Fuel smell from the vehicle.
Loose filler cap on diesel tank cause.
Another symptom of an issue with the fuel cap is a fuel smell from the vehicle.
This will cause a decrease in your fuel economy.
A blown head gasket bad intake manifold gasket v8 engines a cracked block or a cracked cylinder head may cause coolant to mix with engine oil.
It can make the roads slippery for other road users c.
What problems can a loose gas cap cause.
Increase the level of exhaust emmissions.
If the gas cap is loose it could cost you up to 30 extra gallons of gas in a year.
Waste fuel and money b.
Or cause roads to be slippery for other motorists.
If when tightening the cap it does not eventually click or pops loose after it clicks then that is a sign that the cap may be damaged and need to be replaced.
If the gas cap leaks or fails to provide a proper seal it can cause fuel vapors to escape from the fuel tank which may cause the vehicle to give off a fuel smell.
Or decrease fuel consumption of your vehicle.
Remove the oil filler cap from the valve cover and look through the filler hole.
This will mark two answers a.
Diesel fuel can spill out if your filler cap isn t secured properly.
If the gas cap is missing altogether you are at risk of catching your car o n fire each time you drive.
Increase exhaust emissions from your vehicle.
A gas cap that is not sealed correctly may cause an engine leak.
Make roads slippery for other road users c.
You have a loose filler cap on your diesel fuel tank.
At the end of a dry spell of weather the road surfaces ma.
A loose filler cap on your diesel fuel tank may.
It can make the engine difficult to start b.
And possible answers include.
Improve you vehicles fuel consumption d.
Or improve your vehicle s fuel economy.
It can improve your vehicle s fuel consumption d.
This is most likely to occur on bends junctions and roundabouts where it will make the road slippery especially if it s wet.
This is particularly dangerous in wet conditions although a huge amount of traction is also lost in drier conditions.
Always make sure your filler cap is sealed tightly as a loose or faulty fuel cap may often cause a vehicle s check engine light to come on.
Driving test question about.
Inside the fuel tank there is a sending unit which tells the fuel gauge how much fuel is in the tank thereby ensuring that you know when your vehicle is low on fuel.
You may need a flashlight to examine inside the valve cover or maybe remove the cover itself.
A loose filler cap on a diesel fuel tank can cause the road to become slippery for other road users.
From uk driving theory testcars and small vehicles.