Important! : alternator can i fix over voltage

10th September 2011, 23:41

been driving me saxo vtr w reg for a while with the lights flicker and most times when it gets up to temperature dash board lights dim headlights go bright speedo and rev fuel and temp gage go to zero or some times stay at 40 or 60 how ever fast im going .......just does my headin that only sometimes it goes mad when it goes to temparature ive been looking on forums cant find a answer if its the alternator over charging could i get it fixed dont want to pay money id rather give someone 50 quid on here to tell me the problem and to fix it once and for all ive done alternator test take of the battery lead it runs fine it seem almost every time i go over a bump its fine when im moterway driving its fine oror maybee sometimes the batttery light will dim the battery is charging it starts everytime no problem i know someone out there has had the problem please tell me and if its the problem ill send u 20 quid throgh pay pal to show my thanks please guys or girls helpppppp....................

10th September 2011, 23:47

mine did this, put a new alt on it and new alt to battery cable all good now

10th September 2011, 23:55

Quote:

Originally Posted by Saxotim

mine did this, put a new alt on it and new alt to battery cable all good now

im 90 % sure it will be but all seems like alternator really wish i could fix the problem on the alternator looks like a brandnewone on then or ill have a look at the alternator first and take it apart clean it and then change wires if it works for a week with no problem i wont for get ya thanks pal

11th September 2011, 00:01

Check all wires are connected properly...

Ive gone through 8 alternators in 2 years so i know a fair bit about them lol..

Put a multimeter across the battery terminals and set it to voltage,
whilst the multimeter is on there blip the throttle, the voltage should go up or remain within the range of 12-14v.
Turn your rear heated windows on, hot blowers on full and your main beams on. You should not drop below 11.5v

If it drops low enough check the following.

Wires could be corroded around the terminal plugs
Wires could be disconnected from terminal plugs
Is your belt worn out? (£10 for a new goodyear belt from local motorfactors if it is)
Battery could be refusing charge (get another battery that works and try that)
belt too loose (but this may squeal)

steps you coudl take to fix

Remove corroded wire and fix new terminal plugs to end.
Replace belt
Adjust tension
replace battery
and finally, replace alternator.. my advice on this one is dont get one from scrappies (Thats why I have gone through 8) I bit the bullet and bought a new valeo one on an exchange for £80 from GSF.. no probs since..

Another thing, im not after your money, just want to help you with your problem

11th September 2011, 00:08

First of all check all your earth wires clean them and the mating surface with sandpaper

12th September 2011, 00:05

Quote:

Originally Posted by Slugshead

Check all wires are connected properly...

Ive gone through 8 alternators in 2 years so i know a fair bit about them lol..

Put a multimeter across the battery terminals and set it to voltage,
whilst the multimeter is on there blip the throttle, the voltage should go up or remain within the range of 12-14v.
Turn your rear heated windows on, hot blowers on full and your main beams on. You should not drop below 11.5v

If it drops low enough check the following.

Wires could be corroded around the terminal plugs
Wires could be disconnected from terminal plugs
Is your belt worn out? (£10 for a new goodyear belt from local motorfactors if it is)
Battery could be refusing charge (get another battery that works and try that)
belt too loose (but this may squeal)

steps you coudl take to fix

Remove corroded wire and fix new terminal plugs to end.
Replace belt
Adjust tension
replace battery
and finally, replace alternator.. my advice on this one is dont get one from scrappies (Thats why I have gone through 8) I bit the bullet and bought a new valeo one on an exchange for £80 from GSF.. no probs since..

Another thing, im not after your money, just want to help you with your problem

hi thanks so much ive been told all kinds of things i will get a alternator but what baffels me it works fine up and down moterways only when in the 30 and 40 it starts to play up im trying to find new battery leads phoned gsf they dont do em been halfords today they do em but not long enuff but i will change em thanks so much for all your help ill keep updated ,,, next thing is the central locking the solinoid came off door coz there was no central locking when i had car all i need is the bracket or clip what holds the solinoid on cant find one on eaby looks like citren tommorow

12th September 2011, 22:50

broght new battery not the same after the mechanic checked alt and bat said i need new bat but still does same so while it went into mad mode (bright lights lack of power dashboard rev speedo fuel temp) got me a new volt meter it was reading over 17 voltys so new alt it is but if it does it again god nosew

12th September 2011, 23:25

new altenator needed, battery will fry!