ka1: Check Validity of KOER 34
| Steps | _Remove the vacuum delay valve installed in the EGR system during the recall.
_Rerun the Key On Engine Running Self-Test and record all codes generated |
| Result | Was KOER 34 output again? |
| Direction | YES
The initial KOER 34 was a valid trouble code. Reinstall the vacuum delay valve. GO to Continue NO The initial KOER 34 was due to the authorized modification. Service is complete. Reinstall the vacuum delay valve. |
| Notes | The Turbocharged Thunderbird and Cougar have been involved in a recall campaign that added a vacuum delay valve in the EGR valve vacuum line. The valve may cause a KOER 34 to be output during self-test. This test step determines if KOER 34 is due to the authorized modification. |