Shift Solenoids

[brandon254]

ok replaced the cap and car stays at 205 degrees . mike i was asking about draining the transmission fluid. without wasting any . thanks for the help you guys very help full. the car actualy runs beter too. hose actualy has pressure now. the shift solenoids did not come in today so i will be installing them tomarow. the guy at electrical advantage sent me a new set or retaining clips and a new screen and bracket and the 2 solenoids. bbf witch one is the shift a solenoid?

[scott y]

I could be wrong but isn't the 94 sls a 4t60e?

[BodybyFisher]

As far as draining without wasting any, the procedure I gave you was the only one. Drain till it spits from the upper cooler line, there will be tranny fluid in the pan when you take it off.

I would not re-use the fluid you drain out, I would use new fluid.

Here is a photo from when I took my pan off these are the shift solenoids

In this scan, the shift solenoid is #909, one is installed here and the other is exploded view

The exploded view shift solenoid in the this photo is referred to as the 1-2 shift solenoid valve I would assume A, the other one that is installed is the 2-3 shift solenoid valve, I would assume B

[BodybyFisher]

I could be wrong but isn't the 94 sls a 4t60e?

4.9 = 4T60E

4.6 NS = 4T80E

[BodybyFisher]

ok replaced the cap and car stays at 205 degrees . mike i was asking about draining the transmission fluid. without wasting any . thanks for the help you guys very help full. the car actualy runs beter too. hose actualy has pressure now. the shift solenoids did not come in today so i will be installing them tomarow. the guy at electrical advantage sent me a new set or retaining clips and a new screen and bracket and the 2 solenoids. bbf witch one is the shift a solenoid?

So the verdict is that the CAP was bad it looks like, I am glad you are running cool again

[CarlaValentine]

I believe the 4t80e replaced the 4t60e in 1994 with the introduction of the Northstar to the Seville.

[scott y]

Terribly sorry I just looked up some info and..I was wrong

[scott y]

Head in gear B4 mouth next time

[KHE]

ok replaced the cap and car stays at 205 degrees . mike i was asking about draining the transmission fluid. without wasting any . thanks for the help you guys very help full. the car actualy runs beter too. hose actualy has pressure now. the shift solenoids did not come in today so i will be installing them tomarow. the guy at electrical advantage sent me a new set or retaining clips and a new screen and bracket and the 2 solenoids. bbf witch one is the shift a solenoid?

DO NOT reuse the trans. fluid. That would be asking for problems. Just go to Walmart and buy a couple of 1-gallon jugs of SuperTech Dexron 3 fluid. Think of it this way - you're getting an almost 100% fluid change with the solenoid R&R.

[brandon254]

ok ill do that. bbf the shift solenoids i replaced were not strait like that in the photo thay were turned at a slight down position where the connector is . also how would i do find a short in the wiring harness from transmission conector to pcm? would i have to disconnect the red connector and individulay check each wire for continuity between other wires on the conector?if im not mistaken the short creates a magnetic field so would a compass find the short?

[BodybyFisher]

Here is the tranny plug, connector end view

Pin #

Wire Color

Circuit

Function

A

0.8 LT GRN

1222

1-2 Shift Solenoid (1-2 SS) Valve Control

B

0.8 YEL

1223

2-3 Shift Solenoid (2-3 SS) Valve Control

C

0.8 PPL

1228

Pressure Control Solenoid (PC Sol.) Valve HIGH Control

D

0.8 LT BLU

1229

PC Sol. Valve LOW Control

E

0.8 RED

741

Transmission Solenoid Power

L

0.8 BRN

452

Transmission Fluid Temperature (TFT) Sensor LOW

M

0.8 GRY

1227

TFT Sensor HIGH

N

0.8 PNK

1224

Range Signal A

P

0.8 ORN

1226

Range Signal C

R

0.8 DK BLU

1225

Range Signal B

S

0.8 BLK

1330

AutomaticTransmission Input Shaft Speed (A/T ISS) Sensor HIGH

T

0.8 TAN

422

Torque Converter Clutch Solenoid (TCC Sol.) Valve Control

U

0.8 WHT

420

Torque Converter Clutch Pulse Width Modulation Solenoid (TCC PWM Sol.) Valve Power

