 
				
	| 2007 Chevrolet Suburban 1500 LT 5.3L Oil Gauge code po521 oil pressure performance,check oil looks good so put in new oil pressure switch and software needed flash for some other calibration so we flashed it but same problem. When cold oil pressure goes up to 40psi and after driving for about 8 minutes pre... 
                        
                            FIX posted 6/11/2010
                               
                    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 8 Replies Received (View Replies)8 Replies Received (Hide Replies)
 | Message Closed w/FIX 
 | 
| VIN | 3GNFK16337 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Oil Gauge | 
| Misc. | New Oil Pressure Switch and Flash ECM | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                2007 Chevrolet Suburban 1500 LT
| VIN | 3GNFK16337 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Oil Gauge | 
| Misc. | New Oil Pressure Switch and Flash ECM | 
 8 Replies Received
8 Replies Received
 8 Replies Received
          8 Replies Received
           Related Documents & Media
  Related Documents & Media   Video
Video