Go Bottom4300 Fuel Problem
 | amotta
Join Date: Jul 2011 Posts: 3 Greenwood MO 
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2011-07-25 179545
I have a 4300 with 500 hrs that has had ongoing problems with stuck injectors since new. I have added injector cleaner about every other tank of fuel which has helped. If I forget to add the cleaner, one of the injectors sticks and it has limited power and smokes quite a bit. Load the fuel with cleaner and let if run for a few minutes and everything is back to normal. It is having the problem again but the cleaner does not seem to be working. Anyone else ever had this problem?
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Add Photo4300 Fuel Problem
 | kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina 
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2011-07-27 179560
Have no idea on your questions on the injector having a problem but lets talk about your fuel. Are you using a single source for it or tried different sores? Are you using the same brand? How often are you running a tank of fuel? Just trying to be sure there is no issue with the fuel itself.
Of course you could have a bad injector. ....
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| amotta
Join Date: Jul 2011 Posts: 3 Greenwood MO
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2011-07-27 179567
I try and use our local QuickTrip but have tried other brands. I use the same fuel in a Detroit 671 without this problem. I previously owned a JD 670 and 770, neither of which had this problem. I did go out this morning with a new fuel filter and filled the filter with injector cleaner and ran it until the injector freed up. I don't know which injector sticks but it always seems to be just one injector. ....
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Add Photo4300 Fuel Problem
| kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2011-07-27 179568
Well that would seem to support inject issue. I do not know how to test which injector. If you have an infrared thermometer you probably would find temp difference on that cylinder. ....
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