Intermittents drive me nuts!
I put a 59 *****'s wagon body on a 2000 Blazer chassis and drivetrain. All original wire harness from the Blazer.
Sometimes it works perfectly, I put it into drive and the transmission engages quietly and smoothly. Starts out in first gear, shifts smoothly through acceleration, Downshifts when I push on the throttle.This usually happens after I have drive it for a while , turn off the engine and start it up again while its still warm. It is a joy to drive when this happens
Other times it starts in second gear. I know this is going to happen because when I put it into drive I get a clunk sound as the transmission engages. When this happens it shifts into 3rd and 4th gear ( i think) through acceleration. It doesn't downshift when I push on the accelerator.
I occasionally get a code for Solenoid A.
I am also getting a code for cylinder 1 misfire. occasionally. I replaced the rotor cap and wires, and it sounds better, but still get occasional misfire.