Plenum kit didn't fix my problem!!
#1
Plenum kit didn't fix my problem!!
New guy here but I'm a long time reader. Here is the whole deal. I have had my 2002 5.9 1500 4wd for years with no problems. In 2009 I received orders overseas for 2 years, so my truck went in storage. I got back in the states in April and flew to Dallas to get my truck this is when my problems started. On my drive to AR.(Where I'm from) it drove good for the first half of the trip. It felt good to be reunited, but on my last leg running about 75ish and she started to buck. I just thought it was bad gas. At my parents house and began to troubleshoot. Bad gas was out of the question, I had ran through that initial tank. I didn't have much time to dick around with it because we had a 9 month old little girl that had never seen her grandparents. So I sea foamed it and still nothing. after that we headed to IL. to see my in laws and it was the same song second verse. Through all of this I was glued to this site trying to pinpoint my problem. Finally I had to report in TX. for training. After all the miles of crappy mpgs and trying not to blow my motor I actually have time to work on it. The first job I did was the Plenum Kit. I finished this afternoon and the bang thing still runs like crap and to add to the mess, the truck now idles at 1100 rpms or so. (900 with ac on) I don't think this is normal. So to sum it up. I have the symptoms of a blown plenum gasket, bad spark knock at hwy speeds, decelerates on inclines, bad mpgs and no power. I don't have smoke or oil consumption. The old gasket had no blowouts and looked good FML. oh if it matters my PCM has the update sticker on it. Anyone's help would be greatly appreciated! oh no codes eather.
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