buzzing alternator,is this a problem ??
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 42
Likes: 0
buzzing alternator,is this a problem ??
hi all,
iv noticed yesterday that my fairly new motorcity reman brand # cs130 105 amp 1991 alternator has started making a buzzing sound.
when igntion on or off.
what could this be please ??
does this mean that it is stuffed??
what can i do to fix it ??
can i buy a alternator rebuild kit from some where may be that i can fix myself ??
this is the second darn alternator that i have brought from them now.
im getting tired of this!!!!
hope to get some help.
thanks
iv noticed yesterday that my fairly new motorcity reman brand # cs130 105 amp 1991 alternator has started making a buzzing sound.
when igntion on or off.
what could this be please ??
does this mean that it is stuffed??
what can i do to fix it ??
can i buy a alternator rebuild kit from some where may be that i can fix myself ??
this is the second darn alternator that i have brought from them now.
im getting tired of this!!!!
hope to get some help.
thanks
Last edited by 91-z07; May 5, 2008 at 06:54 AM.
Racer
Joined: Jul 2007
Posts: 313
Likes: 0
From: Laurel MS
Your noise problem
hi all,
iv noticed yesterday that my fairly new motorcity reman brand # cs130 105 amp 1991 alternator has started making a buzzing sound.
when igntion on or off.
what could this be please ??
does this mean that it is stuffed??
what can i do to fix it ??
can i buy a alternator rebuild kit from some where may be that i can fix myself ??
this is the second darn alternator that i have brought from them now.
im getting tired of this!!!!
hope to get some help.
thanks
iv noticed yesterday that my fairly new motorcity reman brand # cs130 105 amp 1991 alternator has started making a buzzing sound.
when igntion on or off.
what could this be please ??
does this mean that it is stuffed??
what can i do to fix it ??
can i buy a alternator rebuild kit from some where may be that i can fix myself ??
this is the second darn alternator that i have brought from them now.
im getting tired of this!!!!
hope to get some help.
thanks
1. loose drive pulley
2. loose mounting bolts/screws
3. worn or dirty bearings
4. faulty diode or faulty stator
Me? I'd replace the badboy! Might be able to return bad one under warranty??
Last edited by jim_hewett; May 5, 2008 at 11:31 AM.
Le Mans Master
Joined: May 2007
Posts: 8,448
Likes: 27
From: Valparaiso
I would replace it
Mine started with a real bad noise
and one day ...it froze !
The bearings were destroyed inside
and i couldn't start the car ! it was stuck !
watch out !
take it off and inspect it,if you say a buzzing sound with the ignition off...might be a electric issue,something not good waiting to happen
service it asap !
Mine started with a real bad noise
and one day ...it froze !
The bearings were destroyed inside
and i couldn't start the car ! it was stuck !
watch out !
take it off and inspect it,if you say a buzzing sound with the ignition off...might be a electric issue,something not good waiting to happen
service it asap !
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Buzzing noise when it is off indicates the field is still being supplied current from the battery. Not good, but not the alternators fault because the alternator gets field current via the ignition switch. You might have a defective ignition switch.
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 42
Likes: 0
hi there jfb ,
thanks for your continued replies guys.
i did for get to mention that i am running my power supply for my csr brand elecetric water pump of the alternator bolt/nut fitting!!
now at the moment i have removed my elecetric water pump now tha thave i modified it all for my new 388 race motor so all the wiring is there connected but no water pump motor plugged into any thing.
would this have any thing to do with the alternator buzzing may be ??
i have never hear this buzzing noise before though!!
could it be a diode inside alternator may be thats gone ??
can you buy alternator rebuild kits ??
may be the relay is supplying power there though ??
also i have problem wity my daylight running lights glowing very dim while power/igntion is off also!!
thanks
thanks for your continued replies guys.
i did for get to mention that i am running my power supply for my csr brand elecetric water pump of the alternator bolt/nut fitting!!
now at the moment i have removed my elecetric water pump now tha thave i modified it all for my new 388 race motor so all the wiring is there connected but no water pump motor plugged into any thing.
would this have any thing to do with the alternator buzzing may be ??
i have never hear this buzzing noise before though!!
could it be a diode inside alternator may be thats gone ??
can you buy alternator rebuild kits ??
may be the relay is supplying power there though ??
also i have problem wity my daylight running lights glowing very dim while power/igntion is off also!!
thanks
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Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
All the way diodes can fail will not produce a buzzing noise in the alternator. The ignition switch is suspect because of the additional symptom of your running lights staying on dimly. My money is on a defective ignition switch.
I haven't seen anyone offering alternator rebuild kits, but I am sure someone sells alternator repair parts and maybe rebuild kits for do-it-yourselfers. Check local auto electrical repair shops.
I haven't seen anyone offering alternator rebuild kits, but I am sure someone sells alternator repair parts and maybe rebuild kits for do-it-yourselfers. Check local auto electrical repair shops.
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 42
Likes: 0
hi jfb,
thanks for your info and help.
what can make a ignition switch to stuff up ??
when you mention igntion switch,do you mean where you fit the key in ??
if so,i will have to pull steering column apart ??
also while im at it i need to replace the turning signal switch/stork as it is broken and is missing a pin also and i think the wires inside might be touching also!!
thanks
thanks for your info and help.
what can make a ignition switch to stuff up ??
when you mention igntion switch,do you mean where you fit the key in ??
if so,i will have to pull steering column apart ??
also while im at it i need to replace the turning signal switch/stork as it is broken and is missing a pin also and i think the wires inside might be touching also!!
thanks
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
The ignition lock on the column is not where the ign sw is, a rod from the ignition lock actuates the ignition switch just behind the dash in C4's. I'd examine the rod action, then the ignition switch itself.
