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1986 GMC C3500 7.4L Mechanical
First heard this noise when engine was very warm and sounded like a lifter. I thought about the fuel pump but the pump rod is quiet. Started engine cold this AM and the noise is NOt lifters, but seems to be in the valve train. A very pronounced knock that can ...
FIX posted 7/29/2001
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Message Closed w/FIX
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| VIN | 14G1HC33W6 |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | CARB |
Message Closed w/FIX
Vehicle Data
1986 GMC C3500
| VIN | 14G1HC33W6 |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | CARB |
13 Replies Received
13 Replies Received
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