EXHAUST RESONANCE NOISE AROUND 2600 RPM (1.8L)

Applicable Models

0001431 Dealer Repair Information

In the "D" range, during light to medium acceleration from a stop, there
                                                                        
may be a resonance noise heard from under the vehicle.                  
                                                                        
The noise sounds similar to a loose pipe or heat shield, and is most    
noticeable after an upshift when the tachometer drops into the 2500-2700
                                                                        
RPM range. The noise may not be heard above 2800 RPM or if the engine is
                                                                        
revved at idle without a load.                                          
                                                                        
1. Raise the vehicle on a lift and inspect the entire exhaust system for
                                                                        
   loose heat shields and mounting hangers.                             
                                                                        
2. Check the "Front Pipe" heat insulator for looseness. Inspect the spot
                                                                        
   weld holding the heat insulator shield near the engine side (the     
   topside weld opposite the 02 sensor). If the spot welds are tight,   
the    insulator will feel solid when tapped, If loose, replace the     
front    pipe.                                                          
                                                                        
PARTS INFORMATION:                                                      
                                                                        
                   P/N              DESC.           QTY.                
               BP47-40-500A       Front Pipe         1