 
				
	| 2003 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on The truck came in with a code for slow responce on both up streem sensors. Ran a fuel system cleaning on the truck. About a week later the engine light came back on for a slow responce during cat moniter so we replaced B1S1 o2 sensor. now the code p0135 keeps ... 
                        
                            FIX posted 1/30/2012
                               
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 | Message Closed w/FIX 
 | 
| VIN | 1J4GW48S13 | 
| Engine | 4.0 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / port | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                2003 Jeep Grand Cherokee Laredo
| VIN | 1J4GW48S13 | 
| Engine | 4.0 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / port | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
 12 Replies Received
12 Replies Received
 12 Replies Received
          12 Replies Received
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