Naff starter motor?
Author
Discussion

Rigbyy

Original Poster:

622 posts

193 months

Tuesday 7th December 2010
quotequote all
Went out to start my car earlier, wouldnt start, made a clicking noise as if the battery was dieing, but put a multi meter on it and it read 12.67V so im guessing thats plenty to start a car in the cold. So if I'm right in thinking that the starter motor is the only thing it can be, it also doesnt like starting when hot. Now it does have a current injector problem where one of them is tempermental and doesnt always work but even still I would of thought it would still splutter and start.

Just wanted to make sure it is the starter motor before I go and buy one and its not that.

HellDiver

5,708 posts

203 months

Tuesday 7th December 2010
quotequote all
Voltage doesn't equal current.

BrianMillar

192 posts

226 months

Tuesday 7th December 2010
quotequote all
Could be a dead or dying battery.
The voltage can measure OK when there is no load on the battery but collapse as soon as load is applied (Starter motor).

The click sound is normally from the solenoid that engages the starter motor.
This has normally two possibilities.
Flat or dead battery
Jammed Starter motor

From what you describe the first thing I would check is the battery.
a) Is it fully charged?
b) Get the battery drop tested (that doesn’t mean throw it on the floor).

Most garages or tyre and battery places will have a proper drop tester. The difficulty nowadays will be finding someone in a garage that knows how to use it.
It can also be done with a multimeter. There are many explanations online of how to do this. (Google battery drop test)

Hope this helps.

Prof Prolapse

16,163 posts

211 months

Tuesday 7th December 2010
quotequote all
BrianMillar said:
Could be a dead or dying battery.
The voltage can measure OK when there is no load on the battery but collapse as soon as load is applied (Starter motor).

The click sound is normally from the solenoid that engages the starter motor.
This has normally two possibilities.
Flat or dead battery
Jammed Starter motor

From what you describe the first thing I would check is the battery.
a) Is it fully charged?
b) Get the battery drop tested (that doesn’t mean throw it on the floor).

Most garages or tyre and battery places will have a proper drop tester. The difficulty nowadays will be finding someone in a garage that knows how to use it.
It can also be done with a multimeter. There are many explanations online of how to do this. (Google battery drop test)

Hope this helps.
Or it's immobilised?

Personally I'd just see if I could jump start the car with a set of leads for a tenner from Halfrauds.

If it does then buy a new battery.

ETA: If doesn't then remove the starter, try and start it using the same jump leads. You'll know if it's felched then.

ETA 2: Try the hammer thing first though!



Edited by Prof Prolapse on Tuesday 7th December 13:10


Edited by Prof Prolapse on Tuesday 7th December 13:11

Rigbyy

Original Poster:

622 posts

193 months

Tuesday 7th December 2010
quotequote all
Well its a newish, replaced it last winter when the old one died, battery so it should be alright but you never know.

Ill try jacking it up and giving the starter motor some persausion. Either way its going in for its service, well overdue, tomorrow morning and they can pick it up if needs be, the garage is only round the corner.

varsas

4,071 posts

223 months

Tuesday 7th December 2010
quotequote all
I'm having the same issues. After trying 5 different batteries, including a brand new one with 680CCA, I have decided it's the starter that's at fault; despite the car starting fine when jumped and when warm.

littleredrooster

6,107 posts

217 months

Tuesday 7th December 2010
quotequote all
Your battery is too flat to start the car. Put the meter across it and get someone to turn the key. If it drops below about 9v under load, it's either flat or fekked.
Charge it overnight, jump it from another car or buy a new battery as appropriate.

thenorth

57 posts

181 months

Tuesday 7th December 2010
quotequote all
Also check you oil(i know it sounds stupid) if its low it raises the resistance inside the engine. when combined with a old battery and freezing temperatures it results in the starter being unable to get everything moving.

ThatPhilBrettGuy

11,810 posts

261 months

Tuesday 7th December 2010
quotequote all
thenorth said:
Also check you oil(i know it sounds stupid) if its low it raises the resistance inside the engine. when combined with a old battery and freezing temperatures it results in the starter being unable to get everything moving.
That's rubbish. In fact less oil would lower the starting resistance.