Home ReviewsRefund
Home/Dodge/Caravan/Dodge Caravan III (1995-2000)/Repair manual/Testing & Diagnostics/Engine Controls - System/component Tests - 3.8L: Overview
Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Controls - System/component Tests - 3.8L: Overview Dodge Caravan III

Testing & Diagnostics ~194 words

EGR System Operation

  1. Inspect all vacuum hoses to throttle body, EGR valve and EGR solenoid. Repair vacuum hoses if leaking or restricted. EGR solenoid is located on top of EGR backpressure transducer. (Схема №6)
  2. Ensure hoses are properly routed between EGR valve, EGR solenoid and EGR backpressure transducer. (Схема №6) Ensure electrical connector is firmly installed on EGR solenoid.
  3. Connect scan tool to Data Link Connector (DLC) located below driver's side of instrument panel. For additional information on locating DLC and scan tool usage, see «BASIC TESTING - 3.8L»(ref-24915) article. Since many computer-controlled and monitored components set a diagnostic trouble code if they malfunction, also perform procedures in «TESTS W/CODES - 3.8L»(ref-24790) article.
  4. Using scan tool, check EGR system by performing specified NO TROUBLE CODE (NTC) test. See TEST NTC-13A CHECKING EGR SYSTEM in appropriate «BASIC TESTING - 3.8L»(ref-24915) article. Since many computer-controlled and monitored components set a diagnostic trouble code if they malfunction, also perform procedures in «TESTS W/CODES - 3.8L»(ref-24790) article.
  5. After checking EGR system with scan tool, proceed to EGR valve gas flow test, EGR valve leakage test and EGR backpressure transducer test.

More articles — Engine Controls - System/component Tests - 3.8L