After surrendering a well-earned lead and hitting the woodwork twice, they finished the game against fellow relegation contenders Cardiff with ten men after defender Nikos Dabizas was shown a red card after a second bookable offence.
The result now means that Leicester have set a new club record of 20 draws in a season.
Cardiff keeper Neil Alexander had kept his side in the game early on when he first clawed away David Connolly's 18-yard drive from under the bar and then blocked Stephen Hughes's close-range shot with his feet.
But Leicester's persistence was rewarded on 33 minutes when an angled drive by Darren Kenton was diverted by a defender into the path of Connolly who side-footed home from six yards.
Four minutes before the break Connolly missed a chance to put his side 2-0 up when he crashed a five-yard shot against a post. It was a costly miss for on 58 minutes Cardiff were level.
Dabizas conceded a free-kick on the edge of the 'D' and Neal Ardley stepped up to guide the ball over the defensive wall and into the top left-hand corner of Ian Walker's net.
The home side almost restored their lead on 73 minutes when Dion Dublin rattled the bar with a header direct from a Walker clearance.
But with ten minutes to go Leicester were reduced to ten men when Dabizas was shown a second yellow card.
Depleted Leicester continued to press but it was Cardiff who almost snatched it with five minutes to go when James Collins shot narrowly wide.