Automakers heaped dire predictions on a group of visiting congressmen during an industry-sponsored tour designed to drum up support on Capitol Hill for the ailing automakers.

A House delegation wound up a visit Friday after hearing from Chrysler Corp. that the Big Three automakers would lose more than $4.5 billion before taxes in North America in the first three months of the year.Chrysler Chairman Lee Iacocca last month predicted the automakers will lose $3 billion worldwide after taxes in the first 1991 quarter.