Why does the Buick GL8 have strong gear shifting impact?

1 Answers
VonMaverick
07/25/25 1:24am
Buick GL8's strong gear shifting impact is mostly due to wear of the transmission valve body, reduced control pressure, low engine speed at startup, and the transmission oil pressure not being able to quickly rise to the standard value, which prevents the plunger from being kept in the correct position, resulting in incorrect startup gear and causing impact. Solution: For valve body failure, repair the valve body, remove the valve body, test it on the oil circuit test bench, find the worn plunger according to the test report, use imported American equipment to repair the valve body, replace and upgrade the plunger, and recalibrate the pressure to resolve the issue. The process takes approximately 5 to 8 hours. The Buick GL8 is a classic top-tier MPV under the Buick brand, equipped with a 3.0L VVT V6 engine, with a maximum horsepower of 178 and a top speed of 168 km/h.
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