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Old 08-29-2000, 03:04 PM   #1
incorporeal
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Angry AFC... problems....Auto tranny cooler?

Ok I think I have a phantom living under my dash.....Heres the problem John from JCSports and I have been working on my car (MY00,auto tranny {sorry}) all day Friday and all day today. We have installed the afc, checked the wiring a billion times and have tried numerous things to get rid of the stupid "At oil temp light" It comes on after the car has been ran hard, Then when you turn the car off and start it again the light goes away. On the past days when we have been testing it, it has been around 90 degrees outside, so I think the tranny fluid is heating up due to the increase in HP. We disconnected the AFC for now, until we can get this fixed. I have had a few possible solutions to this sent to me...First is changing the fluid to synthetic, the second is to get a transmission cooler. Has anyone installed one of these in an auto tranny, or does someone know where to gat one and for how much$$. THANK YOU in advance for your comments and suggestions,
zach jamsay
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Old 08-29-2000, 03:34 PM   #2
prezios
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I installed a trans Oil cooler very easy to do and only cost $39 at pep boys

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Old 08-29-2000, 03:55 PM   #3
Tim Prudence
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This sounds weird, I don't think that an AFC and air intake would increase horsepower enough to necessitate a transmission cooler.

Are you positively sure that the AFC is hooked up properly? Do you have the sensor type set properly?
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Old 08-29-2000, 03:59 PM   #4
prezios
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I agree with you Tim it still sounds to me like something is not hooked up right. The sensor type should be set to #4. Check that out first. Anyway I put in the trans oil cooler just for a little insurance.
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Old 08-29-2000, 05:15 PM   #5
incorporeal
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Wink

Thank You guys, If anyone lives in Texas Trey Cobb at Cobb tuning is working on a tranny cooler and needs a guinea pig car. Any more suggestions??
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Old 08-29-2000, 05:17 PM   #6
incorporeal
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Oh yea, I have an Underdrive Pulley, JCSports Intake, high flow fuel pump and a Stromung dual tip exaust, But I dont think that just those little things crank up my HP that much.

[This message has been edited by zachjamsay (edited August 29, 2000).]
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Old 08-29-2000, 07:04 PM   #7
spshultz
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Zachjamsay

I thought the car that Joe bought from Mark (the white turbo auto) had a tranny cooler on it. Or did they finally swap the auto out for a stick?

(I got to ride in it when Mark still had it and for an auto it was darn quick)

Shawn
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Old 08-29-2000, 08:56 PM   #8
incorporeal
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Smile

I just got the idea to do a tranny cooler today, and haven't talked to anyone at Jc's so I dont know what they think about it.
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Old 08-29-2000, 09:00 PM   #9
Subie Gal
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www.summitracing.com

B&M is the manufacturer that makes one for the auto tranny. I myself am in need after boiling my tranny fluid... oops
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Old 08-29-2000, 09:44 PM   #10
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I had a ride in the JC Sports automatic tranny turbo 2-3 weeks ago at an autocross, and Joe had taken off the IC and sold it to someone - so it went from 14psi (6,000 feet above sea-level) to 7 psi, so it wasn't that strong.

It was slow off the line, but once the turbo kicked in, with left foot braking he could keep the boost up. He'd come across the finish line at 60mph, when I was finishing at 55mph. Somehow I managed to run that autocross over one second faster than his turbo, but it might have been because he really wasn't trying hard either. He certainly didn't seem like he was concerned about posting a fast time, and he took the turns kinda slow (no sliding or squeal, etc).

And, the automatic tranny really slows it down on the launch. Bohdi (paul) gave me a ride in his 5 psi stage I JC Sports Turbo, and with lower boost it pulled harder with his 5 speed. I'm guessing Bohdi's RS would have beaten my old '93 SHO fair and square in a drag race (that's about 1.5 seconds off the stock 0-60 time). Now I can't stop thinking of how I'd like to find a way to build a 5 psi turbo for under $1,500.

I missed the chance to buy Paul's used turbo when he wanted to buy a house, but I spent the money on parts for building up my intake business instead...

Oh well, Point is, it still has the automatic in it, but I don't know if it has a tranny cooler.

