Question about 2005 Chevrolet Express

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My 05 chevy express 2500 keeps coming up with p0758 and p0753

Ok so i changed my shift solenoid a and b which were on the codes i even tried my ignition switch and it still comes up as the problem. when i drive more then 25 mins on the road it does not wanna shift anymore and will be in same gear till god knows when.. i changed them twice and still comes up as the codes its a pain in the *** to keep changing so plz help..

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  • anatoliy Mar 31, 2012

    Also i bought my sensors at orilly at first and it worked just fine for 500 miles and than they came up again so i went to a dealer and bought them again and changed them but the second time i dint even drive 2 miles and the light came up again.. ppl told me to change the ignition switch and i did and now my heater does not work..

  • anatoliy Apr 07, 2012

    i fixed my van for all you followers ok so it was a wire that was burnt so check your ground wires and hope this works for you.. so glad shes back to running great. i will post wat ones it was for me.

  • Jared Berkowitz
    Jared Berkowitz Mar 19, 2016

    I'm having the same problem. Did you ever post which wire was burnt. If so anyway of reposting or directing me to it.



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  • Chevrolet Master
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DTC P0753 1-2 Shift Solenoid Control Circuit - this code does not mean the shift solenoid is bad . It states control circuit , wiring , the driver inside the PCM , power to the circuit .
Install a scan tool.
Turn ON the ignition, with the engine OFF.
Important: Before clearing the DTC, use the scan tool in order to record the Freeze Frame and Failure Records. Using the Clear Info function erases the Freeze Frame and Failure Records from the PCM.
Record the DTC Freeze Frame and Failure Records.
Clear the DTC.
Is DTC P0758 or P2761 also set?
YES - Go to Step 3
NO - Go to Step 4
Inspect the IGN 0 fuse for an open. Refer to Circuit Protection - Fuses in Wiring Systems.
Is the fuse open?
YES - Go to Step 12
NO - Go to Step 5
Use the scan tool in order to command the 1-2 SS valve ON and OFF three times while listening to the bottom of the transmission pan, a stethoscope may be necessary.
Does the solenoid click when commanded?
Go to Intermittent Conditions in Engine Controls - 4.8L, 5.3L, and 6.0L
Go to Step 5
Turn OFF the ignition.
Disconnect the AT inline 20-way connector. Additional DTCs may set.
Install the J 44152 jumper harness (20 pins) on the engine side of the AT inline 20-way connector.
Turn ON the ignition, with the engine OFF.
Using the J 35616 GM terminal test kit, connect a test lamp from terminal E of the J 44152 to ground. Refer to Automatic Transmission Inline 20-Way Connector End View .
Does the test lamp illuminate?
YES - Go to Step 6
NO - Go to Step 15

This is a long diagnostic flow chart an I would think you do not have a scan tool . Your best bet is to take to a transmission shop .

Posted on Mar 19, 2016


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Posted on Jan 02, 2017



  • 58 Answers

SOURCE: trouble codes

You might want to check for a mouse nest under the Underhood fuse block, seen them chew up wiring under there many times.

Posted on Nov 05, 2008


Dennis Mulford

  • 1055 Answers

SOURCE: 1998 Chevy Cavalier-electical

youve either got a bad connection at the new battery or the power wire is shorting out did he have too pull the cables too get them too fit?

Posted on Feb 27, 2009


  • 61 Answers

SOURCE: 1997 blazer sluggish in drive reverse is fine

P0740 is TCC circuit malfunction P0753 is shift solenoid A circuit electrical P0758 is shift solenoid B P1406 is EGR pintle position and P01860 is TCC circuit.

Posted on Feb 28, 2009


Ronny Bennett Sr.

  • 6927 Answers

SOURCE: 2000 Chevy Express 1500 also shifting hard

try LUBE GAURD at NAPA it is a additive that is synthitic,sticking valves sounds like the colpret

Posted on Jun 28, 2009


  • 2 Answers

SOURCE: 1992 chevy z28 wont start changed everything the


Posted on Aug 20, 2010

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Rather then just replacing parts do you know how to do continuity checks on a electrical circuit ? IT could even be the driver inside the VCM - vehicle control module .
The 3-2 shift solenoid (SS) valve assembly is a normally-closed, 3-port, on/off device that controls the 3-2 downshift. The solenoid attaches to the control valve body within the transmission. The solenoid receives ignition voltage through circuit 1020. The vehicle control module (VCM) controls the solenoid by providing a ground path on circuit 687. During a 3-2 downshift, the 2-4 band applies as the 3-4 clutch releases. The VCM varies the timing between the 3-4 clutch release and the 2-4 band apply, depending on the vehicle speed and the throttle position.
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