99 5.4 running bad
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New User
Joined: Dec 2009
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99 5.4 running bad
Hi all new here. Have not had the truck long it had several codes p0172,p0175.p1131,p1132and p1152. I replaced aftermarket intake tube with stock airbox and intake tube cleaned the maf sensor changed the plugs replaced some iffy vacuum hoses I reset the codes the truck threw another code a p0133 it is still missing on acceleration and at idle wondering if I should do o2 sensors next. It makes a whoosing sucking sound in the throttle body when you first hit the accelerator then goes away any ideas appreciated thanks
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Joined: Sep 2008
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Check the rubber boot on the back of the intake. They deteriorate over time. I had the same problem and it was throwing the P0133 code. Just follow the tube connected to the pcv valve around to the back of the intake and you will feel it.
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New User
Joined: Dec 2009
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udate
I replace o2 sensor precat on bank 1 and replaced the fuel filter now running worse it shakes like crazy on acceleration don't know what to check next maybe fuel pressure any ideas appreciated thanks
