|
|
on the following strokes, and does not reach normal. Compression does not improve Head gasket leaking Compression is low on the first stroke. The compression does not build up on the 15. If one or more cylinders fails to meet the minimum specified compression, repair or replace all damaged or worn components and test the engine again. CYLINDER LEAKAGE TEST Tools Required J 35667-A Cylinder Head Leakdown Tester. See Special Tools. Test With the use of air pressure, a cylinder leakage test will aid in the diagnosis. Use the cylinder 1. Disconnect the battery ground negative cable. 2. Remove the spark plugs. Refer to Spark Plug Replacement use for the 4.3L engine. 3. Rotate the crankshaft to place the piston in the cylinder being tested at top dead center (TDC) of the compression stroke, with both valves closed. 4. Install the J 35667-A . See Special Tools. 5. Apply shop air pressure to the J 35667-A and adjust according to the manufacturer instructions. See Special Tools. CAUTION: Refer to Battery Disconnect Caution . IMPORTANT: It may be necessary to hold the crankshaft balancer bolt to prevent piston movement.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
|