Congestion had stretched back from the scene of the accident at junction 5 (A41, Eastham) as far as junction 4 near Bebington.
However, the accident, which was reported just after 6am, had cleared by around 11am.
Police are warning drivers to take extra care because of today’s icy conditions.
North West Motorway Police tweeted: “Slow down, keep your distance and drive to the conditions, lots of ice around this morning.”
And Cheshire Police said there had been a number of collisions on the A54 Kelsall by pass and surrounding areas.
A spokeswoman said: “The roads are still icy so please allow extra time for your journey. The icy conditions appear to be affecting many of the roads in Cheshire so please take extra care when driving this morning.”
In a tweet, the force said: “Please be careful on the roads this morning. Lots of calls being received about the slippy conditions.”
And there were also earlier reports of the roads being particularly icy near the Bickerton Poacher, Malpas.
Predictably, North Wales is among the areas worst hit by the wintry conditions.
Twitter account UK Snow Updates tweeted: “Scottish and Welsh mountains are all considered high risk at the moment (English mountains medium risk) primarily due to the colder temps.”