EGR System Check
CAUTION:
DO NOT
attempt to adjust the link-rod or converter ball stud between pump output lever and vacuum converter lever. If link-rod setting is changed, it will be necessary to replace complete pump and vacuum converter assembly.
- An improperly functioning EGR system results in heavy exhaust smoke and poor engine performance.
- If symptoms are not found when engine is cold, warm up engine until fan engages. This is to locate the components which malfunction only when hot.
- To check system, disconnect the connector between ECB and engine speed sensor. Start engine and see if symptoms disappear. If they do, EGR system is at fault.
- Check the vacuum converter. See Vacuum Converter Vacuum Check. If symptoms are still present, perform the following tests.