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Discussion Starter · #1 ·
Ok All

this is a 04 Mk1. started having this problem a few weeks ago with intermittent starting in morning, turn key can hear pumps and starter click but engine does not turn over, so changed starter motor. Problem appeared fixed then it started happing again so changed Battery which was old. Same problem starter clicks engine does not turn over, Jump start sometimes works but not every time. Therefore went through wiring check earth strap and feed to motor cannot find anything wrong any ideas.

Confused
Brian
 

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'06 MG ZR +120 (HQM) '04 MG ZR 105 (IAB)
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If you are only getting a click from the starter motor, it usually suggests either the starter solenoid is sticking, or the starter motor is getting insufficient power.

Was the replacement starter motor a new one, or second hand? You would be unlucky to get a replacement which also has a sticky solenoid, but it has been known. Corroded or damaged battery earth straps giving a poor electrical contact is a common cause on older cars - might be worth a double check?
 

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Discussion Starter · #3 ·
starter was reconditioned unit, as for wiring I've checked and cleaned the earth bonding, Also used jump lead from Negative battery terminal, direct to engine. I'm leaning towards a faulty reconditioned starter motor.
It has a guarantee. If I get no where I will return it
Brian
 

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Discussion Starter · #4 ·
okay Ive replaced the starter again and still get same problem. solenoid clicks but not turning over. Question is there a relay between the ignition switch and starter solenoid.

many thanks Brian
 

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Your problem is easy to fix. I have had a jamming starter motor which I have fixed 3 times, seems ok now, due to internal rust caused by driving through floods. Your problem is surely the thick red power or thick black engine earth wires have a bad connection and won't pass high current. The whole m47 engine and ECU will run even with bad electrical power, but the starter needs excellent connection to spin up. It could also be both starters are bad. Click but no spin means take lid off rear of the solenoid box on top of motor. The copper contacts in there get caked in burnt grease and make for same symptoms.
 

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Discussion Starter · #6 ·
Thanks Joe I have rebuilt my original motor with new solenoid parts will fit this weekend I have already cleaned the red starter motor lead and still does so change motor again if it does not fix it then im think replace both earth strap and starter leads see what happens.

Brian
 

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Thanks Joe I have rebuilt my original motor with new solenoid parts will fit this weekend I have already cleaned the red starter motor lead and still does so change motor again if it does not fix it then im think replace both earth strap and starter leads see what happens.

Brian
Try a lead to the starter solenoid + terminal straight from the battery, if this works you have an issue with that circuit rather than the starter solenoid itself.
 
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