Engine and engine cooling: cooling system
Free remedy
VEHICLE DESCRIPTION: PICKUP TRUCKS EQUIPPED WITH 2.5L OHC ENGINES. ENGINE COOLANT CIRCULATION THROUGH THE HEATER CIRCUIT IS PREVENTED BECAUSE OF A PLUGGED HEATER RETURN TUBE (WATER PUMP INLET TUBE) AT THE WATER PUMP. THESE VEHICLES DO NOT COMPLY WITH THE INTENT OF FMVSS NO. 103, "WINDSHIELD DEFROSTING AND DEFOGGING SYSTEMS."