fuel lines 97 blazer

backanforth10to2
Posts: 3
Joined: Fri Dec 02, 2016 6:12 pm

fuel lines 97 blazer

Unread post by backanforth10to2 » Wed Dec 07, 2016 1:33 pm

had fuel pump replaced by the dealer a couple years ago which has been fine since. a few months ago motor went out and replace with identical one from a 98 pickup. since then the fuel lines are making this irritating howl/squeal noise at pretty much the same volume from the tank to the intake using stethoscope type probe. any help would be appreciated. thanks

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carriedi
Posts: 2448
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: fuel lines 97 blazer

Unread post by carriedi » Thu Dec 08, 2016 10:19 pm

do you still have the old motor? Try switching the fuel pressure regulator and see what that does.
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