 
				
	| 2001 Cadillac Seville SLS 4.6L Piston Knock/Carbon Car seems to have the typical carbon/piston knock when engine gets warm. Archives tell there are newly designed pistons, and that it can be carbon build up on the upper rings. Iam not a fan of the top end cleaner. I have concerns of it damaging the cat and O2'... 
                        
                            Summary posted 9/7/2010
                               
                    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 14 Replies Received (View Replies)14 Replies Received (Hide Replies)
 | Message Closed w/Summary 
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| VIN | 1G6KS54Y11 | 
| Engine | 4.6 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Piston Knock/Carbon | 
| Conditions | Piston Knock/Carbon | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                2001 Cadillac Seville SLS
| VIN | 1G6KS54Y11 | 
| Engine | 4.6 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Piston Knock/Carbon | 
| Conditions | Piston Knock/Carbon | 
 14 Replies Received
14 Replies Received
 14 Replies Received
          14 Replies Received
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