2000 Chevy Express Replicing silinoids

which tranny do you have ? most common Its in the valve body

I went to a dealer and they did diagnostic on my van. The said that my transmission won't shift after 3 gear/ And computer shows thtIt needs new 3 & 4 solenoids in my transmission. So I have no idea which ones are hey

ITS deepened what tranny you have but most of solenoids are in the valve body as you

[quote:58f189a588="BMRFIXIT"]ITS deepened what tranny you have but most of solenoids are in the valve body as you[/quote:58f189a588]
Thanks again
My engine is V8 5.7L rear wheel drive

you gave me the engine size not the tranny is it 4L60E or 4L80E This is the location of your sensors and solenoids in relation to the tranny if you have not done a thing like this before may I suggest get few estimates tranny oil pan has to be removed and filter too good luck

I think it was 4L80E. Thanks for your help. Last question, do you know if there is repair diagram for my car on line? So I can do repair myself.

you can try :




https://www.2carpros.com/kpages/auto_repair_manuals.htm
or check you local part store some may have paper manuals
good luck
let me know

I will try it. Thank you again

Hi BMRFIXIT.
I'll be doing diagnostic again today. And after it, if I'll have the tranny, could you give my ecxect part I'll need to replace?
Thank you


[quote:85b50dbf75="BMRFIXIT"]you can try :

https://www.2carpros.com/kpages/auto_repair_manuals.htm
or check you local part store some may have paper manuals
good luck
let me know[/quote:85b50dbf75]

if you can get the code I will do the research for you
let me know

Ok here is the info computer gave as.
PO758 2+3 gearand sircuit fault

I hope thats enough of info to get the part I need

Thank you

[quote:c98907ef1f="BMRFIXIT"]if you can get the code I will do the research for you
let me know[/quote:c98907ef1f]

Ok here is the info computer gave as.
PO758 2+3 gearand sircuit fault

I hope thats enough of info to get the part I need

Thank you

Sorry I’ve been under the weather !

As in any electric issue fuses should be check 1st
you need to check fuses
then move on to the wiring harness and check for cuts and shorts
just give it a good look make sure no cuts
check the 20 pin tranny connector
and if all good
remove tranny oil pan


disconnect wiring harness assembly from solenoid and replace

Ater I'll chrck all electricals, which solenoid do I need to replace?

[quote:f0e570caab="BMRFIXIT"]Sorry I’ve been under the weather !

As in any electric issue fuses should be check 1st
you need to check fuses
then move on to the wiring harness and check for cuts and shorts
just give it a good look make sure no cuts
check the 20 pin tranny connector
and if all good
remove tranny oil pan


disconnect wiring harness assembly from solenoid and replace[/quote:f0e570caab]

You need the 2-3 solenoid order that then pull down tranny pan and replace

Ok Thank you so much for your help. I'll try to do it next week and I'll let you know of my resoults

Do you know any good web sites where I could buy this solenoid? If you do please let me know


Thanks

Hi,
We have changed a solenoid and still have same problem.
Shift stays on 3rd gear.
I didn't do diagnostic yet. But it feels like nothin have changed in how engine runs

Check the solenoid power circuit from the ignition switch. You might have a faulty ignition switch that doesn't feed power to the transmission.

How do I check it. Is thehre a color for that wire

There are two wires going to the solenoid. Connect a volt meter to one of the wires and the other lead to a good ground. You should see 12 volts DC. If not, connect to the other wire and a good ground. If you still don't show 12 volts, check the trans fuse. If it's good, replace the ignition switch. If you do have voltage on the solenoid wiring, replace the solenoid. Push on the shift valve to make sure it's not binding in the valve body.

Thank you for your advise. I will try it and let you know of outcome.
Best regards

[quote:0e5340fdee="dennyp"]There are two wires going to the solenoid. Connect a volt meter to one of the wires and the other lead to a good ground. You should see 12 volts DC. If not, connect to the other wire and a good ground. If you still don't show 12 volts, check the trans fuse. If it's good, replace the ignition switch. If you do have voltage on the solenoid wiring, replace the solenoid. Push on the shift valve to make sure it's not binding in the valve body.[/quote:0e5340fdee]