Technical Fiat Punto Problem Starting

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Technical Fiat Punto Problem Starting

s.waring3578

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I also have a problem starting the car in the morning. It sounds like the battery is flat, but I have had the battery tested at a couple of places and they say the battery is fine but it is just flat, something is obviously causing the battery to go flat overnight. The car has a good run during the day as I am travelling about 40 miles every day.

COULD ANYONE PLEASE PLEASE HELP.
 
What you have said sounds like the battery is not holding a charge i would replace with new battery or borrow one if that dont work only other things i could think of is starter motor or fuel injection related..
 
Try disconnecting battery overnight and see if its still flat in morning, maybe something internal is draining it.
How old is the battery?, over 2 years its probably had it. They are not expensive to replace anyway, cheaper than an opinion from Fiat garages.
Who makes the decision that the battery is flat?, is it measured properly in the morning?, or just the starter is slow turning?
 
Definately sounds like a knackered battery, but it could be something is staying on in the car after you go to bed, like maybe the interior light or the radio,
Do exactly what "reddy4bed" said and then youll know which of the two options is causing the problem,,.,., this used to happed to my old civic because of the glove box light,.,.took me ages to figure it out
 
What do they mean by the battery is fine then. It's been tested twice using there high-tech equipment. I'll have a look out for anything that could be draining the battery and do exactly what 'ready4bed' said.

Cheers guys.:D
 
its brobably because there reading just after youve charged it
(after you ran the car)
my sister had the same prob with her punto and a new battery solved it,,,.,.
 
if you put a new battery in and it still happens it will be due to the alternator not charging the battery. while you drive the battery will run flat because it is not getting charged. then the next time you try to start the car it is dead.
 
hi there i'm new here i have allmost the same problem in the morning i have trouble starting my punto mk2 1.2 8v. like there is no power the battery is quite new (not even a year) and if i return for about 15 minutes it starts normal or if i dont wait (cuz i dont have time) i need to push it or start it with the cabels.... does anyone have some idea what the hell is going on its frustrating lil bit.... thx in advance
p.s. sorry for my bed english
 
When a garage tests a battery, the device they use puts a significant load across the terminals and monitors the output voltage. A battery that is past its best shows a greater voltage drop. So if the garage says the battery is fine, it probably is.

So, why does it (a) go flat or (b) not start the engine?

(a) Battery goes flat if you take more out than you put in.
ENERGY OUT: Energy is taken out by any load that is present when the alternator is not supplying power. That includes starting the engine and anything still on when the engine is not running (any lights, including courtesy, glove box, boot, etc., stereo system, clock, anything plugged into the cigar lighter, etc.). Energy taken when starting can be excessive if there is a fault with the starter motor or its solenoid.
ENERGY IN: Energy goes into the battery from either the alternator or your battery charger. The alternator can typically generate 50 amps or more and provides enough power for all electrics in the car as well as some to charge the battery, but only of course while the engine is running. If there is a problem with the alternator (e.g faulty unit or slipping drive belt), a red warning light should come on (sometimes looks like a battery). If that light is off, you can assume the alternator is doing its job. However, it takes time to recharge a battery, especially if the engine has to be cranked a lot to start it. A car used regularly for short runs might not get enough recharge to cover that used during starting (answer - longer journeys or periodically recharge overnight with charger).

(b) Battery does not start the engine.
During cranking, up to 300 amps is needed so the battery has to be in reasonable condition and well charged.
Could be a fault in the starter motor or its pre-engage mechanism. Can flatten the battery due to excessive wasted current.
Could be a poor earth connection (poor starting but probably won't flatten the battery because current is not flowing adequately).
Could be a duff battery but the garage discharge test should eliminate that.
Cold weather doesn't help -the battery capacity is reduced as temperature falls.
Could be an incorrect battery. Ratings for batteries allow for total capacity and also for maximum discharge current. Diesel engines tend to need batteries with higher maximum dischage current as these engines are harder to crank (higher compression and more cycles needed to establish combustion). Higher capacity batteries are needed for vehicles with lots of accessories (high-end models).

red.
 
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