Welcome to the site! Take a minute to register and join us. It's FREE! (and fun)
The ORIGINAL Aztek Fan Club Welcome, Guest. Please login or register.
Did you miss your activation email?
Always stay logged in

Login with username, password and session length
Home Gallery Help Login Register
Pages: [1]   Go Down
Author Topic: AZTEK'S EAR-PIERCING NOISE FROM ENGINE  (Read 1517 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline

Posts: 5

« on: December 16, 2018, 04:59:47 PM »


I have recently completed a head gasket job on a 2001 Pontiac Aztek GT that I purchased almost a year ago. It's been running for a little over a month now but for the time that it has been running, there's been this awful high-pitched squeal that's been present. It is not belt or pulley related as I have removed the belt and it still does it. I'm starting to wonder if it is vacuum related, but I replaced the PCV valve tube, the EVAP purge tube and the Crankcase Vent Tube with no change in the situation. I'm hoping it's not a plenum leak being that the upper intake gaskets as well as the lower intake gaskets have also been replaced. Anyone ever have this situation? I have attached a video to the this post demonstrating the issue. Thank you!
100 Club Members
Offline Offline

Posts: 381

Car Nut!

« Reply #1 on: December 19, 2018, 01:31:49 PM »

With the engine running, spray carb clean/Starting Fluid around the intake. If you notice a change in the idle at any point, you have found a vacuum leak.

Brian - Carpe Diem

01 Pontiac Aztek GT OPT AWD 121k - 04 GMC Envoy XUV 182k - 05 Mercury Montego Premier AWD 52k (wrecked)

Pages: [1]   Go Up
Jump to:  

Powered by SMF 1.1.20 | SMF © 2013, Simple Machines
Theme Underground Yellow