MY 1997 JEEP GRAND CHEROKEE LAREDO HAS HAD A CRACKED EXHAUST MANIFOLD FOR SOME TIME NOW. THE DEALERSHIP KNOWS THE PRICE FOR ONE OFF THE TOP OF THEIR HEAD WITHOUT LOOKING IT UP. DUST OR WATER CAN GET IN THERE AND CREATE ENGINE FAILURE, IT CAN ALSO CAUSE THE ENGINE TO GET TO HOT AND CAUSE A FIRE. CARBON MONOXIDE LEAKS INTO THE CABIN WHEN THE WINDOWS ARE UP AND THE HEATER IS ON. *JB