27
votes
Accepted
What causes a 20% difference in fuel economy between winter and summer?
Your fuel economy change is caused by the fact you're not using the same fuel. Fuel changes twice per year from summer blend to winter blend and back again causing a change in the Reid Vapor Pressure (...
- 1,533
17
votes
Accepted
Replacement ford fiesta radiator has extra hose
What you've been sent is the radiator for the diesel variant - as opposed to what appears to be the 1.25l Zetec petrol engine in your first diagram.
You're correct in that the "main" radiator ...
- 9,989
11
votes
Accepted
How do old cars actually lose horsepower?
It depends on a ton of things and it won't be linear in most cases. Every car has different things that wear out at different rates and those things affect horsepower differently as they age. Not ...
- 1,935
6
votes
Ford Fiesta Mk6 heater blower fan motor resistor location?
Hopefully not a bad assumption, but I'm assuming you're vehicle is right hand drive (European). That said, to get to your resistor pack, there is a kick panel which has to be removed which is against ...
- 153k
4
votes
Oil leak: any idea of the likely source?
You have to clean the engine bay first
When troubleshooting for the source of an oil look you first have to completely clean off all of the old oil, dirt and built up grime.
You can get a citrus ...
- 33k
4
votes
Accepted
2012 Ford Fiesta S speedometer calibration
UK type approval states that a speedometer may read with upto a 10% error provided that the speed shown is either true or over. A speedometer may not under read when a car is new. Most manufacturers ...
- 23.5k
4
votes
What causes a 20% difference in fuel economy between winter and summer?
Another reason: Winter tires. Choose between hard tires (good fuel economy, REALLY bad on snow) or soft tires (worse fuel economy, good on snow).
- 145
4
votes
What causes a 20% difference in fuel economy between winter and summer?
Your vehicle does not operate at maximum efficiency until the engine has reached its normal operating temperature. This is generally when the coolant temperature reaches about 200 degrees Fahrenheit. ...
4
votes
2012 Ford Fiesta - New Engine, Harness, Sensors, and PCM - Still Crank, No Start
P0340 is certainly a reason why the vehicle isn't starting but it indicates an issue with the camshaft position sensor rather than the crank.
You really need to check the output of the camshaft ...
- 2,781
4
votes
Original Ecu swap back into my car with correct VIN
The locksmith didn't actually program your keys since keys are stored in the body control module on this model. The programming that needed to be done is called "Parameter reset". This ...
- 3,790
4
votes
Engine exchange using non-turbo for turbo version
Both your 1.0L EcoBoost engine and the 1.6L naturally aspirated engine are part of the Sigma family of engines. Therefore the bolt pattern for the transmission should be the same and the 1.6L engine ...
- 153k
3
votes
Accepted
What "type" of engine does a Ford Fiesta, 2008, style climate D, 1.4 TDCi have?
It's a little unclear what you're asking for, but your car has this engine: Ford DLD. It is a inline, 4 cylinder Diesel engine with a turbocharger, but it most likely doesn't have an intercooler. ...
- 13.3k
3
votes
What causes a 20% difference in fuel economy between winter and summer?
In the winter the ambient air is much colder, making the air more dense.
Denser air will contain more oxygen and so the car will inject more fuel in order to maintain the correct ratios. This effect ...
- 159
3
votes
Waterbottle cap still poping off
Maybe cap or reservoir has fractures inside and you don't notice it. When the pressure increases (which is normal) damaged teeth can't withstand that load. Try to change your water reservoir and it's ...
- 31
3
votes
Accepted
1997 Ford Fiesta Strange Ticking Noise
tl dr: There is almost no way to tell from the video what is causing the noise.
From the video it sounds like an exhaust leak causing the tick ... but smartphone video is notorious for not giving an ...
- 153k
3
votes
Diesel engine suddenly doesn't start and returns to normal without aparent reason
It's very possible that you have a problem in the glow-plugs of your diesel engine. Glow-plugs are used to preheat the combustion chamber on a cold engine. If you're having problems starting the car ...
- 101
3
votes
Ford Fiesta zetec 2014
Absolutely normal. When you take your foot off the brake, the front brakes are release which puts all of the stopping power to the rear brakes where the hand brake (E-brake) is applied. Once this ...
- 153k
3
votes
Will replacing the clutch/brake fluid make the clutch pedal smoother? It's a little uncomfortable to operate
The theory behind the fluid change is that as hydraulic fluid ages, is exposed to heat and moisture it becomes more viscous, i.e. thicker. Thicker fluid takes more effort to pump, changing the fluid ...
- 16.2k
3
votes
Accepted
Red 2014 Ford Fiesta clear paint coat starting to peel
The clearcoat in the image is peeling for one of two (or both) reasons. It has either lost its mechanical or chemical adhesion to the base coat. Unfortunately, once the peel has started, there's not ...
- 153k
2
votes
I have a 2001 ford fiesta that when I brake the steering wheel vibrates up and down not side ways
I've experienced this on a Ford Escort RS Turbo and the source of the vibration was traced to a warped brake disc.
This was exacerbated on this particular car as the wheel design meant one side of he ...
- 23.5k
2
votes
Ford Fiesta Mk6 heater blower fan motor resistor location?
here is a clear picture underthe dash of a right hand drive fiesta. it may be the same for older fiestas but this one is a 2011
2
votes
Ford Fiesta 2001 1.25 engine issue
Try this:
Turn off the engine and close all the doors
Turn the key to electrical systems on (Position II)
Hold down the gas pedal and brake pedal simultaneously for over 20 seconds
This is, at least ...
- 5,245
2
votes
Ford Fiesta 2001 1.25 engine issue
Disconnecting the battery of the vehicle will erase any stored engine codes (remove positive and negative cables and then wait for 15 minutes for residual charge to empty), but I would recommend ...
- 1,958
2
votes
What causes a 20% difference in fuel economy between winter and summer?
Presumably in winter you'll have lots of additional systems switched on such as the heating, demisters, headlights, etc...
All of these things sap your fuel consumption.
- 23.5k
2
votes
2012 Ford Fiesta - New Engine, Harness, Sensors, and PCM - Still Crank, No Start
After having to remove the gearbox twice, I can now answer this. I'm not sure if your problem was resolved or not, but for any other people that have the same issue, car will crank for half a second ...
2
votes
Engine gradually loses power while driving highway speeds
I've experienced this once before on a Lancia Y10. The fuel breather was blocked so as the fuel level decreased, a vacuum would form above the fuel in the tank and eventually this would overcome the ...
- 23.5k
2
votes
Clutch Fault, Ford Fiesta ST 16 Plate
I agree that a 1 year old car with 11k miles should NOT have issues like that.
That said, there are a few things you should do.
Check the warranty paperwork that should have come with your car. ...
- 3,284
2
votes
Ford fiesta diesel brake pedal hard
If the pedal is so hard that it has little effect on the brakes it is most likely a vacuum issue.
On diesels there is a separate vacuum pump connected to the brake servo via a pipe. Check the pipe ...
- 2,781
2
votes
UK - Fiesta 2001 1.25 P0302 Cylinder 2 Misfire Detected
If you have a coil on setup or even a coil over (both with individual coils per cylinder), change out the #2 cylinder coil with a different coil ... doesn't matter which one. If the misfire follows ...
- 153k
2
votes
No voltage on injector lines following engine rebuild
Based on you update, it sounds like you have a fuel delivery problem. You were right to check in your fuel tank, but you should find your fuel pump in there. Usually the sender unit and pump are built ...
- 172
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