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Found 3 results

  1. Hi All, This is my first ever post on this forum or any forum for that matter. I have an 87 Comanche 4.0 pioneer that has a bad ticking noise. It has been doing this noise for the last 6 months I've owned the truck. I've run thicker weight oils, various additives and they did little to help. The noise is strange in that it is intermittent and only seems to get bad after the engine is fully warm. Did the rear main seal two months ago and didn't notice any metal debris in pan. It doesn't get noticably audible until oil pressure is under 40. Seems to be worse at idle(or just easier to hear) or when coming to a red light after driving at higher speeds. I have had two people listen to it and one believed it was most likely a bad lifter. The other seemed to think it was a possible exhaust issue. I believe that I do have some exhaust leak, but I don't think it could be the cause of metalic click noise. I am leaning toward it being the lifters, but I also know these engines can develop piston slap. Before I get into any fixes is there anything that can be done to help determine if the tick is a lifter, piston, or possible exhaust? What do you guys think it sounds like? I have attached a short clip of the engine ticking when fully warm. Thanks for any advice you may have. VID_20190522_091052028~3.mp4
  2. Please help me with this terrible noise...:/ 1992 comanche 4.0 5-speed, 80k miles....pretty much stock and taken care of... View My Video
  3. Hey guys, I have a 1990 Jeep Cherokee Sport, 4x4, 4.0, 5spd that has a light knock. Its crankcase breather thingie was rotten so I got a new one and installed it, and when I did I noticed that inside at that point, there was a serious buildup of sludge. Looked like someone took some rubber and oil and blended them together and poured it in. How might I get rid of this? Pour seafoam in that hole? In the oil? Will it actually get high enough to clean that out? And last, even if it does get up in there and cleans it out, I'm seriously worried about it doing more damage to the engine than it's worth. And last last, after all this should I switch to 15w40 diesel oil to help that knock?
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