grinding noise....:(

[Torquen]

hey, iv posted this befor but i never realy got a definate answer. i was wonder why this grinding noise occured while i drive. it happens only between 65-85km/h and only happens sometimes (often lots at a time and then not for a while). when this happens you also loose all acceleration, you have o remove your foot from the accelerator then put it back on to stop it. It had like this when i bought the car and the previous owner said a mechanic had told him it was a carbon build up (cant remeber what part of the car it was in). he said all that needed to be done is to get it cleened out and that it would cost about $200. apart from making a realy iritating noise i have also noticed that my fuel use is REALY BAD. im gettin bout 100km per tank less than should. i am wondering iv anyone could tell me if i have a carbon problem (and if so what does it cost to clean out) or if not any suggestions to what is wrong with my car.
sorry bout the essay length thread...
cheers, jesse.

[Dragz]

hey man i have no idea what it could be but i hope ya get it fixed as i know it can be quite depressing when it comes to car problems..im having some atm and im so pissed:b:

[hako]

Maybe a bit more info like where is the grinding noise coming from - front, rear.
The carbon bit may refer to the catalytic convertor being blocked with carbon or the IAC valve or something else on the intake side....but neither of these would cause a grinding noise but they could cause loss of power but not intermittent.
Don't worry about the length of your post - the more clues you put in the better someone can solve the problem.

[Torquen]

ahh, the noise is coming from the front of the car (engine)

[Simdog]

96vscommodore....i am having the same trouble with my car to. EXACTLY the same. does it only grind when you touch the acceleator slightly? cheers i am needing help with this problem as well

[Torquen]

yep sounds exactley the same! only when you accelerate slowly and maintain a speed does it do it, i even get it while using cruise control. if you hell boot it then its fine!!! i dont get it...
AGHHH HELP!!!

[hako]

Maybe you both need to run a fault code check...see the "how to's" section.

[Torquen]

yeh did and i got 12 (OK) then got 23(MAT sensor: High Voltage)

[VR_Drag_Racer_Newbie]

i knida got the same prob. at around 60, 80, and 100 i get a deep grinding noisefrom the front left but i rev it and goes away. i was told it mite be the hub bearings but u gotta replace the whole hub tho. i figure drive it till it breaks, then u kno wats wrong with it..lol

[sixshooter]

I'm betting its the water pump thats shat a bearing...take your serpentine belt off and see it there's any side to side movement of the water pump pully... that could be making the grinding noises if it was knackered.

[Don Sutton]

I'm betting its the water pump thats shat a bearing...take your serpentine belt off and see it there's any side to side movement of the water pump pully... that could be making the grinding noises if it was knackered.

Could also be a jockey pulley bearing or the tensioner bearing for the serpentine belt and if airconditioning fitted the bearing for the pulley in freewheel mode or if it occurs while the air cond is running the compressor bearing/s. Also check the alternator bearings. All of the above with the eception of the air cond compressor bearings can be checked by releasing the tension on the serpentine belt with a socket bar (if the belt is taken off note which was the engine side and put back the same way (use a texta and put an arrow on the belt). Take the opportunity to examine the belt in case it has stress cracks on the inner side which may make a noise as it rounds a pulley.

[ozyrob]

this isnt happening when your torque converter in your tranny locks up ? mine also does this and when you litely press the pedel its sort of sits between beeing locked up and not locked up and grinds , i done a filter and oil change in my tranny and it helped heaps , still does it a bit bu no where need as bad

hope that helps

[VR_Drag_Racer_Newbie]

it only happens at 100 with me now with economy on. try it

[Torquen]

ok everi one i have found the problem. it is the torque converter. got myn fixed now. you have 2 choices $1000 for just the broken peice replaced or $2200 for a recondition one with a warrenty. i chose the socond option. so if you fellas havnt foudn the problem take it to your mechs and sugest what i have said. hope this helps.

[burnz]

a shot ildeler bearing by the sounds of it
only occures at 1900rpm
the noise will not stop until idle,.. rev harder only makes the belt slip/squeal

[VR_Drag_Racer_Newbie]

a shot ildeler bearing by the sounds of it
only occures at 1900rpm
the noise will not stop until idle,.. rev harder only makes the belt slip/squeal

revvin mine makes it go away. ill live with it till it brakes. then ill get it fixed.

[hako]

revvin mine makes it go away. ill live with it till it brakes. then ill get it fixed.

Unfortunately when they break you lose engine cooling, electrics, air and power steering. If then you dont stop the car you will cook the motor in about 1 minute. Sometimes its a long way to walk home!

[Patrio7]

ok everi one i have found the problem. it is the torque converter. got myn fixed now. you have 2 choices $1000 for just the broken peice replaced or $2200 for a recondition one with a warrenty. i chose the socond option. so if you fellas havnt foudn the problem take it to your mechs and sugest what i have said. hope this helps.

>.< mines getting chronic for the vibrations [ which doesnt help, i drive around a lot of 80km/h zones, grind city till i click it back to 3rd ]

$2200 for a reco unit mother ouch, may as well see if a wrecker would let you gut one out but then you wouldnt get a warranty with it. teh pain.

[BadSeed]

mines doing the same at around 100km/h... real annoying. so if its the torque converter... I need to replace it.. *sigh*

[hako]

>.< mines getting chronic for the vibrations [ which doesnt help, i drive around a lot of 80km/h zones, grind city till i click it back to 3rd ]

$2200 for a reco unit mother ouch, may as well see if a wrecker would let you gut one out but then you wouldnt get a warranty with it. teh pain.

I'm no friend of wreckers but most will give a warranty especially if they instal it - though to be safe take you grandfather with you to witness the warranty statement (it goes better at the small claims tribunal ----- just joking).

[cappatown23]

My commodore as same noise for 6 months comes and go's .
I beleive it is a problem with hub or bearings, lost of people are say motor ect,
but my car being a manual and put clutch in and the noise continues...
I have tried slamming on the breaks sharp turning and other things just to see if it has any effect on the noise. But nothing it just starts and stops when it pleases..
I have done easy 15-20,000 kms with out anything breaking so I would not lose any sleep over it.
Good luck
JH

[_tilt]

$2200 are you serious? you can pick up a MINT trans and converted for $300 and install it yourself.
Mines also doing it at around 80kays, its obviously a common problem.

[northqueenslandvs97]

yeh i have a 97 VS and its doing the same thing around 80 ks. has to be a common problem. i just accelerate till it goes away only lasts a bout one second. if thats the problem it shoudlnt do any damage. i just live with it. sweet asss