cold starts

[bb25]

hi my son as a j reg mini cooper which as started starting very badly when cold sounds like its missing or some think runs fine when warm

[DanGT]

If you want an reply please give more info. All the time when wet when very cold. Dose the engine speed make a diffrence etc.

[bb25]

just when it starts if engine is cold. if its hot runs fine no stalling or any thing

[guru_1071]

id guess its the wrong or faulty coil. yours is round the era of 9 volt ballest coil, so if the wrong (i.e a 12 volt) coil has been fitted (or vica-versa) then starting will be an issue as the cold cranking drops the volts to low.

its easy to check with a meter

edit - if it is a j reg cooper it will (or should be) a 12 volt mg metro type electronic ignition, so check a 9 volt coil hasnt been fitted

Edited by guru_1071 on Saturday 27th September 10:53

[joan or ark]

is it injection or carb, possibly a faulty choke