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1999 Ls400 Will Not Start In Freezing Conditions


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Hi All,

I hope this topic is in the right place as it's my first post.

My LS400 has been out in these freezing conditions while I have been away and, although the starter motor turns over nicely, there is no sign at all of the engine firing. Is this likely to be a frozen fuel line and, if so, is there any way I can safely coax it back into a thawed state?

Any ideas gratefully received!

Thanks

Ian

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Hello and welcome to the LOC,

You are not quite in the right place with this topic so maybe one of the mods will move it to the LS forum where you will get more responses.

With it cranking over it would seem the Battery is OK and if I remember correctly there are no distributors or HT leads on the series 4 models.

The fuel lines will not freeze with petrol in them.

Is the engine management light staying on? Might be worth getting the OBDII codes read to see if there is a problem.

The only major items required to fire an engine are air,fuel and a spark and several sensors to tell the engine computer what is going on.

If you have all the 3 mentioned above the crankshaft sensor if faulty will prevent the engine firing but these generally fail when hot not cold

If you have Home start or equivalent rescue cover get them out.

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Hi All,

I hope this topic is in the right place as it's my first post.

My LS400 has been out in these freezing conditions while I have been away and, although the starter motor turns over nicely, there is no sign at all of the engine firing. Is this likely to be a frozen fuel line and, if so, is there any way I can safely coax it back into a thawed state?

Any ideas gratefully received!

Thanks

Ian

Hi is the engine turning over or is the starter just whirring & not engageing.

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