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2003 Hummer H2 6.0L Poor Idle Quality, Misfire, MIL Lamp on
thanks for reading. this h2 came in for intake gaskets, exhaust gaskets, plugs, and wires. we replaced all that and put heddmen headers on. took it for a test drive and the oil pressure shot up over 80. got back from the test drive and it had a real rough idle...
FIX posted 8/27/2016
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Related Documents & Media | VIN | 5GRGN23U93 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle, Starts and Idles Fine Until It Levels Out After 600 Counts on the Modis. |
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Vehicle Data
2003 Hummer H2
| VIN | 5GRGN23U93 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle, Starts and Idles Fine Until It Levels Out After 600 Counts on the Modis. |
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