iwishiwasangus Posted October 31, 2014 Share Posted October 31, 2014 Hi all I've had my issue for around 18 months now, and after lots of attempts to diagnose I think I may have an answer but could do with some more professional opinions. I posted on here a while back about the issue which is the battery light being on, and the heated screen not working. I tested the battery with a voltmeter and it's fine. It hasn't let me down once in 18 months, and it's never flat. I have spoken to an ex auto electrician and he told me how approximately 50% of batteries replaced on cars aren't faulty at all. He suggested that on my car (MK1) the cable which connects the alternator to the battery runs right past the manifold and therefore it's possible and likely that the fault is that cable. Does anybody have any diagrams or links to how easy or hard it is to replace? Also a link to a new part would be amazing :) Thanks! Quote Link to comment Share on other sites More sharing options...
GingerFlame Posted October 31, 2014 Share Posted October 31, 2014 the cable that connects the alternator to the battery can easily be replaced using a length of 0 gauge wire :), could even fashion the part yourself as a lot of people do. the original wire isn't quite that big but it's just extra piece of mind. replacing the ground cable that goes from the chassis to the battery with 0 gauge and also adding an additional earth to the engine is rumoured to inprove performance too! (sorry for off topic) fordpartsuk may have the part you need Quote Link to comment Share on other sites More sharing options...
iwishiwasangus Posted November 1, 2014 Author Share Posted November 1, 2014 Thanks! Is it quite a common issue then? This mechanic seemed to think it was? Quote Link to comment Share on other sites More sharing options...
stef123 Posted November 1, 2014 Share Posted November 1, 2014 I can't see how you think that cable is faulty to be honest. Disconnect both ends and check the continuity of it, you should get a very very low ohms reading - a micro ohmmeter is needed for an exact answer. Unless of course you have a high resistance. An insulation resistance tester will also tell you if there is a problem with it. 1 Quote Link to comment Share on other sites More sharing options...
iwishiwasangus Posted November 1, 2014 Author Share Posted November 1, 2014 I got there through process of elimination really. The battery is fine The alternator is charging said battery, So what else is telling the car to show a red light and cut off the heated front screen? I'm at a loss!! Quote Link to comment Share on other sites More sharing options...
IINexusII Posted November 1, 2014 Share Posted November 1, 2014 does the MK1 have ford's smart charge system? Quote Link to comment Share on other sites More sharing options...
iwishiwasangus Posted November 1, 2014 Author Share Posted November 1, 2014 I think it might do, yes. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.