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Alternator trouble? - Engine & Ancilliaries/Gearbox - The Lotus Forums Jump to content
Brendonian

Alternator trouble?

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I took to car for a spin today. Just a trip into town to buy some DIY gear from Wickes. All was well, giving it a little bit of a blast, when I suddenly got a high pitched metallic squealing sound from the rear of the car, this was soon followed by a burning smell. I backed off and dipped the clutch, and the engine cut out.

To cut a long story short, the AA man tested the battery, which was only reading 12 volts, so he attached his jumper pack, and managed to get the engine started, it was reluctant to run, and sounded like crap. At this point, there was a little smoke and a bad burning smell from around the alternator belt.

Best guess is the alternator has seized up. Is this a common problem? Or does anybody have an alternative theory? It's pretty hard diagnosing these things at the side of the road.

I can't say I'm impressed with the AA on this occasion. I only broke down a mile from home, and it took 5 and a half hours to get the car back here.

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Sounds like an absolute rare event, no record on any forums regarding alternator issues. 

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Hopefully, the garage will be able to look at the car by Monday, and I'll have a little more information.

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was the AC on? That is more prone to seizing and pretty sure it runs off the same belt

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Hi Ryan. Yes, it does now seem that the AC was the most likely culprit. The garage that investigated the problem found that the battery was partially failed, but the alternator was working fine. After a little more work, they found that there's no gas in the air con system. As far as they could tell, the AC compressor didn't seem to have seized, but they couldn't properly test it as the lack of gas in the system prevents the compressor from running.

 

As Lotus Silverstone have done a few repairs to the air con over the past year, it seemed best to pass the car over to them for further investigation. They can't fit me in until the 16th of Feb, so I'll just have to wait until then for more information.

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Is it under warranty? If not the lotus part is fortunes. Ryanmt and I have both fitted items from the state's for a lot less money. I don't know if it's true but sure I read somewhere the evoras don't have low pressure sensors! That might explain the issues we are suffering.

Gav

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Yes, I saw your previous posts about getting compressors from the US. That sounds great, but when I did a quick search recently, I was only finding second hand units for a reasonable price. New ones weren't looking much cheaper than Lotus by the time you add shipping and import duty.

 

If you can suggest a reliable source, that would be really helpful.

 

I've found a local company that says they can recondition my compressor for around £250, so that's another option.

 

For now, I'm going to have to wait until the guys at Lotus Silverstone have taken a look at the car before making any more progress.

 

The garage that looked at the car previously said they couldn't test the compressor because it wouldn't start up whilst the low pressure sensor was active. I have no idea whether the car actually has one, or not!

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Mine from memory was £270 ish delivered Inc tax but wasn'oem. Ryanmts was oem but he was in the states and he carried it back, genuine Toyota. I just got mine from eBay! I don't think it's a low pressure sensor more a speed sensor thing. I just reset my fault code with my torque pro app but as it was seized it just stalled the engine when I tried. If I had to guess I would say it's Goosed. I will have a look where minecame from.

Gav

Edited by 21gg_

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300923639172

This is on my saved eBay list. Don't know if it's the same supplier I used. Some on eBay now include duty upfront.

Gav

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Denso unit,eBay item:

251252107568

Gav

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Well, it's been confirmed the culprit was the AC compressor. I've had the old one rebuilt rather than import a new replacement. It was slightly cheaper, and means if I have any problems with it, I have a warranty with a local company so it will be easier to resolve.

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Ive still got my old one, may keep hold of it just in case!

Gav

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