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I had a heater hose go out which caused my Durango to overheat. I stopped it immediately, repaired the problem and went on my way. I noticed shortly after that there was a couple times I accelerated and it tried to stall out, but then kicked in after about a second or so and continued on as normal. When I got a couple blocks from my home, I tested the acceleration again, but this time when I hit the gas I heard a loud "pop" sound, like a loud backfire, the engine started to idle very rough, I had no power, but was able to coast to my house. I tested it with a OBD II scanner and it gave me codes P0300, P0302, and P0308. I know these are misfire codes for General, cylinder 2 and 8. I replaced the Crankshaft Position Sensor, reset the PCM(I think) but still no luck. I tried re-reading the vehicle with my scanner again, but it keeps saying PASS No Error Codes. I also read the vehicle with the manual way and all it tells me is Pdone. No Errors. I am at a loss of what could be causing this. Help Please!
