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2007 Chevrolet Tahoe LTZ 5.3L Pinging, Spark Knock
Need some help from the G.M. dealer techs. This 2007 Tahoe pings (spark knock) badly on 87 octane fuel. 87 octane is the recommended fuel for this engine. Pinging (spark knock) worse when in 4 cylinder mode, but still noticable in 8 cylinder mode. Pinging goes...
Summary posted 5/27/2008
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Related Documents & Media | VIN | 1GNFK13037 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Pinging, Spark Knock |
| Occurs | Hot |
Message Closed w/Summary
Vehicle Data
2007 Chevrolet Tahoe LTZ
| VIN | 1GNFK13037 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Pinging, Spark Knock |
| Occurs | Hot |
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