Hi all. My transit has trouble starting only in bad freezing conditions. I guess this is low battery voltage?
Anyway.... On Saturday I connected a stereo, took it for a short spin, stopped at a shop, started, got home. It stood all day yesterday, and today I took it for a spin. Being warmer these days there was no problems starting. 5 minutes later I parked up and switched off engine, then decided to eject the CD from the stereo, so turned the key to start her up again so I could do this. It wouldn't start - cranking over OK, really strong (not like usual cold start), but not firing. As the stereo face and CD were still in, the stereo was loading up at the same time as ignition and cranking. So... My question is, being as the battery might be low on voltage, would this extra draw from the stereo at start-up cause not enough voltage to fire the engine???
I had to bumpstart, then stopped on a hill, switched off and started again with the key, OK. Parked up a minute later, switched off, tried to start - same problem again. So I took stereo face out and drove home. Stopped on hill, started with key no probs. Checked under bonnet, all wiring good and tight. Started with key, without stereo in, all good, went for a spin, stopping on hills and starting with key. No problems.
Could be the stereo, then, but I don't want to get too cocky and 'safe' that its the stereo, though, as it could well be fuel pump on way out coincidentally. But I just thought I'd ask if it's possible for stereo draw at ignition to reduce battery voltage sufficiently to fail to start?
The stereo is 15A, so whatever it draws is more than a 10A stereo would. I wired into Fuse 11 with the inside lamp and clock, which had a 10A fuse, which I replaced with a 15A. So there's definately more draw at ignition. But would this be enough to cause start fail?