Engine diesels or continues to run.
Forum: C3 Engines, Driveline and Handling
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
If it is doing this with just a short time running, it has to be a large vacuum leak below the throttle, or the throttle blades are opened too much, possibly to mask a different problem, such as too much fuel.
Try starting it, and then lowering the idle as low as it will go, and still run. Then turn it off and see how it responds.
Make sure the secondary throttle blades are not open at idle, too. That could be an issue. The secondaries should be fully closed at idle.
Try starting it, and then lowering the idle as low as it will go, and still run. Then turn it off and see how it responds.
Make sure the secondary throttle blades are not open at idle, too. That could be an issue. The secondaries should be fully closed at idle.
Joel Adams
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