I have a '96 Jeep Cherokee (XJ) with a 4.0 V6. It has over 200,000 km. I don't know if the injectors have ever been changed. The engine ran rough when idling and the exhaust smelled strongly (too much petrol). After some research, I narrowed the cause down to a fuel injector (or more than one) that was stuck open, meaning it was supplying gas to the engine when it wasn't supposed to. This causes rough idling and, above all, the smell of gas from the exhaust. It was very strong! We couldn't keep the windows closed because it smelled. Injectors changed and no more smell of gas! Now it runs smooth as silk.
Lucas Oil Fuel Treatment Quart - Tan Color, 1QT Size
31 Review
GOOFIT PD18 18Mm Carburetor For 4-Stroke GY6 49Cc 50Cc Chinese Scooter 139QMB Moped Replacement - Taotao Kymco Jonway Baja
19 Review
ALAVENTE Carburetor For Ford 240 250 300 YF C1YF 6 Cylinder CIL Engine 1975-1982 D5TZ9510AG, Carb For Carter YF Type, Replace # RSC-300A 6307S 6054 6055 6-736 6056 6057 6058 6059, Automatic Choke
26 Review
Hy-Per Fuel Complete Gas System Cleaner By Rislone
24 Review