Production has stopped at Vauxhall's Ellesmere Port site this week because of falling sales.
The company say the decision is normal working practice as they react to a decline in demand. They say all staff will still be paid.
The move is in stark contrast to neighbours Jaguar Landrover who have recently stepped up to 24- hour production.
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A lone man dressed in black was seen approaching the front door of a house on Victoria Street, Dukinfield, at 9.15am this morning.