IDLE, VOLTAGE, AND VAC LEAK I love my WJ
Ok I have a few problems and I am wondering if any of them are linked together.
The jeep is a 04 4.7 WJ w/ 130,000.
The first thing I noticed is recently when coming to a stop the idle will drop real low. Every once in a while it will stall, then as this is happening the voltage will drop, and finally about 3 weeks ago the check engine light came on with the P-0442 & P-0455.
I have found two possible leaks and have repaired them and turned off the check engine light. Then a few days later it comes back one. So brought to a shop to have it smoked and they were unable to find anything. They thought it might be a internal leak.
This is driving me nuts, Any input would very be helpful and appreciated.