ATX is acting up, Please help

[gurucomputers]

My 94 SHO Trans is really acting funny. Yesturday it was fine now today ??? I went on a quick 20 drive to Wally World and on the city street I noticed that it would slam into gear going from 1 to 2 and when slowing down it would slam into gear going from 2 to 1. Hard enough to make the tires chirp. I checked the fluid and was fine "Good color, full, and no burnt smell". I decided to drive it some more, at wide open throttle it seems to be happy. It shifts firm at 7000 through all gears including OD. The problem is when you are driving on a 35MPH street where you don't throttle it up much just normal criusing. I then went out and manually shifted it through 1-2-D and moved the shifter up at about 4000 under normal cruising throttle. When it shifted up there was no hunt for the next gear nor did it seem to slip any by watching the tach. I did both the KOEO and KOER test. What I got which has been an ongoing issue is the 176 "HEGO lean", 332 "EGR Not detected" and 543 "FP Circuit failure" codes. I don't beleave this has anything to do with it cause I have been troubleshooting these codes for a while and that another issue anyway. Gears 2-3 and 3-4 seem just fine. Any body have a direction to go in

 

[n8rsk8r]

Oh MAN!!! yOu too huh? there is another tread bout this, does this come and go? I take it yes, how many miles, what year and the whole 9? How is your key? does it just turn in a 360, I mean the bezel around it? and the egr spot that goes into the block is insanely small, it is waay to tiny, butis machined in. This will clog up FYI. That is probably why you are getting those readings. Let us know what is up with the car though.

 

[gurucomputers]

Well this is the first day that it has happened, did'nt want to drive it anymore cause I don't want to make it worse if it is something simple if you know what I mean. The Sho is a 1994 with 203000 miles. All original, no mods. AS far as the key goes well lets just say it works, the tumbler is extremly loose and the door dinger continues to go until you pull the key out and wiggle the tumbler a bit. I will check the egr out for the clogs tomorrow, are you talking about the little vaccume *** on the egr that the vaccume line plugs into? AS far as the 176 code goes i'm baffled, replaced both O2 sensors "Bosch replacements from NAPA".

 

[revhardSHO]

Your transmission sounds like its on its way out. Harsh shifting and general confusion are symptoms of this. When was the last time you changed your fluid and filter? First thing I would do...

 

[SHOtimer]

Wow!..are you saying you have 203k on the original tranny!? You might just have a bad VSS, but I would put my money on the tranny goin out..especially at that mileage.

Doug

 

[n8rsk8r]

I have a no shift to second gear, I have first and reverse, and no second and beyond, I have a spectrum engine alylizer that is a rotunda/allen unit from a ford service bay, guess this dealer was doing double loans on cars and the irs shut em down, anyway, I am going to run some tests with it on the sho tomorrow, I will let everyone know what it is, but if yours has 20.K you are a one in a kind type of guy, I would go buy lottery tickets and smoke and do all the stuff they say will **** you cause you are the luckiest man on earth!!!!

 

[gurucomputers]

When was the last time you changed your fluid and filter? First thing I would do...

Well this car is my wifes pride and joy. I change the oil every 3000 and the tranny fluid & filter every 15000.

You might just have a bad VSS, but I would put my money on the tranny goin out..especially at that mileage.

I read on here about the TSS. Its easy to replace and I am going to start there. I have heard the VSS is about an 8 hour job. My question is to you have to pull the trans apart to chage the VSS, if it is on the ouside it shouldn't take no 8 hours. The TSS looks like a 5 min job.

I would go buy lottery tickets and smoke and do all the stuff they say will **** you cause you are the luckiest man on earth!!!

I will do that today, maybe I will win

I drove the car this morning and well the same deal, but this time it through me a error code of 452 "Insufficient input from vehicle speed sensor (VSS)". So I am thinking the VSS sensor is the problem.

 

[musiccitysho]

Yes, the TSS is a snap through the wheelwell, the hardest part I had was finding one, seems to be a dealer only part. Make sure they give you the TSS and not the VSS like they almost did to me, I had to walk them through it, they call it something else. The part # is F1DZ*7M101*A and 2 years ago was 24.29.
Both times my VSS needed to be replaced I saved some skin and had a trusted shop do it, the book calls for 3 hours shop time and IMO worth every dime, but dont be surprised if the tech asks you to never bring your car in again once he's finished, they even hate the job. You dont have to pull the tranny apart but on a ATX you have to drop the Y-pipe and just about perform child birth to get it out. Not a job I wanted to do on jackstands lying in my driveway on a day off!
BTW In my case I had stored codes for both failures.

 

[Val]

Wats TSS? I have a VSS which I havent installed yet. My tranny shifts fine though, just that speedometer is delayed. I need a new VSS right?

 

[sho 'nuff]

TSS=Turbine Speed Sensor/Transsmission Speed Sensor

every place I went tried to sell me a VSS when I was lookin for this part.

 

[gurucomputers]

Is the the VSS (Pics)

This is what I got from NAPA for $24. Is this the right part "The VSS"?

Thanks,
Rob

 

[gurucomputers]

VSS? (Pics)

This is the part I got from NAPA for $24 is this the VSS?

Thanks,
Rob

 

[gurucomputers]

TSS=Turbine Speed Sensor/Transsmission Speed Sensor

every place I went tried to sell me a VSS when I was lookin for this part.

Try NAPA and tell then you need the Transmission Speed Sensor. They seem to have the best selection of SHO parts. I have heard it is a dealer only item for about $25.00.

 

[Val]

This is the part I got from NAPA for $24 is this the VSS?

Thanks,
Rob

Yup it is. Now will the new VSS fix my delayed speedometer problem?

 

[gurucomputers]

Yup it is. Now will the new VSS fix my delayed speedometer problem?

I would think so but don't quote me. Cause it look like the speedo cable plugs right into the top of the VSS.

 

[musiccitysho]

I never had any speedometer issues when my VSS went out...either time, just sluggish unpredictable shifting thats really ******* the trans., stalling out while stopped... say at a red light and a stored code. It maybe possible that the speedo cable isnt seated correctly in the sensor.

 

[Sho_Freak]

Your transmission sounds like its on its way out. Harsh shifting and general confusion are symptoms of this.

my tranny has been shifting hard for over 10k miles, and its not going out.....its nothing like explained here tho, just stabs the 1-2 and 2-3 shifts, and its stock rebuilt tranny, no mods.

 

[gurucomputers]

VSS Accomplished, Problem solved

Well six hour of enduring pain and headache, the job is complete. I will be posting a how to soon on changing the VSS. I will say it is not easy, not in a manner that it can't be done, just very hard to get to. If you have to change the VSS be sure to get your curse word dictionary out cause you will need it. I said some curse words that I am sure don't even exist. You will also need to sleep well the night before so your patients go a long way, and lots of coffee.

The web address that it will be posted to will be:
http://sho.guru-computers.net/howto/vss.html

It should be up sometime by this weekend.

 

[Sin City SHO]

I was told to just take it easy till it goes, yeah right. I'll keep punching the pedal hard till it goes!