2004 Mondeo overfuelling / poor MPG
Discussion
I was wondering if anyone had an idea on this fault.
I've an ancient Mk3 Mondeo TDCI that isn't worth much now but comes in handy for lugging things about.
The power steering belt snapped, I only had about 3 miles to go so drove it without the belt.
It got hot and just before I pulled up it started to lose power.
Replaced the PS pump (solid) and the belt, however the car ran like crap.
Gave it a service, changed the oil, filter, air filter, fuel filter, spotted a hole in the exhaust and a hose that had split, fixed all those and the car ran OK, however I only get about 32MPG at best, always got the high 40's before.
Put a scanner on it, had codes for high pressure on the injectors and a MAF fault, the latter wouldn't clear. Replaced the MAF and have no codes now. I had a garage check the injectors they say everything is OK there, there's no misfire or leaks. The car runs OK, power down a little bit but nothing huge, the exhaust is normal, idle is fine, not hunting or lumpy, notice a bit more crap that usual if I'm accelerating up a hill but it's not thick white smoke or the death that you get when the turbo dies. Despite it's 140,000 miles it drives well, probably going to bin it for a newer one but I'd like to get to the bottom of this issue first as it's curious. All started after the belt issue so I'm assuming it's due to the high temp, what's curious is that before the temperature gauge would take an age to come up to the middle, but now it's there after 5 minutes, other than that everything other than the poor MPG seems normal.
I'm not hugely clued up on diesel engines but was hoping someone might have an idea of where to look next, I suspect it's a turbo issue as although it's clearly working it's noisy when pulling up a hill (sounds a bit like a blowing exhaust). If it is that I guess it's not worth fixing, hoping for an alternative hypothesis.
Thanks in advance
I've an ancient Mk3 Mondeo TDCI that isn't worth much now but comes in handy for lugging things about.
The power steering belt snapped, I only had about 3 miles to go so drove it without the belt.
It got hot and just before I pulled up it started to lose power.
Replaced the PS pump (solid) and the belt, however the car ran like crap.
Gave it a service, changed the oil, filter, air filter, fuel filter, spotted a hole in the exhaust and a hose that had split, fixed all those and the car ran OK, however I only get about 32MPG at best, always got the high 40's before.
Put a scanner on it, had codes for high pressure on the injectors and a MAF fault, the latter wouldn't clear. Replaced the MAF and have no codes now. I had a garage check the injectors they say everything is OK there, there's no misfire or leaks. The car runs OK, power down a little bit but nothing huge, the exhaust is normal, idle is fine, not hunting or lumpy, notice a bit more crap that usual if I'm accelerating up a hill but it's not thick white smoke or the death that you get when the turbo dies. Despite it's 140,000 miles it drives well, probably going to bin it for a newer one but I'd like to get to the bottom of this issue first as it's curious. All started after the belt issue so I'm assuming it's due to the high temp, what's curious is that before the temperature gauge would take an age to come up to the middle, but now it's there after 5 minutes, other than that everything other than the poor MPG seems normal.
I'm not hugely clued up on diesel engines but was hoping someone might have an idea of where to look next, I suspect it's a turbo issue as although it's clearly working it's noisy when pulling up a hill (sounds a bit like a blowing exhaust). If it is that I guess it's not worth fixing, hoping for an alternative hypothesis.
Thanks in advance
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