V

0.8 GRN

1331

A/T ISS Sensor LOW

[brandon254]

check out his website bbf let me know if it is an acurat post www.v8mr2.com/reference/transaxle4.pdf

[BodybyFisher]

check out his website bbf let me know if it is an acurat post www.v8mr2.com/reference/transaxle4.pdf

I saw this statement

Check for electromagnetic interference on VSS circuits due to close proximity to high voltage source

If this is the statement you are referring to above regarding the short and using a compass, you are off base with that thinking. EMF is created by ignition wires, if the ignition wires get close to circuit boards (wiper module or PCM), they can create interference. I am not electronics expert but I dont think a compass can be used as a detector for EMF, not that I have ever heard anyway. You have jumped to a short in the wiring when it could have been a bad solenoid or installation or check ball.

You need to 1) install both shift solenoids again, orienting them like you saw in the photo I posted above, I do not believe that it matters how they sit, but all photos I have seen have showed the solenoids nicely tucked in. 2) be 100% sure that the check balls are located in the correct locations. 3) inspect the gasket material where the lower control body sits and look for cracks or voids, if you see any, you will need to replace the gasket 4) if you feel the need (I don't think you need to do this), you should test the shift solenoid wires with an ohm meter while the solenoids are out, use an ohm meter on the solenoid leads checking back to the plug A and B, you will need to disconnect the plug end to do the testing, do NOT test back to the PCM or touch the PCM side of the plug, you can damage the PCM.

Regarding the PCM, be SURE it is the correct PCM, I made a statement in a prior posting and you need not clarify it, I doubt that a PCM from a 4.9 would even start the car but you stated the PCM came from a 94 DEVILLE, that was a 4.9, please clarify.

Check balls

Check Balls

An example of a damaged gasket, see the top right side of this gasket and you will see a small piece broken out

Close up of Void

[brandon254]

pcm #16197429 is for 4.6l 1994 deville-seville. i checked it last night. so pcm is correct. also i did a continuity test with transmission unplugged and no high resistance or continuity between any solenoid wiring. i am worried about the issue with the external wiring. when i bought the vehicle the car was full of electrical shorts . i found them buy using a curcit breaker and a compass . but like u stated above this is a diferent type of short. is their a way to disconnect the pcm and probe the actual connecter going to the pmc and check for high resistance in the wiring or continuity between the wiring. if disconected at both ends no continuity should show. and no high resistance. if i find continuity that would indicate a short. i have tried this a few times when an idiot light came on in my 93 the stop engine temp, and the charge light. what it was i disconected the pcm and back probed the conector with it disconected. and the continuity was beeping like crazy. so i removed loom at the middle and at the end i found 2 wires wraped tight around each other and it had rubbed thru the wiring. in thees cases it was a signal wire to ground wire short . in witch the compass could not pick it up. so i was wonering if their is an easyer way?

[BodybyFisher]

The 94 DEVILLE had a 4.9

The 94 DEVILLE CONCOURS had a 4.6. Typically the Concours had the STS/ETC version of the Northstar platform. You do not appear to have an STS, so you have the base Northstar platform. IF that PCM was for the STS/ETC/CONCOURS level of NS platform, you could have problems, just check it again. This link tells me that the Concours in 94 had 270 hp at 5600 rpm, same as the NON STS 94 Seville. So what you have is the PCM from a 94 Deville Concours

http://motorera.com/cadillac/cad1990/CAD94D.HTM

The rest of your post jammed my head, maybe someone else can help. Good luck with the solenoids, I'v done all I can, let us know how it works out

[brandon254]

the guy i bought it from said it came out with the y in the vin. and the original computer was damaged and the computer service number was almost all removed except for the first 4 numbers. it just has deville written on the front of pcm also it has 8241

[BodybyFisher]

the guy i bought it from said it came out with the y in the vin. and the original computer was damaged and the computer service number was almost all removed except for the first 4 numbers. it just has deville written on the front of pcm also it has 8241

How was it damaged?

