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| 3.7L running rough and making odd noises from engine http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=70789 |
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| Author: | stealthynips [ Mon Sep 10, 2012 7:57 pm ] |
| Post subject: | 3.7L running rough and making odd noises from engine |
my 3,7L in my 2002 KJ seems like its running rough. its gutless going uphill. the way the motors seems is its not firing on all cylenders. but the main problem is the noise its making. its almost like a taping sound like a valve is sticking possibly. also as i put on the throatle there is a popping sound almost like a small backfire and the the more i accelerate the more popping it does. my belts good. oil is perfect level and pressure is goo. i think maybe bad fuel or need a fuel filter change or check to see the plugs are firing, maybe bad coil/s. thanks for reading, hoping someone has some ideas for me. |
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| Author: | Hood297 [ Mon Sep 10, 2012 8:23 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
Do you have any trouble codes/check engine light? |
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| Author: | stealthynips [ Mon Sep 10, 2012 8:27 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
here is a link to a video i made of my jeep running and the sounds it makes. listen closely to the popping. http://www.youtube.com/watch?v=LkelChkwjWo&feature=youtu.be |
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| Author: | stealthynips [ Mon Sep 10, 2012 8:28 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
yes have check engine light on, getting codes soon. |
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| Author: | Hood297 [ Mon Sep 10, 2012 8:46 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
Video sounds very rough. Depending on the mileage on the engine you may be looking at a valve job. Trouble codes will help isolate it though, hopefully its just a misfire, but i would avoid driving it if you can. |
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| Author: | stealthynips [ Mon Sep 10, 2012 9:26 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
i got engine codes PO205, which is injector cirvut malfunction on cylinder 5 po301 which is missfire on cylinder 1 and po306 which is misfire on cylinder 6 so maybe timing of valve or fuel injector but if u think its timing woulding i be getting misfire on all the cylinders on one side of the motor instead of one on the left and one on the right firing order is 165432 6 5 4 3 2 1 anyone have this problem befor? |
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| Author: | stealthynips [ Mon Sep 10, 2012 9:26 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
it has roughly 176000 KM |
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| Author: | stealthynips [ Wed Sep 12, 2012 1:14 am ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
found out what the problem was. i rocker had fell off. not sure how it happened or why but it did and i got fix it. i think i need to run some engine cleaner through the oil and through the fuel then do a oil change. there's possible gunk built up in the valve that made is stick and rocker fall off. hmmm   
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| Author: | Boomerang [ Fri Sep 14, 2012 4:38 pm ] |
| Post subject: | Re: 3.7L running rough and making odd noises from engine |
Nice job |
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