Engine Running
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
- Start the engine with the test vials in place. See Figure.
- Run the engine until the top mark on one of the large graduated vials is obtained.
- Turn engine off immediately.
- Evaluate the individual return quantities.
The maximum permissible difference between return quantities of the individual injectors, and the injector with the highest return quantity, is 3 graduation marks.
Injector Graduated Vial Mark Content 1 5 marks, large vial 42 ml 2 2 mark, large vial 21 ml 3 2 mark, large vial 21 ml 4 Surround, large vial 8 ml Evaluation
Injector #1 has excessive return quantity, replace the injector. Injectors #2, #3, #4 are OK.
- Perform the running test again after the repair to assure no other injectors are identified.
If the injectors pass the quantity test, continue with the diagnostic service information.