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7A1–28 AUTOMATIC TRANSMISSION (4L30-E) Normal line pressure Check internal linkage: manual valve (326) Check for internal mechanical loose – Etc. Low line pressure Use CHART 15a: POSSIBLE CAUSES Check line pressure CHART 2: NO FORWARD GEARS IN ANY RANGE/NO REVERSE PERFORM PRELIMINARY INSPECTION FIRST! Refer to Line Pressure chart ( in this Section. ) ( ) Refer to Parts List at the end of this Section. |