How to know if your Silverado is delayed shifting?
Check the yellow spring inside the accum housing for breakage. Also, if the accumulator housing walls are scored, the housing must be replaced. Easy fix in the pan. 4. 1-2 shift is delayed and harsh, may not shift into OD: Check TPS for smooth and linear electrical response over the entire range of motion.
Is there a GM hard shift transmission defect?
Ultimately, GM owners and lessees face mounting repair costs because of the alleged defect, the complaint says.
What to do when 2.1-2 shift does not happen?
2. 1-2 shift does not happen at WOT (Wide Open Throttle) until you let off the gas: Best case: try replacing the TPS. Middle case: leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). Double check by using the pressure gauge and watch for a big drop when the PCM commands 2nd gear.
What happens when you change gears in a GM car?
“Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or ‘hard shift’ when the vehicle’s automatic transmission changes gears,” alleges the GM class action lawsuit.
When does Chevy Silverado shift into 2nd gear?
-In Drive, 1st engaged, no sleeping, at full throttle engine hit the rev limit and transmission won’t shift, shifts only when let off the gas. Same thing in 4HI or 4LO. – When I hit the throttle hard until 4000 rpm and let off it shifts at about 2500 rpm.
2. 1-2 shift does not happen at WOT (Wide Open Throttle) until you let off the gas: Best case: try replacing the TPS. Middle case: leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). Double check by using the pressure gauge and watch for a big drop when the PCM commands 2nd gear.
Ultimately, GM owners and lessees face mounting repair costs because of the alleged defect, the complaint says.
When to shift from 2nd to 1st gear?
– When I hit the throttle hard until 4000 rpm and let off it shifts at about 2500 rpm. When 2nd gear is engaged, If I continue with a heavy load on the throttle it downshift into 1st. To keep the 2nd gear, I must be soft on the throttle. I notice also that if I put the lever in 1 I don’t have engine braking ?