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Test 6: Diagnostics By Symptoms Test

NOTE: Use these test procedures only if the drive complaint is high RPM at idle, low RPM at idle or erratic engine speeds.

If abnormal high or low RPM at idle, check vacuum hoes routing, see VACUUM DIAGRAMS article. Also check idle speed setting. See appropriate article in the TUNE-UP section. Minor idle fluctuations are normal due to load changes. See appropriate article in the TUNE-UP section.

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