Preston ended a run of four straight defeats to get their play-off bid back on track with a resounding victory at the Ricoh Arena. The visitors got off to a flyer when Chris Sedgwick scored his first of the season in the eighth minute
Sedgwick then help set up David Nugent for his 17th of the campaign.
Three minutes after the restart Brett Ormerod widened the gap further before he added his second on 56 minutes as North End cruised home.
Coventry boss Iain Dowie:
"It sounds ridiculous but I thought we played very well in the first half. "There were two moments of madness but I felt we dominated. The game was centred around the two boxes and they were better than us in both boxes.
"We made a tactical change and did well for three minutes but then the two goals in the second half were the easiest that will ever be scored and the fourth one was a joke.
Preston boss Paul Simpson:
"It's as well as we've played for a long time but I think it's a reward for the way they have stuck together this week. "We haven't got too distracted with everybody being negative and writing us
off.
"We kept our heads and it was a fantastic performance. We had a great
attitude to working, we mixed it up and got our rewards."
Coventry: Marshall, Virgo, Page, Ward, Hall, Osbourne, Cameron, Hughes, Tabb (McKenzie 46), Kyle, Mifsud (Adebola 46), McKenzie (Fadiga 69).
Subs Not Used: Steele, Turner.
Booked: Hughes, Osbourne, McKenzie, Kyle.
Preston: Henderson, Alexander, St. Ledger, Chilvers (Wilson 46), Hill, Sedgwick, Soley (Whaley 79), Davidson, Pugh, Nugent (Agyemang 60), Ormerod.
Subs Not Used: Lonergan, Ricketts.
Booked: Davidson, Sedgwick, Pugh.
Goals: Sedgwick 8, Nugent 17, Ormerod 49, 56.
Att: 21,117
Ref: P Walton (Northamptonshire).