CJ Lopez |
01-09-2019 03:02 PM |
I have decided to track and post my progress with this current issue in case it can be a help to someone in the future. This week, we pulled out all the stops and looked at every little possibility. We started by replacing the MAP sensor, which did slightly improve the rough idle condition, but did not solve it all together by any means. Next we replaced the fuel filter after realizing how old it was. After checking the inside, we were glad we did. Again, no improvement to the rough idle. Next we went to the cap, rotor, spark plugs and wires. Upon replacing these, we found that the clip in the #6 spark plug wire was disconnected from the rest of the wire and was latched on the spark plug. We also found the #3 spark plug to be loose and not all the way fastened. At first we celebrated in victory as the Jeep seemed to be handling near perfect with new plugs, wires, etc. But this morning on my way to work, the Jeep started dropping RPMS again, not only when stopped in gear but also when driving and under load. Still no check engine lights or codes of any kind besides a bad coolant sensor which we have known about since buying the Jeep. We believe it to be the fuel pump, and are guessing that it has been the primary cause of this issue from the beginning, though lots of what we have done was much needed. Hopefully the fuel pump is the last of it, and I will have a freshly tuned up Jeep by the end of this week! Again, any comments, questions, advice, etc. are greatly appreciated,
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