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1991 Chev/GMC Truck 3500 7.4L Engine
Installed a rebuilt 454 about 2 months ago, 3000 mi or so. One of the spark plugs I pulled was caked up with a white crusty substance. Engine rebuilder cannot find any problems, as I am not much into engine repair, any idea on why the plug is getting so mu...
FIX posted 4/19/1999
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Message Closed
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| VIN | [No VIN Available] |
| Engine | 7.4 L / 8 cyl |
| Affected | Engine |
| Misc. | 1 Ton Cc Dually |
Message Closed
Vehicle Data
1991 Chev/GMC Truck 3500
| VIN | [No VIN Available] |
| Engine | 7.4 L / 8 cyl |
| Affected | Engine |
| Misc. | 1 Ton Cc Dually |