P0442 Diagnostic Trouble Code Discussion for February 2009
EVAP System Small Leak Detected
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| Help Request | Posted | |
| 2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out VIN: 1J4GW48S33 P0442: EVAP System Medium Leak (0.040") Detected. Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a... |
February 19, 2009 | |
| 2001 Dodge Dakota Sport 4.7L Poor Idle Quality VIN: 1B7GG22N51 P0442: EVAP System Small Leak (0.040") Detected. I did a search on the inj and tps codes- found trouble with TPS, scoped and looked good. I did replace the tps with OEM. Found the vac hose at the evap test port cracked-replaced. The truck has a high idle and IAC at 0%. Spray choke cleaner at intake and STFT ... |
February 26, 2009 |
