P1299 Diagnostic Trouble Code Discussion for July 2009
Vacuum Leak Present With IAC Valve Fully Seated
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| Help Request | Posted | |
| 1997 Ford Expedition Eddie Bauer 4.6L MIL Lamp on, CHT over temp VIN: 1FMEU18W6V P1299: Over temp by pass. ... on every warm up cycle and on about the 3rd or 4th time the P1285 sets, it sets a P1299 and goes into “fail-safe" bypass which is designed to prevent engine damage due to overheating. I understand the strategy of the m... |
July 09, 2009 |
