried to say to eagleworks4u.


Edited to clarify it as much as possible
 

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2011 CTS Performance Coupe
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Discussion Starter #10
Thank you for all your helpful suggestions and comments. but please put away all your weapons.. :hide:
We as Cadillac owners are a civilized race of people with big brains. :worship:

I just wanted to know if any body has tried replacing their OEM cooler with a aftermarket one and if there was any significant difference in temperature. Zonie and 91 Tex I imagine heat dissipation is a big concern in your areas especially in traffic. My case is in Miami traffic and if anyone has been to the Ft laud area it has gotten worse here with oil prices rising in the North mass migration. My temps only spike in traffic as long as I am moving I am golden. My engine once overheated on Us 1 near Marathon heading toward Key West as a airplane had a overheat landed on the roadway and blocked traffic. I want to have as much heat dissipation as possible. I trust GM has thought of all these quandrys in the engineering division.

91 Tex Excuse my lack of engineering experience I guess vacumm brazing sounds like a welding function for what part of the vehicle???:confused: and what vehicles did you work on??? Thanks again for the input I respect that from someone who is on the manufacturing side...

Zonie I did the same thing for my 92 GMC Starcraft custom van 350 motor for my road trip up the east coast from Ft Laud to Maine, Washington DC New York and New Jersey. I didnt pull anything except for family inside the vehicle.
 

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2011 CTS V Coupe 700HP, Turbocharged 99 STS 700+HP
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I put an external tranny cooler on my STS up under the passenger side front wheel well. It's very small, compact & fan cooled. I got it because of the extra heat generated from my 3600 stall converter. It does an excellent job of added cooling.
 
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