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Cat 3126E acceleration power loss after changing water/fuel separator

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Phaeton04

RVF Regular
Joined
Aug 16, 2022
Messages
16
I installed the new filter and made sure the old gasket on the thread end was removed and new gasket installed. Filled up the new filter with fuel making sure to plug the center hole. installed the new fuel filter and started it up and text drove it.
It now has Very low power when accelerating and also shakes when you try to accelerate.
I also installed a new air filter.

What could be wrong, It ran great up until I changed the fuel filter. This is on a Cat 3126E (HEP20882) with only (1) fuel/water separator.
I have installed 3 new filters with the same results. using the following filters Cat 1752949, Baldwin BF1268 and now Wix 33783 w/bowl.
Freightliner said the original filter was Racor 3203 (Alliance ABPN12232FRT03)
Totally confused. What do I need to try now.
 

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