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F650/F750 Fuel Senders

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If you encounter a truck with the fuel gage or tank transfer problems that require a replacement sender, be advised that the part has been revised.

 

The sender now looks like a long metal tube with no swing arm attached. The old part number 4C4Z-9275-CA supersedes to 4C4Z-9275-CB for the standard 50 gal frame mounted tanks.

 

And now you WILL have to remove the tank so service the part. /forums/images/%%GRAEMLIN_URL%%/mad.gif

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  • 5 months later...

is it common for them to have fuel sender issues with minimal miles? my tow companies rollback has 5k on the clock, and 05 model, and the fuel gauge is all over the place, most of the time its dead. wiring looked and tested good, i assumed it was the sender after testing it and getting wacky readings.

 

i reckon since the part number was updated it is better? thanks for the PN, i will use that to check and make sure.

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Being that these trucks are built by IH, they are probably IH senders, which have been a problem for the last several years. Does Ford warranty electrical on a MD more than a year? I'd bet you could buy it cheaper at IH if you walked it in there....

 

Good Luck!

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I can say for certain that the new senders have the IH part number on the bag... inside the Ford box. If I am not mistaken, the Ford warranty for Medium duty trucks is 24 months/unlimited mileage. Of course the engines and transmissions all have their own warranty periods depending on what option the customer has chosen.

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the only main problem is that the only dealer that will work on the MD trucks is in greensboro, almost two hours away. we were talking about it over frothy beverages the other day, and figured it was something we could do easily in the shop on a sat evening, instead of the truck being down for a few days in greensboro.

 

it has already been back to there once, they had it a week and a half to fix a trans leak and attempt to fix the fuel gauge issue, they didnt do anything we could tell. the tank hadnt been touched, cause he had fairings around it and they were not removed, the dirt was still around all the bolts.

 

its cheaper to fix it and pay for it than deal with that sterling dealer....

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Joey, I'm sorry to hear that your having these issues. Not all of the dealers are like this. Maybe you could call the customer service help line and be directed to another dealer or perhaps get one of the managers at the dealer involved with your problems. Keep in mind that Ford and IH are always changing the way they do things and definitely make it harder for us guys at the dealers.

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  • 1 year later...

Update, The senders are actually Stewart Warner pieces and can be purchased a lot cheaper than thru the Blue Diamond or Ford network. They went away from the pivot style to a vertical style sender about 1 1/2 years ago for replacement. It was found that the fuel sloshing in the tank was causing a bad connection on the sender. This new sender has relieved these types of problems. It may be a good idea to take a look at the external wiring for chafes, it is exposed and has had problems there also. Some companys use power washers(upwards of 3000 psi) on the trucks and cause shorts in the wiring.

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