P1299 Diagnostic Trouble Code Discussion for July 2015
Vacuum Leak Present With IAC Valve Fully Seated
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| Help Request | Posted | |
| 2002 Ford F-150 King Ranch 5.4L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTRW08L52 P1299: . just back from dealer with new pcm still goes in to limp in mode due to cylinder head temp gage will peg hot just turning key on then hard to start if at all. one time disconnect chtemp sensorgage drops to normal next time didn't change. so I guess my question... |
July 30, 2015 | |
| 2002 Ford F-150 King Ranch 5.4L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTRW08L52 P1299: . just back from dealer with new pcm still goes in to limp in mode due to cylinder head temp gage will peg hot just turning key on then hard to start if at all. one time disconnect chtemp sensorgage drops to normal next time didn't change. so I guess my question... |
July 31, 2015 |
