Question about 1998 Jeep Cherokee
DescriJeep Cherokee 1998 sport 4.0 6cyl. 168,000 miles, when idle I can smell exhaust it has slight sputter and rough idle. In the past have had codes 700,740,171,133 as of now my engine light is off. 2 days ago I had tune up replaced pick up plugs and wires rotor and cap, oil change, air filter, throttle removed and fully cleaned. This caused my engine light to turn off. Car has been running smoothly until I smelled exhaust while in traffic moments before I noticed a slight sputter. Up until now I have replaced both 02 sensors, had my fuel injection cleaned by Tune Up Master all lines have been checked for leaks there are none PLEASE WHAT CAN IT BE? Thanks for your time. Yesterday I began to use 89 unleaded instead of 87 if that could be of any helpbe your 1998 Jeep Cherokee Problem
Check the exhaust manifold.It is prone to cracking at the expansion joints.Causing you to smell exhaust and confusing the upstream o2 sensor
Posted on Aug 02, 2009
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Posted on Jan 02, 2017
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