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1997 Jeep Grand Cherokee Limited 5.2L Hesitation, Poor Fuel Economy, spar k knock
After i had all new exhaust installed, along with both new o2 sensors installed, the convertor code came back,along with spark knock on accel. So i did a full tune up. Plugs,wires,cap,rotor, [...] valve and fuel filter. I also check for vac leaks,fixed a coupl...
FIX posted 10/15/2008
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Related Documents & Media | VIN | 1J4GZ78Y7V |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Poor Fuel Economy, Spar K Knock |
| Occurs | Cold, Hot, on Accel, Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1997 Jeep Grand Cherokee Limited
| VIN | 1J4GZ78Y7V |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Poor Fuel Economy, Spar K Knock |
| Occurs | Cold, Hot, on Accel, Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video