Knocks Cold and Continues for 2 to 3 Minutes for Chevrolet Venture 1997
| • | Engine flywheel contacting the splash shield--reposition
the splash shield. |
| • | Loose or broken crankshaft balancer or drive belt pulleys--tighten
or replace the components as necessary. |
| • | Excessive piston to bore clearance--replace the piston. |
| • | Bent connecting rod--replace the connecting rod. |
| • | Cold engine knock usually disappears when the specific cylinder
secondary ignition circuit is grounded out. Cold engine piston knock which
disappears in 1.5 minutes should be considered acceptable. |
