P0404 Diagnostic Trouble Code Discussion for January 2004
EGR Position Sensor Performance
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| Help Request | Posted | |
| 1998 GMC C1500 Sierra SL 5.0L MIL Lamp on VIN: 1GTEC14MXW P0404: EGR Open Position Performance. ... a tune-up(cap,rotor,plugs & wires), everything went normal except for a tiny coolant leak at pass front corner of engine. Vehicle was re-booked for later in the week to check this out and customer left, check engine light was not on at this time. 2 day... |
January 30, 2004 |
