 
				
	| 2007 Chevrolet Suburban 1500 LS 5.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on Hey guys, So this one is interesting. First off, lots of lights going on in the dash.. Chk engine, Check stabilitrack, Check traction control, Tire pressure light. Performed basic testing for the cyl 1 misfire. Concluded that the intake valve for cyl 1 is not ... 
                        
                            FIX posted 10/24/2011
                               
                    iATN Members:  Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 6 Replies Received (View Replies)6 Replies Received (Hide Replies)
 | Message Closed w/FIX 
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| VIN | 1GNFK16377 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| C0561 | ABS Module RAM/ROM Circuit | 
| P0300 | Multiple Misfire Detected | 
| P0301 | Cylinder 1 Misfire Detected | 
| P0449 | PCM Internal Fault | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                2007 Chevrolet Suburban 1500 LS
| VIN | 1GNFK16377 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| C0561 | ABS Module RAM/ROM Circuit | 
| P0300 | Multiple Misfire Detected | 
| P0301 | Cylinder 1 Misfire Detected | 
| P0449 | PCM Internal Fault | 
 6 Replies Received
6 Replies Received
 6 Replies Received
          6 Replies Received
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