High fuel consumption/ strong smell of fuel

Tuning and setting of air and fuel ratio are crucial to mileage. Another thing is brake adjustments. If brakes are partially getting applied due to faulty adjustments even if you have not applied it, then it could be a reason for high fuel consumption.

There are many reasons for high fuel use, low tyre air pressure is one of the most common, clogged air filter, oxygen sensors not working are just a few.

there is a 4-5 inch fuel return hose coming off the fuel rail. Usually most technicians do not see the fuel leak because it is slight and it evaporates fast. it is also close to the cold air intake for the heater(cowl) making the fuel smell inside the vehicle strong. the hose when removed will be dryrotted and hard. the hose costs under 10 dollars and a half hour to an hour labor is needed. it comes directly off the fuel pressure regulator

High on mileage means that the engine has done a lot of work, possible that the compression is down, need to check if this is below level, if there is oil used in excess then the engine needs an overhauling subject to the cost estimated.

Cant compromise on bad fuel as this will bring down the power of the engine.
High fule consumption means poor setting so fuel and ignition , check fuel settings- pump calibration and timing.

YOU HAVE A AIR LEAK IN THE TURBO SYSTEM CK HOSE'S MY 2006 3500 SPLIT THE HOSE HIGH WHISTLING SOUND. LOW POWER / AND LIMP MODES TOO. ORDER THIS AND BINGO IF FIX IT . YES THE OLD TURBO RESONATOR HAD SPLIT TOO. I did not use the o-ring from the old part I found one 1 side down that fit tight around the new part. A loose o-ring is going to weak air too. Got mine on ebay.


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try the air filter first and the intake.the spark plugs then and after all go to a garage for checking compression timing and the head gasket.

Hi,
This sounds like a problem with the "Emissions control system"
Designed to absorb fuel vapours - and release them when engine running, When they go wrong it leads to excessive fuel consumption, fuel smells and possibly leaks.

It is most likely a split pipe along this system - which needs checking carefully to find out where exactly.
Overfilling of your tank can lead to pressure problems - popping off a hose, so if you remember doing this - check any carbon filter element and hoses around it.

Replace the air flow meter.That will cause you to use a lot of fuel.

50 miles reduction in the conditions mentioned means that your economy is about right
there is a small hose back from the tank to under the cap to release air trapped when filling
koses can get loose , crack or break
tank sender units gaskets can break down
look around the tank area for the leak /smell
a damp patch in the dust is a good give away

If the hose he used wasn't made to hold gas, it is going to melt. If he crimped it to make it fit and the fuel pressure is too great, it may split. You should get the factory part, if it is a shaped hose, not a straight section that can be clamped into the system. As for where the fuel may go, you need to look at the area under the hose that split to see if there are stains that still smell strong from the gas that collected on that area.