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Seat Alhambra Diesel Engine Issue

Hi. I'm having some trouble with my 2003 Seat Alhambra diesel. It's got some kilometers on it. The check engine light came on, and I've noticed higher fuel consumption and reduced engine power. I scanned it, and it's showing cylinder pressure fluctuation. Could this be crankshaft related? Is it something serious, like the turbocharger needing replacement? I'm hoping it's not a major issue, as I don't have a ton of money to spend on repairs.

A 2003 Seat Alhambra diesel was experiencing higher fuel consumption, reduced engine power, and a check engine light, with a diagnostic scan indicating cylinder pressure fluctuation. Possible causes discussed included issues with the crankshaft, turbocharger, intake manifold, or timing belt. The problem was ultimately traced to a faulty sensor, which was resolved without cost, restoring normal engine performance.

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4 comment(s)

Sounds familiar. I had a similar issue with my Alhambra. Check your intake manifold and turbocharger hoses for leaks. A small crack can cause pressure fluctuations. Has the timing belt been inspected recently?

Thanks for the quick reply! The intake manifold was mentioned during the last service, I will check the turbocharger hoses. When you had the problem, did you also experience reduced engine power or any engine knocking?

Yes, reduced power and a slight engine knocking, especially when accelerating. I'd get it checked out by a professional. A proper diagnostic scan should pinpoint the root cause. Could save money in the long run. Don't keep driving it like that.

Just wanted to let you know, you were right! The mechanic found a faulty sensor causing the error. They cleared the code, and the engine is running smoothly. No engine knocking, fuel consumption is back to normal, and the check engine light is off. Best of all, 0€ repair cost! Thanks again for the help!

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SEAT

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ALHAMBRA