2004 Hyundai Elantra Owner's Manual - Page 204

6 DO-IT-YOURSELFMAINTENANCE 20 G170A01A-AAT G180A01A-AAT CHECKING DRIVE BELTS G190A01A-AAT Brake Pedal CHECKING BRAKE PEDAL CLEARANCE Water Pump Pulley 0.12 ~ 0.31 in. (3 ~ 8 mm) 0.2 ~ 0.24 in. (5.1 ~ 6 mm) Generator Pulley Crankshaft Pulley 1.78 in. (45.1 mm) HTB186 HXGS508 With the engine off, press down on the brake pedal several times to reduce the vacuum in the brake booster. Then, using your hand, press down slowly on the brake pedal until you feel a change in resistance. This is the brake pedal freeplay. The freeplay should be within the limits specified in the illustration. If it is not, have it inspected by your Hyundai dealer and adjusted or repaired if necessary. G180A01L You need a helper to check the brake pedal clearance. With the engine running, have your helper press down on the brake pedal several times and then hold it down with a force of about 110 lbs (50 kg, 490 N). The brake pedal clearance is the distance from the top surface of the brake pedal to the asphalt sheeting under the floor mat. If the brake pedal clearance is not within the limits specified in the illustration, have it inspected by your Hyundai dealer and adjusted or repaired if necessary. Drive belts should be checked periodically for proper tension and adjusted if necessary. At the same time, belts should be examined for cracks, wear, fraying or other evidence of deterioration and replaced if necessary. Belt routing should also be checked to be sure there is no interference between the belts and other parts of the engine. After a belt is replaced, the new belt should be adjusted again after two or three weeks to eliminate slack resulting from initial stretching after use.