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2018 Gmc Transmission Problems

The Dev Stjameswinery Writers

5 min read · Oct 12, 2024

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Web2018 gmc sierra 1500 transmission problems with 14 complaints from sierra 1500 owners.

The worst complaints are hard shifts, shuddering, and hesitation, surging.

Webnov 24, 2023 · no relationship with new dealer yet.

I noticed the tcc shudder a couple of months ago.

I did the transmission triple fluid flush and dropped the pan to change filter.

Webnov 3, 2023 · i have a 2018 gmc sierra with 6. 2 and the 8 speed 8l90 transmission.

Before 19,000 miles i got the shudder.

I did an online search to see if others.

Webdec 18, 2020 · the 2018 gmc sierra 6 speed transmission has had reported problems from consumers such as transmission cooler line leak, harsh shifting, and transmission stuck.

Webnov 27, 2018 · i have had my 2018 silverado lt crew cab z71 for about two months.

It has the 6 speed automatic transmission.

It hesitates, lags, wanders and is woefully.

Webdec 1, 2019 · the worst situation is low speed downshifting and the transmission seems to upshift momentarily and results in a pushing sensation and if we're not careful the truck.