644k john deere

jeradcdn · May 15, 2019

Unit idles rough, seems it may be missing/sputtering at about 1600 rpm
changed filters and no leaks that i can see. possible injector failing?
thanks

heymccall · May 15, 2019

Injectors would give fault codes. Are you sure you're not sucking air before lift pump?
Same symptoms before and after filter swap?

thepumpguysc · May 15, 2019

I would start by putting a clear line on the pump inlet.. {check for air/bubbles}
Its probably a bad lift pump.?? or a collapsed line.??

thepumpguysc · May 15, 2019

Hey McCall.. u know where Talbet Hall is.??

heymccall · May 15, 2019

What is this, a quiz?

heymccall · May 15, 2019

Back to topic. It is very common for others (not me) to lose the oring between the water bowl and the fuel separator filter. The symptoms are the same.

DB2 · May 16, 2019

That damned o ring cost me plenty of sleep

mg2361 · May 16, 2019

We see that o-ring missing on many occasions causing running issues. It likes to stick to the old filter and many guys don't see it when they switch the bowl over to the next filter. Serial number would be a big help, especially the letter just before the last six digits. Any codes?

heymccall · May 16, 2019

mg2361 said:
Serial number would be a big help, especially the letter just before the last six digits.

Learned that on my 544K. If I don't include the "E" before the last 6 digits of my serial number, I get the wrong filters, because...the engine package changed in the middle of K series production

644k john deere

jeradcdn

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heymccall

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thepumpguysc

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thepumpguysc

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heymccall

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heymccall

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DB2

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mg2361

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heymccall

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