Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving

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Wed 11 Jun 2014 09:52
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - lovelldr

Hi guys.

Recently, I've noticed that my car seems to be hiccuping quite a bit lately when just strolling along. If I'm accellerating, and do not have my foot on the accelerator, then it does not seem to have this problem. But, if I'm just strolling along keeping a steady speed, then I've noticed that it seems to be hiccuping.

About 5 years back (about 2 months after the warranty expired), I had an issue where I had the glowplug lights come on. Took it to the ford garage, who told me that the turbo needed replacing, £1500 please... Not happy with that, I had a look online, and noticed that it was probably the soot that was causing the issue. So, since then, every week, I have tried revving it high going uphill to clear out the soot. I've not had any problems until about 3 or 4 weeks ago, when I noticed this hiccuping had started...

Previously when accelerating uphill, if I'd done it just a few days ago, there would be no black smoke out the exhaust. Now, I can probably get it to give the black smoke every day when going to high revs...

Not sure whether the black smoke and hiccuping are related or not?!

Does anyone have any advice they can offer me please :)

Need to book it in to a garage, but thought I would come on here first to see if people have had similar issues/knowledge on the problem.

Thanks a lot :)

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Wed 11 Jun 2014 15:06
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - madf

EGR valve blocked/stuck.

Turbo vanes jammed/turbo valves blocked.

MAF sensor dirty

Air filter blocked.

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Thu 12 Jun 2014 20:20
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - MrEckerslikefromRamsbottom

Had any fault codes read?

A Google search brings up 'Turbo Actuator Problem' P132A P132B as common on the Mondeo.

www.ecutesting.com/ford_mondeo_tdci_turbo_actuato....l

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Sun 29 Jun 2014 16:29
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - Last Hope

This is quite scary, that no one has said anything ! I have read of several cars doing this this, and seen, three in the final stages. What happens is the slow wear and tear of the turbo bearings. This allows oil from the sump to be sucked into the air intake. This intermittent enrichment causes poor running, but it clears and the driver continues. Blissfully unaware. The bearings continue to wear out and more and more oil is sucked out of the sump. A truly tiny amount at first, hardly worth a mention. But as the amount increases, it takes over running the engine. At last, the driver can withdraw the keys, lock the doors and walk away, as the engine continues, as though by magic, all by itself. The bearings fail still further, and the engine speed increases, frightenly so ! Until, there is no longer any oil in the sump, and the engine is wrecked ! Hand brake, foot brake, and fifth gear might stall the engine and avoid the calamity. Fore warned, is fore armed.

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Sun 29 Jun 2014 17:11
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - Peter.N.

I would be inclined to take it to a diesel specialist rather than the dealer, they usually know what they are doing so it works out cheaper.

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Sun 29 Jun 2014 20:28
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - galileo

Last Hope, your comments are interesting, I would add a few details to clarify.

Turbos do not suck oil from the sump, oil is supplied to them by the engines oil pump. The oil inlet feeds oil under pressure to the centre of the bearing system ( oil pressure will normally be twice the potential negative pressure at the turbo intake, which is obviously less than 1 atmosphere)

At the turbine end, any leakage past the bearing sealing system will feed oil into the exhaust, where it will burn, causing smoke.

At the other end, it is possible for oil to leak into the centre of the compressor, from where it can be fed to the engine; if there is a major failure of the seals and slingers a runaway is certainly possible, as you say, usually there are warning signs.

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Wed 2 Jul 2014 10:33
Ford Mondeo TDCi 56 Reg - Car hiccuping and black smoke when revving - LewisBH

That sounds like a dirty turbo to me! Your turbo is probably covered in carbon deposits. There are plenty of products you could use that are avaliable to clean a turbo, you should try and clean it before you take it to a mechanic because chances are they will just want to replace it again!

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