LEMON Manuals: Even more car manuals for everyone
Home >> Plymouth >> 1986 >> Turismo Base, 1.6 A >> Repair and Diagnosis >> Engine Performance >> System >> Carburetor CEC Tests W/Codes >> Testing >> Dr18 - Air Switching System Check

Dr18 - Air Switching System Check

  1. Remove air cleaner. Disconnect the downstream air hose from the switch/relief valve. Start engine. With engine coolant above 150°F (67°C), air should be coming from downstream air port of the switch/relief valve.
  2. If air is coming from the downstream air port, on 1.6L 4-cylinder models proceed to DR19  and on 2.2L 4-cylinder models, proceed to DR20  . If air is not coming from downstream air port, proceed to step 3).
  3. Disconnect vacuum hose from air switch/relief valve. Connect a vacuum gauge to hose. Vacuum gauge should read zero in. Hg vacuum. If vacuum is okay, replace air switch/relief valve. If there is vacuum, replace CVSCC valve.
scientia non olet · About LEMON Manuals