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Old 03-23-2014, 09:36 AM   #38
JNJchev77
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Join Date: Mar 2010
Location: Mesa, AZ
Posts: 918
Re: 4l60e 1-2 shift does not happen at WOT

I pulled the "post pump filter" and found that the screen was completely clogged. Also when I checked the old pump found that there was a lot of small foam pieces and even some of the braided steel line in the pump. Guess I didn't get it cleaned out enough before initial install and I didn't have a pre-filter prior to this...

Put new screen filter in and fuel pressure is right at 58 psi ... Oh and the amp pull is right at 7 amps... It always helps to have it on the right setting, Gotta learn somehow I guess... Anyway, taking it for a test drive today to make sure my fuel issue is solved then I can get back to the shifting issue

Thanks for everyone's help up until this point, I really appreciate it!!

J
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77' Chevy SB
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5.3/4l60e combo
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