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Topic: Battery Draining (Read 2646 times) |
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #20 on: Jan 11th, 2011, 9:24pm » |
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I have a voltmeter, I will have another crack at it tommorrow morning.
what do you mean by
"Turned out two parts of the chassisparts had torn and separated, causing a high groundresistance between battery and alternator!"
only ask as the car was in a crash last year and caused front damage. I hit the barrier and it ripped the front, but have fixed, had to do some welding too. And replace part at front i.e radiator, hydrolics for the steering etc. (Maybe the damage is more than I thought)
Cheers
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: Battery Draining
« Reply #21 on: Jan 12th, 2011, 2:38am » |
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Connect a jump lead between the battery earth and a good earthing point as near to the alternator as it will reach or bolt on any decent bit of sizeable wire from the battery earth to an alternator mounting bolt just to rule out a faulty earth.
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ABS multiplug wheel sensor pins MK IV or MK 20
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: Battery Draining
« Reply #22 on: Jan 12th, 2011, 9:41am » |
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Martyn - on a new car the chassis-parts form one nice welded low-resistance ground circuit.
The manufacturer can save a lot of thick-cable-cost by grounding various heavy current users just by connecting them anywhere on the chassis, assuming the return is zero Ohms.
When rusting at the seams OR after a crash those parts become partly separated.
I am sure you have seen cars where flashing indicators will dim the brakinglights in the same rhythm. Thats'a typical groundingproblem caused by rust, bad contacts, chassisparts not connecting well.
Now if this happens between your alternator, being ground on the engine and your batt being ground to your chassis it will hamper the chargingcurrent...
Please follow Tompion's excellent suggestion to eliminate this possibility!
Ray
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #23 on: Jan 12th, 2011, 11:56am » |
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Done the ground test no difference
Going to take to a garage.
See if they can find the problem, cheers for all your help.
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: Battery Draining
« Reply #24 on: Jan 12th, 2011, 1:01pm » |
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Given Highlanders suggestion of a faulty control panel, have you tried a different load without the blower? For example lights, heated seats. heated screen, brake lights & cigar lighters.
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ABS multiplug wheel sensor pins MK IV or MK 20
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #25 on: Jan 12th, 2011, 2:59pm » |
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I did, the reading were 12.5 - 12.7.
its only when the heater is turned on that it drops to 11.
+ as you will know it is was too cold to drive at night without the heater on.
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: Battery Draining
« Reply #26 on: Jan 12th, 2011, 3:12pm » |
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oz - please clarify... with [heater] -- do you mean the Blower/fanmotor of your heating/airco sysytem..?
Just to make sure we are talking same language here...
Ray
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #27 on: Jan 12th, 2011, 9:26pm » |
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i'm sorry that was my fault, it happens when I turn on the blower.
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Battery Draining
« Reply #28 on: Jan 14th, 2011, 1:32pm » |
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Talking of alternator earths, should there be a big cable joining engine crankcase to chassis?
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Mike H
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: Battery Draining
« Reply #29 on: Jan 14th, 2011, 1:42pm » |
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on Jan 14th, 2011, 1:32pm, Mike H wrote:| Talking of alternator earths, should there be a big cable joining engine crankcase to chassis? |
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Definitely yes. It is a must in order to avoid all kinds of stray currents and radio interference. It assumes that the Batt NEG is connected to chassis as well.
Ideally it should run from engineblock and/or alternator directly to batt NEG but sometime runs through various chassis parts that because of seams and rust can cause gremlins to happen after 10 years ;-((
Ray
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Battery Draining
« Reply #30 on: Jan 14th, 2011, 3:51pm » |
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That's what I was thinking. 
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Mike H
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #31 on: Jan 14th, 2011, 7:24pm » |
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Okay took it to my local garage, what a *** won't sware, he told me I have an electric drain on the car, well. duh!
He is obviously an idiot, he could not find it, and tried to charge me £80 for nothing.
Have lost a lot of faith in the car.
Going to put some new earth links at the front from the engine to the chasis on bothsides and do some mods.
Replaced the cc panel and no joy either!
I wan't to say cheers for all your help guys, going to start from the beginning, and fine comb the car, it's all I can do as can't drive at night with no heat.
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: Battery Draining
« Reply #32 on: Jan 14th, 2011, 9:43pm » |
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on Jan 14th, 2011, 7:24pm, oz-World wrote:Have lost a lot of faith in the car.
Going to put some new earth links at the front from the engine to the chasis on bothsides and do some mods.
Replaced the cc panel and no joy either!
I wan't to say cheers for all your help guys, going to start from the beginning, and fine comb the car, it's all I can do as can't drive at night with no heat. |
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Do not despair. I am certain we all by now now have experienced worse problems than this one blower glitch.
Let me recap. When does this drain happen?
1) when you leave your SATC on AUTO?
1a) Does that function OK?
1b) Does the fan blow fast and/or nicely decrease in speed over time when heating and reaching equilibrium?
1c) what TEMP setting? Both sides equal?
2) do you then have AC ON as well? Does it function i.e. do you have a cold and a hot pipe to the front?
2a) Is the drain behaviour similar when AC is OFF?
3) or do you have the fanspeed on MANUAL say halffway? If so why?
4) Does your SATC show blinkig numbers in the TEMP windows?
Curious
Ray
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oz-World
Newbie
Posts: 29
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Re: Battery Draining
« Reply #33 on: Jan 17th, 2011, 11:24am » |
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1) when you leave your SATC on AUTO?
1a) Does that function OK?
DOES NOTHING!!!!!
1b) Does the fan blow fast and/or nicely decrease in speed over time when heating and reaching equilibrium?
CONSTANT FAST BLOW!!!!!
1c) what TEMP setting? Both sides equal?
23 - BOTH SIDES!!!!!
2) do you then have AC ON as well? Does it function i.e. do you have a cold and a hot pipe to the front?
DON'T HAVE A/C ON - NEEDS REFILL
2a) Is the drain behaviour similar when AC is OFF?
3) do you have the fanspeed on MANUAL say halffway? If so why?
YES TO DE-MIST THE WINDOWS
4) Does your SATC show blinkig numbers in the TEMP windows?
00
DONE THE EARTHS STILL NO JOY!!!!
NOW THE PASSENGER SIDE FRONT SPRING HAS SNAPPED, WENT ON THE WAY THE BLACKPOOL WITH A RIGHT PING. HAD ENOUGH. THE CAR IS COSTING ME MORE THAN I'M EARNING.
I can replace the front unit, but need a break, it's been a headache, good job I have another vehicle.
Martyn
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: Battery Draining
« Reply #34 on: Jan 17th, 2011, 12:24pm » |
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ahhhhrrgghhh... know how you feel...
Blower
Adding all symptoms and trials together I would say sounds like there's 2 problems causing the drain.
- The SATC need resetting, so your temp windows will display temp properly and all electronic and flapssettings will be restored; see here
http://www.fordscorpio.co.uk/ccreset.htm
- You need a nwe HBC unit - with the long coolingfin this time; a few pounds at the breaker's
Front spring
first time ever I hear about that happening... heavy bump?
HTH
Ray
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Battery Draining
« Reply #35 on: Jan 17th, 2011, 12:53pm » |
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Sleeping policemen!
I know someone with a Ford estate something or other, has busted 2 springs so far on all the blasted speed humps where he lives
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Mike H
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Chieftain
Full Member
Mechanically Challenged with a 24V Cosworth
Posts: 491
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Re: Battery Draining
« Reply #36 on: Jan 17th, 2011, 4:32pm » |
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Both mine went last year 
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Bob
if it ain't broke fix it and it will be
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