Light Vibration and Humming sound in cabin
no posts on this old post. but no year, so .... as an example
to others posting, NO year?, NO answers.
but... here you go.
NOISE MOVING, ONLY !: (dangerous tests)
NO noise , in neutral, guning throttle like mad man.
or doing same in drive, all brakes set, wheels chocked,
DO the FSM A/T trannny Stall test. 5seconds max !, at 0MPH this puts full load on most the parts, MAKE NOISE NOW?
cutting the engine , depends? in neutral? or coasting in gear.
risk 2, accidentally hitting park doing the test.
selecting neutral and cutting the key (danger if the steering locks ) do so only off road, and no people about, no turns., no cliffs, no trees, no rocks. (flat desert or parking lot, at early hours..etc.)
"and it goes off."<<< meaning the noise stops? key off?
the wheel bearing are under full load, now.
in turns the wheel bearing are under more load (huge in fact)
and the CVs run all the time.
but, if goes off means. no sound , it can be. (sure not wheel bearings)
1: exhaust parts, rattling. (running)
2: engine noise. (lots of possible) , but see test above.
3: A/T trans noise (its A/T right?) bad front, A/T pump? or TC?
or 150 other vastly complex A/T parts. bad.
when coasting , the CV do turn all the rear planetary gears ( and axle gears)
so they are not bad, as the quiet sound ending , proves.
keep in mind most parts, under torque love to make noise.
so cutting the engine, cuts most that torque, and hides the bad parts, with silence.
i use and remote electronic ear to find moving noise.
it has small microphones that clamp to suspected parts.
this removes most the danger in testing.
good luck finding it, if it still makes noise.
Aug 28, 2013 |
Honda Civic Cars & Trucks