Ask Honest John

Honest John Ask Honest John » Issues with fuel sending unit
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Issues with fuel sending unit

I have suffered two fuel sending unit failures with my 2010 Hyundai Santa Fe. On each occasion the vehicle had driven without problem. The first time it was parked overnight, and then failed to fire the second occasion it had driven 180 miles of motorway driving, stopped for 10 hours then failed to start.

The first time the garage reckoned it was blocked fuel filter, which took three days to find (no fault codes in diagnostics). The second time the garage found metal swarf in fuel, which is now being sent off for testing. Vehicle only has 34,000 miles on the clock.

My neighbour down the road has the same problem and ultimately found that fuel sending unit had self-destructed filling fuel system with metal swarf and blocking fuel to engine. Is this a common problem with this make and model of car?

Asked on 29 July 2014 by RugbySanta

Answered by Honest John
Added to the car by car entry: www.honestjohn.co.uk/carbycar/hyundai/santa-fe-200.../ Previous reports of failing low pressure fuel pumps on 2006-2009 Santa Fes, and of blocked fuel filters because of emulsified globules in the diesel itself. If you and your neighbour both fuel up at the same fuel station then the problem might be there and water in the fuel or otherwise lack of lubricity could be causing the problem with the low pressure pumps.

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide
Similar questions
2009 Hyundai Santa Fe has a timing belt and reading the handbook it tells me that my 2.2 diesel only requires its timing belt replaced every 100,000 miles or 10 years. Yet the petrol model of the same...
My Santa Fe broke down on the M5. It was taken to Hyundai Murley in Stratford. The cam shaft seized in the cylinder head. The car is still under 5 year warranty. Hyundai has refused warranty cover over...
I am a lady driver living in the country side - up a mountain with a small narrow laneway up to the house. Conditions in winter are wet, mucky and sometimes a week or two of snow and ice. There are...
Related models
Relaxed motorway cruising. Comfortable ride. Excellent on very rough tracks. Available with seven seats. Good value. Much improved from 2010 with new 2.2-litre diesel.