Hyundai Tucson complete power loss and stalling issue when driving uphill, won't turn over on Hyundai Tucson

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Hyundai Tucson owners report experiencing complete power loss and stalling issues while driving uphill, often accompanied by the vehicle not turning over. These problems may stem from several factors, including off engine timing, which can lead to stalling and misfiring. Additionally, fuel system problems, such as a clogged fuel filter or faulty fuel pump, can restrict fuel flow and reduce power. Owners have also noted acceleration problems, including engine hesitation and sluggish performance, potentially caused by a faulty speed sensor. Furthermore, some report transmission issues, such as slipping gears and struggles to remain in gear, which may be due to worn-out clutch components or low transmission fluid levels. It is recommended that affected owners have their Hyundai Tucson inspected by a qualified mechanic to diagnose and resolve these issues promptly.

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