03 CHEVY S-10 v-6 vortec/PO 758 trans code

OK it's a 2003 chevy s-10 v-6 vortec Pick Up truck crew cab 130,000 miles on it coming home from the PA area stopped for gas as I was pretty low WOW got gas in Paterson NJ $ 2.15 a gallon wow thats cheep well I will fill up I get 3 blocks from the gas station and the Check engine light comes on and it dosent feel like its moving anywhere first thing I say is bastards put water in the gas and screwed up my car no its just coincidence the truck runs fine so I rule out the bad/gas theory i get home only with 2 & 3 gear working no 1 st or 4 th gears I guess a fail/safe in DRIVE I hit the gas and she acts as if I have the brake on and the truck does not want to go any where( very very slow ) but if I place it in first gear It will go ....not like it's normal but enough to get it up to 30 or so and manualy shift to 2 or 3 and will go ok but at 70MPH it's reving at 3,000 RPM's so I guess it's in 3 and I have no ( 4 th ) overdrive well I goto autozone get the check engine light code and it comes up PO 758 shift solenoid electrical a $ 20.00 dollar part but someone told me have it checked by a MECH. because it could be giving you a false code and the trannmission is really shot - needs a rebuild what do you guy's think...... thank you in advance ANT

Sorry guy's it's a 2004

Never heard of a false code transmission shot deal on that code.

Code is for a 2-3 shift valve problem or curcit problem.

Get the solenoid from your chev parts dealer.
And when pan is down wirh key on confirm 12 volts power on red wire to solenoid.
Also make sure solenoid wire plug is pluged in good.
If 12 volts to it key on and pluged in good replace solenoid and give it a try.
May also be a good time to change transmission filter.

One word of caution when installing transmission pan be careful and do not hit or bump solenoids/the plugins on back solenoids.
May have to slide crossmember back to get pan off and on easy.
when done and full of fluid.
Clear codes and drive it.
Let us know how it goes.

Also check dealer and or owners maual and dip stick for correct transmission fluid.

OK FIXED all it was was a bad Selonoid so while I had the pan down I replaced the both selonoids so I would not have to do it again in 5 months of so thanks for all your help.

You are welcome and thanks for posting back the fix and how it went.
Good luck

You are welcome and thanks for posting back the fix and how it went.
Good luck
i had this same problem pop up yesterday on my 2000 blazer code 758. now i can fix it myself i thought i had to take it in for service i drove 40 miles from work in one gear but it seems ok otherwise i was driving at 75 when i noticed it. when i got to local traffic it was hard to start off from a stop but it got going ok. kinda like i was in 4w lo. any way u helped so thanx dan

i had this same problem pop up yesterday on my 2000 blazer code 758. now i can fix it myself i thought i had to take it in for service i drove 40 miles from work in one gear but it seems ok otherwise i was driving at 75 when i noticed it. when i got to local traffic it was hard to start off from a stop but it got going ok. kinda like i was in 4w lo. any way u helped so thanx dan

You are welcome.
And welcome to AF on your first post.
If you have any problems with fixing it.
Start a new thread and and post back for help.