Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

Thread Tools
 
Search this Thread
 
Old Feb 9, 2010 | 05:46 AM
  #1  
91R5's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2009
Posts: 71
Likes: 0
From: Chesapeake
Car: 91 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

sometimes my car wont start but when I turn the key it sounds like the starter motor makes a buzzing sound. Like its spining but not catching anything. Then if I stop and try again it starts. Could this mean my starter is on the way out?
Reply
Old Feb 9, 2010 | 08:17 AM
  #2  
Wadebryant's Avatar
Supreme Member
 
Joined: Jul 2003
Posts: 1,236
Likes: 0
From: KY
Car: 87IROC, 740iBMW, 328iBMW, 86GMC
Engine: 5.7, 4.4LV8, 2.8, 6.0
Transmission: Manuals & Auto's
Axle/Gears: 3.27, 3.42
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

If it clicks, might be a low battery. If it buzzes or doesnt engauge, might be starter failure or worn ring gear. Assuming it can be started, the battery can be tested with it in the car. You'll have to pull the starter to get it tested. Once you've pulled the starter you can also inspect the ring gear for wear or damage.

Good luck
Reply
Old Feb 9, 2010 | 10:29 AM
  #3  
91R5's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2009
Posts: 71
Likes: 0
From: Chesapeake
Car: 91 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

. I just had the battery replaced the other day. It doesnt make any clicking sounds. Just sometimes when you go to start it it buzz's like its spinning but not catching. Is the starter the same on a v6 as a v8? I took one off of a v6 before it was only like two bolts and some conectors. its a wierd sound I never heard it before
Reply
Old Feb 9, 2010 | 09:28 PM
  #4  
305sbc's Avatar
Supreme Member
iTrader: (3)
 
Joined: Nov 2001
Posts: 2,428
Likes: 2
From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

The solenoid on the starter isn't working.
It's job is to push the starter gear into the teeth of the flywheel/flexplate.
It's possible to replace just the solenoid but most people replace the whole starter.
Before replacing you might want to get under there and check for bad or loose wire connections.
Reply
Old Feb 9, 2010 | 09:50 PM
  #5  
paulo57509's Avatar
Supreme Member
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

There's nothing wrong with the starter solenoid if the starter is spins. It's the starter drive that's bad.

You can either replace just the drive or just install a new/rebuilt starter.
Reply
Old Feb 9, 2010 | 10:09 PM
  #6  
305sbc's Avatar
Supreme Member
iTrader: (3)
 
Joined: Nov 2001
Posts: 2,428
Likes: 2
From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

Originally Posted by paulo57509
There's nothing wrong with the starter solenoid if the starter is spins. It's the starter drive that's bad.

You can either replace just the drive or just install a new/rebuilt starter.
http://www.samarins.com/glossary/starter.html


It doesn't take much power at all to spin an unloaded starter, but it does take a lot of power to engage the gears and spin. It also takes more power to actuate the starter gear.
What I'm saying is that the relay part of the solenoid could easily be at fault here. Either way the solenoid has to come off to fix it.
I just wanted to clarify.
Reply
Old Feb 10, 2010 | 10:54 PM
  #7  
paulo57509's Avatar
Supreme Member
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

Look at the diagram, specifically the solenoid.

When the ignition key is turned to start position, two things happen inside the solenoid.

1. Battery voltage from the ignition switch causes the solenoid to pull in and move the starter drive into position with the ring gear (shown as the Starter Control Circuit).

2. At the same time, it completes the circuit between the battery positive cable and the starter motor which causes the starter to spin (shown inside the solenoid as the "arm" and light gray box).

It is what happens in (2) above is why I say if the starter spins, it's most likely the drive that's slipping.

Replacement of the entire starter would be easier than tearing the starter down just to replace the drive.

Last edited by paulo57509; Feb 10, 2010 at 11:00 PM.
Reply
Old Feb 10, 2010 | 11:19 PM
  #8  
Gregzz4's Avatar
Member
 
Joined: Jan 2010
Posts: 295
Likes: 0
From: Burnaby, B.C.
Car: '78 GMC Sierra Heavy 1/2
Engine: GMPP ZZ4 Q-Jet
Transmission: 700R4 Stage 2 w/Race Internals
Axle/Gears: 10 Bolt 3:42 Eaton
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

And some guys call the drive a bendix.

You may want to consider upgrading to a gear-reduction starter ( if it's not already ).
They are smaller so they fit under headers and stay away from exhaust heat so are not so prone to having problems starting when the engine is hot. Also are great for hi compression motors. Just a thought if you can afford one.
Reply
Old Feb 11, 2010 | 05:27 AM
  #9  
ternandes's Avatar
Supreme Member
iTrader: (7)
 
Joined: Jan 2009
Posts: 1,176
Likes: 4
From: Moneta, VA
Car: 88 GTA
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: BW 9-bolt 3.27 posi
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

Having dealt with this issue at least a hundred times (no, not all on the same car), I agree that the most likely cause is the starter drive. Repair requires removal of the starter, and changing out the drive, also called a 'bendix', as was mentioned in another post.

It's easier to just change the starter... but less costly to just replace the drive. The tradeoff is that it requires a little bit of skill and patience to do the job, and you still have an old starter.

If it were my car, I'd change the drive, unless I was having other problems, such as the heat issues mentioned earlier.
Reply
Old Feb 12, 2010 | 03:08 PM
  #10  
91R5's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2009
Posts: 71
Likes: 0
From: Chesapeake
Car: 91 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Re: Somtimes Car doesnt start. Sounds like starter motor making a buzzing sound?

Originally Posted by ternandes
Having dealt with this issue at least a hundred times (no, not all on the same car), I agree that the most likely cause is the starter drive. Repair requires removal of the starter, and changing out the drive, also called a 'bendix', as was mentioned in another post.

It's easier to just change the starter... but less costly to just replace the drive. The tradeoff is that it requires a little bit of skill and patience to do the job, and you still have an old starter.

If it were my car, I'd change the drive, unless I was having other problems, such as the heat issues mentioned earlier.

well I put a new starter on. It cost me 75$. I guess that fixed it I haven't had anymore problems with it. The starter sounds a different pitch then my old one did. Thanks!!!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Spyder_TheGamer
Tech / General Engine
1
Dec 25, 2015 05:07 PM
midias
Exhaust
20
Aug 22, 2015 01:42 AM
milk
Engine Swap
10
Aug 10, 2015 06:26 PM
86Base
TPI
14
Aug 8, 2015 01:34 PM
mustangman65_79
Tech / General Engine
4
Aug 8, 2015 12:07 PM




All times are GMT -5. The time now is 08:02 AM.