
1972 Chevrolet C20 Pickup 5.7L Excessive Emissions
The Problem is excessive HC at idle. Everything else is okay. There is no catalytic converter. We have set the carburetor idle jet screws to 2 turns out, from 3 turns out. The engine compartment is very clean and easy to work on also. The spark plug wires ...
FIX posted 7/19/2019
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Message Closed w/FIX
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VIN | CCE342Z157 |
Engine | 5.7 L / 8 cyl / GAS |
Delivery | Carburetion / 4 bbl, HEI distributor |
Symptoms | Excessive Emissions |
Occurs | Hot |
Message Closed w/FIX
Vehicle Data
1972 Chevrolet C20 Pickup
VIN | CCE342Z157 |
Engine | 5.7 L / 8 cyl / GAS |
Delivery | Carburetion / 4 bbl, HEI distributor |
Symptoms | Excessive Emissions |
Occurs | Hot |