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Old 05-23-2009, 12:17 PM   #6
blazee
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Re: 2000 Blazer Stuck in Third Gear

Quote:
Originally Posted by Carsrcool100 View Post
P0756 - Shift Solenoid B Performance or Stuck Off

Schematic


CIRCUIT DESCRIPTION
The 2-3 Shift Solenoid (SS) valve controls the fluid flow acting on the 2-3 shift valves. The solenoid is a normally-open exhaust valve. With the 1-2 SS valve, the 2-3 SS valve allows four different shifting combinations.

When the VCM detects a 1-2-2-1 or a 4-3-3-4 shift pattern, depending on the state of the mechanical failure, then DTC P0756 sets. DTC P0756 is a type A DTC.
That's one of about a dozen different codes that could illuminate the SES light, and put the transmission in limp mode. Let's wait until she posts the code number before guessing and posting what may be misleading information.
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