I would stop worrying about ancillary stuff right now

I would

1) install the solenoids correctly (following what I said to be aware of above)

2) make sure the filter is installed correct before I put the pan on

3) check the continuity of the two solenoid wires back to the plug and check for shorts

4) put fluid in

Test drive it and proceed from there

[brandon254]

the car was damaged because the laidy drove it thru deep water and ruined the motor and computer. she took it to a mechanic and put another motor and computer the computer had greese all stained on the service tag . so i called the junk yard they confirmed that the computer was out of a 1994 cadillac deville with the 8th digit y and my vehicle is a 94 seville with 8th digit y . so all should be good. the mail has not arived. so as soon as it does i will get started on the shift solenoids

[brandon254]

i drove the car today. and it would get 225 and kick the fans on and go down to 215 . with the ac on it ran 210-219. so this is normal?

[PAUL T]

The temps you are getting are not out of the ordinary. My 97 Deville runs from 200-215. The only thing I can think of that you might verify is that the thermostat is in correct. Sometimes people get them in backwards. http://caddyinfo.ipbhost.com/index.php?showtopic=28294

The only 94 Deville with the northstar is the Concours, I think you are o.k. on the PCM if it was a "y" PCM. As far as the shift solenoids, if I remember right the part numbers on the solenoids are the same but the location determines which one is "A" or "B". Good Luck.

[brandon254]

i found out today that the motor was replaced when the car was driven through deep water the transmission id tag shows it to be a 94 . the motor has a tag on the side that said 2002 it is located on passengers side. this motor was replaced a few months before i bought car and come to find out the laidies son hooked up a cd player and cut original wiring harness and it fell behind the dash and shorted out the computer and the instrament cluster. is what the mechanic said that installed the motor the 'mechanic' also left the transmission wiring harness disconnected when they sold me the car . so i told him he did not plug the plug in and thats why the laidy sold it so cheap. the mechanic also is the reason why the pan was bent and the holes where stripped. i rethreaded some of them and replaced the pan and bolts. the laidy told me he replaced shift solenoids right before i bought it. i bet if he would of plugged the harness back up i would not be having this problem

[brandon254]

all thees codes were current before i plugged the harness up. e028,e029,e039,e056,e057,e076,e094,e117. now it says e029 thats it.

[BodybyFisher]

all thees codes were current before i plugged the harness up. e028,e029,e039,e056,e057,e076,e094,e117. now it says e029 thats it.

Your first post said this "e029 is the code it is giving me "

You mean you had all of these codes as CURRENT?

P028 (E028) ......... Open 3rd or 4th Gear Shift Or Shorted 2-3 Shift Solenoid [VCC]

P029 (E029) .............. Transaxle Shift 'B' solenoid problem (1st, 3rd, 4th gear)

P039 (E039) ..... Torque Coverter Clutch/Viscous Converter Clutch Engagement Problem

P056 (E056) ........................................ Transmission Input Speed Sensor

P057 (E057) .......... Shorted 4th Gear Switch Circuit Or Shorted 3-4 Shift Solenoid

P076 (E076) ......................................... Transmission Pressure Solenoid

P094 (E094) ............ Transaxle Shift "A" Solenoid Problem (Vehicle Speed Sensor)

P117 (E117) .................... Open/Short Solenoids/Solenoid Wiring (Transmission)

Brandon, why didnt you inform us of these codes? We were terribly misdirected on this problem, ALWAYS inform us of CURRENT CODES!!!!

What harness are you talking about?, the main harness with the round connector I posted the diagram to above?

If that is a 2002 engine, I do not see how it could work at all let alone be installed, your 94 PCM should be totally confused. OR, is this a 94 engine that was rebuilt in 2002? The engine controls on an OBD2 2002 should not be recognized by an OBD1 PCM

I was looking for a way to separate your posts from MACs thread, Bruce can you split this thread apart and create a thread just for Brandon?

[Bruce Nunnally]

I split this out as a separate thread from Mac's original problem which is now here: http://caddyinfo.ipbhost.com/index.php?showtopic=28472&view=findpost&p=144059

[BodybyFisher]

I split this out as a separate thread from Mac's original problem which is now here: http://caddyinfo.ipb...ndpost&p=144059

Thanks Bruce, Mac's original post had become hijacked and this post is beginning to change from just shift solenoids and Brandon really needs his own thread on this