Bignorm43 Posted April 14, 2022 Share Posted April 14, 2022 Ford Focus zetec 1.8 zetec 2007.Red battery light on,engine revving.Been checked by mechanic new alternator,checked by auto electrician ,ECU just undergone tests no faults.Pleaseb someone help driving me mad. Quote Link to comment Share on other sites More sharing options...
isetta Posted April 14, 2022 Share Posted April 14, 2022 More important - is it charging or not. If it’s charging I could live with the red light. Quote Link to comment Share on other sites More sharing options...
isetta Posted April 14, 2022 Share Posted April 14, 2022 Petrol or diesel? I ask because I know diesel has a one way clutch in the pulley which can fail so alternator spins slower than should. The pulley and shaft is separate from the alternator. I don’t know what the setup is on petrol 1 Quote Link to comment Share on other sites More sharing options...
Bignorm43 Posted April 14, 2022 Author Share Posted April 14, 2022 It is a petrol and according to mechanic was charging before sent ECU back for testing Quote Link to comment Share on other sites More sharing options...
Damian Garvey Posted April 14, 2022 Share Posted April 14, 2022 It means your battery is angry... Quote Link to comment Share on other sites More sharing options...
Bignorm43 Posted April 15, 2022 Author Share Posted April 15, 2022 Brand new battery and he is very happy 1 1 Quote Link to comment Share on other sites More sharing options...
Carl123 Posted April 15, 2022 Share Posted April 15, 2022 Go to Kwik fit for a free battery and charging system test and see what they say https://www.kwik-fit.com/batteries/information/free-battery-check?gclid=Cj0KCQjwr-SSBhC9ARIsANhzu15waD0RZlVB_70dWPg1-x9OhwZyMxSibrCVshW9mB2a65Yrtxn0NNIaAv07EALw_wcB Quote Link to comment Share on other sites More sharing options...
FatHead1979 Posted January 14, 2023 Share Posted January 14, 2023 On 4/15/2022 at 12:21 PM, Carl123 said: Go to Kwik fit for a free battery and charging system test and see what they say https://www.kwik-fit.com/batteries/information/free-battery-check?gclid=Cj0KCQjwr-SSBhC9ARIsANhzu15waD0RZlVB_70dWPg1-x9OhwZyMxSibrCVshW9mB2a65Yrtxn0NNIaAv07EALw_wcB I'd rather eat a steaming dog ***** than trust Kwik Fit to do anything other than change a tyre! 2 Quote Link to comment Share on other sites More sharing options...
isetta Posted January 14, 2023 Share Posted January 14, 2023 Does it have battery monitor on the negative battery terminal?(not sure what year they started putting those on) I recently bought a digital voltmeter that plugs into cigarette lighter. About 6 quid on eBay . It’s quite handy for seeing what’s going in without messing about with a multimeter and connecting the wires. This kind of style: Quote Link to comment Share on other sites More sharing options...
FatHead1979 Posted January 14, 2023 Share Posted January 14, 2023 25 minutes ago, isetta said: Does it have battery monitor on the negative battery terminal?(not sure what year they started putting those on) I recently bought a digital voltmeter that plugs into cigarette lighter. About 6 quid on eBay . It’s quite handy for seeing what’s going in without messing about with a multimeter and connecting the wires. This kind of style: I've never seen on a MK2/MK2.5, I think Ford introduced them as part the BMS on the MK3. Quote Link to comment Share on other sites More sharing options...
Ecosport2019 Posted January 14, 2023 Share Posted January 14, 2023 Mk2 focus had smart charge, have you got 3 wires going to your alternator multiplug? If so, you will probably find your purple wire if i remember correctly is broken somewhere. Quote Link to comment Share on other sites More sharing options...
unofix Posted January 14, 2023 Share Posted January 14, 2023 By what a lot of sudden activity on this old post. Originally posted in April 2022, the OP has not been back to read any of the replies since 4th June 2022 🤔 Quote Link to comment Share on other sites More sharing options...
Ecosport2019 Posted January 14, 2023 Share Posted January 14, 2023 Haha hadnt noticed the date! Quote Link to comment Share on other sites More sharing options...
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