P1690 Diagnostic Trouble Code Discussion for January 2007
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| Help Request | Posted | |
| 1999 Ford F-550 Super Duty XL 7.3L Poor Idle Quality P1690: Wastegate Control Valve Malfunction. This truck was brought to me after haveing been to several other shops. The origanal problem was lack of power once and a while. Sounded like electrical. They replaced turbo, injectors. Now it was towed in and there is no base oil pressure and fuel is getting ... |
January 24, 2007 |
