'06 trailblazer ext, 4.2l, 4x4. Had issue with power steering line leaking. Took it to a local shop to replace. Also replaced battery. When new battery installed, had issue with HVAC actuator, that selects between air vents on window, face or floor. Ordered and replaced actuator today. Went to go try and start, and there is no crank. I drove it home right before I started the actuator swap out.
All dash lights turn on, when key goes to crank position, lights go out, gauge needles drop (like when a dead battery) and there is no crank. Interior Lights and head lights all stay bright.
Checked battery voltage and it's good, it's only a week old. Pulled and tested starter relay, and it all tested fine. Jump 12 volts to pin 87 and I have crank. I found a video online about resetting the PCM by removing HVAC fuses and reinstalling them, which I did.
I am at a loss and don't know where to go back up stream and why the actuator replacement would have anything to do with all of this. This is our primary vehicle and need to get it on the road quickly. Thanks for any help or direction!
All dash lights turn on, when key goes to crank position, lights go out, gauge needles drop (like when a dead battery) and there is no crank. Interior Lights and head lights all stay bright.
Checked battery voltage and it's good, it's only a week old. Pulled and tested starter relay, and it all tested fine. Jump 12 volts to pin 87 and I have crank. I found a video online about resetting the PCM by removing HVAC fuses and reinstalling them, which I did.
I am at a loss and don't know where to go back up stream and why the actuator replacement would have anything to do with all of this. This is our primary vehicle and need to get it on the road quickly. Thanks for any help or direction!