Larry www.ImprezaRS.com
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Old 08-29-2000, 09:56 PM   #11
98Gal
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I just put one on last week. I should have had it done 70,000 miles ago but oh well. I have a UR pulley, pipercross drop in filter and stromung dual tip done so far. The thing is, i deliver so that's the main reason i got one. I got the one prezios mentioned for 20 bucks. It couldn't hurt to put one on your car
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Old 08-29-2000, 10:02 PM   #12
incorporeal
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If Auto Zone didn't close an hour ago, I would be putting one in right now...
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Old 08-29-2000, 10:07 PM   #13
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Zach

I have been going over this with a tech at the dealer ship where I also work and with Joel (JC SPORTS). WE are finding some pretty strange things in the wiring looms. I just wanted you to know that I hadn't given up on this. In the 99 model year there are 2-3 different wiring diagrams for the car some are Forester and some are Impreza. We are finding something similar with the 2000. We will get it.

I do have a trans cooler on my car. You are welcome to stop by and drive nmy car and check it out. I will be in the warehouse WEdnesday night (7:00 pm-11:00 pm) and all day Friday (8:00 am-11:00 pm). I plan to take this weekend off.

Thanks
JC
 
Old 08-30-2000, 04:04 AM   #14
prezios
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Here is a good web page with installation instructions for the trans oil cooler.
http://members.tripod.com/karguyzine/mod_atcooler.html
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Old 08-30-2000, 05:19 AM   #15
Webber
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Thumbs up

With no malice or bad intent, why do some
owners of A\T have to apologize for owning
one? I have a MY2000 and I love mine! My
second car is a 95 300ZX NA 5 speed and I love it too!
When I test drove the 5 speed
MY2000 at the dealer I couldn't believe
how, well without mincing words "cheap"
it felt compared to my 95 ZX. I've done
searches in both the Tech and General
forums and there is a consensus of
M\T owners that the MY2000 M\T is a troubled
unit. Don't misread what I've written, I know
that there are those that love their M\T
as much as I love my A\T but do a search
and find out how many have been back to the
dealers already to get it fixed and how many
are going through problems right now!
Just look at the aftermarket upgrades for M\T's--shifters,
bushings, clutch upgrades etc. I am not trying to
instigate anything here just trying to say that A\T
owners should be proud and not apologize for getting or having one!
"Life is a journey. Enjoy the ride!"
In a A\T or M\T!
Webber


[This message has been edited by Webber (edited August 30, 2000).]
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Old 08-30-2000, 08:25 AM   #16
spshultz
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'12 SantaFe

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I feel that the auto just eats a bit to much power. I just wish that SOA had made the 2.5RS A/T much more firm in its shifts.

ooop, works call.

Shawn
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Old 09-02-2000, 04:29 AM   #17
alastair
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zachjamsay, i had that same light come on last month. i was on a 2 day road trip; about 700 miles each day. the weather was in the 90's and humid and i has been driving pretty hard in DC traffic. the light came on and was blinking. i have a recently installed high quality intake and a cat back exhaust. no other engine mods. the AT fluid level was ok and there was no burning smell present. we sat on the side of the highway for 20 minutes or so and the light was gone when i started the car again. it's been a bit of a mystery to me ever since. could the milage and "hard" driving (i just love to hear that intake) have contributed to overheating of the AT fluid? this does'nt seem right; but i know nothing about AT's.
i have heard there is a wide range of quality in the AT coolers that are available; do we have a consensus as to who's is the best? any thoughts on what may have caused your (or my) light?
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Old 09-02-2000, 04:40 AM   #18
prezios
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I think the TCU gets confused sometimes. The light came on for me twice in the past year and both times my car was not hot yet. I only drove 1 block to the highway and then I got up to speed and then the trans oil light is looking at me. Very strange. I just shut the car off and restarted and no more light. What do you guys think?
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Old 09-02-2000, 10:59 AM   #19
incorporeal
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Cool

I put in a cooler yesterday, and changed my A/T fluid to mobil 1 synth, it seems to work pretty good you can actually notice a difference. I dont know if this helped the problem with the AFC.. I did learn from Andy from Rallyspec that when the light is blinking, it is an error in the transmission, and when the light stays on steady it is from your transmission getting too hot.
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