308 SW 1.6 hdi help needed please

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Timdoran
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Joined: 19 Nov 2021, 22:03
Location: Bath, UK
My Cars: 308 sw 2010 1.6 hdi

308 SW 1.6 hdi help needed please

Post by Timdoran »

I really hope that someone can help with my problem, so many thanks in advance.

I have a 2010 308 SW 1.6 hdi 110. Recently it has developed a hot start problem. It starts from cold and runs fine but wont start if its hot. On advice from a mechanic, if I pour water over the fuel pump it starts. Otherwise I have to wait 30 minutes for it to cool.

I have put a basic error code checker, and there were none.

Does this suggest that the high pressure fuel pump is on its way out, or could it be the fuel pressure sensor screwed into the fuel pump?

Any suggestions for what to do next would be greatly appreciated. I have had a search but not got an exact match back. Happy to be pointed in the direction of another good thread.

Cheers
Tim
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RichardW
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Re: 308 SW 1.6 hdi help needed please

Post by RichardW »

Are you sure it's the fuel pump? It's buried right down the back of the engine and is all but invisible... You would need to get it on a decent diagnostic computer to have a look at the live data when cranking to see what is wrong.
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Timdoran
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My Cars: 308 sw 2010 1.6 hdi

Re: 308 SW 1.6 hdi help needed please

Post by Timdoran »

Hi Richard, maybe we are thinking of different things. I thought the high pressure fuel pump is on the top of the engine to the right hand side?
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RichardW
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Re: 308 SW 1.6 hdi help needed please

Post by RichardW »

No, I suspect that is the fuel filter, can you post a picture? If it's not been changed, then I would get a new filter put in it as a start. These are sensitive to excess pressure drop through a dirty filter.
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Timdoran
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Joined: 19 Nov 2021, 22:03
Location: Bath, UK
My Cars: 308 sw 2010 1.6 hdi

Re: 308 SW 1.6 hdi help needed please

Post by Timdoran »

This is not my engine, but the red circle shows where the fuel pump is. It's mostly hidden by the plastic air duct things. The filter is behind that.
It has had a fuel filter change with no change to the symptoms.
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RichardW
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'13 3008 1.6 HDi GripControl
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Re: 308 SW 1.6 hdi help needed please

Post by RichardW »

Ah, that's the vacuum pump...no idea why cooling that would affect starting! The engine earth is under there somewhere on top of the gearbox... maybe, just maybe, it is a bit iffy and the water runs down onto it and makes enough of a connection to get the starter speed up. Does it sound different cranking when you've cooled it?
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alexvalcic
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Re: 308 SW 1.6 hdi help needed please

Post by alexvalcic »

What you poured with water is a vacuum pump. On that occasion, you are actually cooling the starter on the gearbox. Check the speed at cold start and at warm start with the help of diagnostics.
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Huskyxantia
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Xsara Picasso 2019 to 2022 r.i.p
Xantia mk1&2 1.9D & 2.0Hdi
Peugeot 206 sw 1.4hdi
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Skoda fabia,escort van,ford ka,Vauxhall astra g car & estate, Vauxhall corsa b, Suzuki swift
Escorts mk 1,2,3,4,5 fiestas mk 1,2, Sierra diesel mk1 Mondeo mk1 diesel .
Peugeot 207 , 307sw

Now cars
Picasso 2.0Hdi now gone to scrappie
Citroen zx estate 1.9D the cherished one
Peugeot 206cc raised from the dead & saved from the crusher traded up to a 308cc
307sw traded for the 207 .

Wish list.
Peugeot 405 diesel
106 or 206
Mondeo Mk1 diesel once owned 1.8tdi was real nice.
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Re: 308 SW 1.6 hdi help needed please

Post by Huskyxantia »

Egr valve ?
Husky. :?
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