One problem related to ignition has been reported for the 1998 Chevrolet Tahoe. The most recently reported issues are listed below.
Engine check light came on/ fuel spilled out of fuel injector. Took vehicle to dealer, who found fuel had spilled onto distributor cap and wires, shorting out distributor and causing corrosion. Also, in September 2000, brake pedal got hard progressivly. Took vehicle to dealer who found brake master cylinder was defective.