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1997 Chevrolet Blazer 4.3L Misfire, Spark knock
We have this Blazer that is missing over 55 mph. The code is random misfire and #1 and 6 show a slight misfire but it is mostly #2. The car has new plug wires, #4 was bad. The vehicle pings nearly all the time under acceleration but only misses on the highway....
FIX posted 6/4/2009
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Message Closed w/FIX
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24 Replies Received
24 Replies Received
Related Documents & Media | VIN | 1GNDT13W4V |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Spark Knock |
| Occurs | Under Load, Cruise, Over 55 Mph |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1997 Chevrolet Blazer
| VIN | 1GNDT13W4V |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Spark Knock |
| Occurs | Under Load, Cruise, Over 55 Mph |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Video