I have a 2000 Mazda Tribute that developed a hissing noise coming from the floorboard area of the vehicle. I first was told that it was likely the brake booster. A trip to the mechanic and was told if it was the break booster, the brakes would be noticeably different. The breaks work fine and have been throughout the hissing noise. I was told that a gromit may have a crack that could be making this noise. It's annoying, but I do not want to spend a lot of money on this if the brake booster is not the problem. Do you have any suggestions? The noise comes and goes based on when I'm putting on the brakes or not. This has been going on for about 2 months now and can now notice a difference in the noise level when I operate the gas peddal

Mazda Tribute Questions - CarGurus

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CarGurus2001 Mazda Tribute 3.0 Wont Start. out shopping one ... 0. Report. rebel54 asked a2005 Mazda Tribute i Maintenance & Repair question about a month ago ...

Tribute won't start - Mazda Forum - Mazda Enthusiast Forums

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May 22, 2007 - I have a 2002 Mazda Tribute V6. On Sunday it wouldn't start. ... 2005Tribute won't start! rizakag, Mazda Tribute, 4, 03-27-2006 09:29 AM ...
Why does my fuse in my 2005 mazda tribute keeps blowing ...www.cargurus.com > Questions > Mazda > TributeCarGurusSep 4, 2014 - Why does my fuse in my 2005 mazda tribute keeps blowing when I try to switch gears?Electrical problem - 2004 Mazda Tribute - RepairPalrepairpal.com > Questions > Mazda > Tribute > 2004 Mazda TributeApr 5, 2011 - Electrical problem on 2004 Mazda Tribute ... meter on the battery cable note the battery draw then remove fuses one at a ... 2005 Mazda Tribute.2005 Mazda Tribute, Fuse #3 Blows, No Tail Lightswww.sparkys-answers.com/.../2005-mazda-tribute-fuse-3-blows-no-tail.h...

Damaged PCM Wires May Cause Engine Misfires : Mazda ...

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Check Engine Light Due to Engine Misfire on Mazda Tribute. If the engine is misfiring, it may be caused by a damaged wire(s) which connect the fuel injectors to the Powertrain Control Module (PCM). ... With only 69000 miles and no other problems I hate to replace the vehicle ... 2003 Mazda Tribute- 3.0L V6150,285Visitor.
Fuses OK??

https://www.youtube.com/watch?v=ZLMi95jSARA

Hope this helps

Vacuum leak. Open the hood and try to locate where the hissing sound is coming from. Likely a rotted rubber vacuum hose somewhere.

replace vacuum hoses

sounds like oxygen sensor replace oxy sensor or dyi splice and connect back together

I had this same problem was fixed and was told a hose under my seat was broken or disconnected one of the two

If you have large tire tread then it is probably tire to road noise, this is nothing to worry about. The best way to tell is driving on different road surfaces. the noise will change as the road changes.

You need to have a scan done and pay close attention to the throttle position sensor and the idle air control .

Also (since we have so little information to work with) check your engine compartment while it is running and listen to see if you have a vacuum leak. See if you hear a hissing sound.

A vacuum leak will cause it to stall after it is warmed up. The computer will keep it running at a higher RPM until it warms up and with a vacuum leak it will stall when the idle comes down to the 600-700 level.

Hope this helps.

sounds like a wheel bearing maybe faulty from your text it sounds like it could be the osf you could try jacking vehicle up with engine off handbrake applied and in neutral spin the wheel and see if it makes noise or wiggle it to see if it has any play possibly take off greade cap and see if any grease in bearing /