Engine does not start after fueling
Hi,
I have a weird problem recently with my Mercedes B200 / 2006 – after fueling the tank the engine does not start for 60 min. It cranks but the engine doesn’t start. Also the fuel pump is working one can hear it. After 60 min it is all good the engine start normally and the car is running well until next fueling. No matter how much fuel I add 1 litter or a few drops, regardless how slow I add fuel the result is the same – engine won’t start for 60 minutes. I even tried last night adding fuel while the engine was working and there was no interruption and no problem.
The problem is wh
I have a weird problem recently with my Mercedes B200 / 2006 – after fueling the tank the engine does not start for 60 min. It cranks but the engine doesn’t start. Also the fuel pump is working one can hear it. After 60 min it is all good the engine start normally and the car is running well until next fueling. No matter how much fuel I add 1 litter or a few drops, regardless how slow I add fuel the result is the same – engine won’t start for 60 minutes. I even tried last night adding fuel while the engine was working and there was no interruption and no problem.
The problem is wh
Experienced mechanics share their insights in answering this question :
Hi There,
It sounds like your car’s evaporative emissions system may have some problems. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere as you are fueling your car and while the fuel just sits in the tank. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.
It sounds like your car’s evaporative emissions system may have some problems. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere as you are fueling your car and while the fuel just sits in the tank. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
There are a couple of simple solutions if your check engine light came on after getting gas. A loose gas cap is one of the most common reasons for the check engine light to go on. Check that your gas cap is screwed on securely and that it`s in good condition.
You can help your car start by holding the throttle wide open to get extra air into the engine to get it started, and then letting off the gas once it starts. This is only a way to get it started after refueling until you get the purge valve replaced to fix the problem.
When your engine cranks but won`t start or run, it could mean your engine is having trouble producing a spark, getting fuel, or creating compression. The most common causes are problems in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter).
Bad Sensors
One common culprit for this problem is the crankshaft position sensor, which measures the position and speed of the crankshaft. The computer uses the information from this sensor to know when to fire the spark plugs. If the sensor isn`t working, the spark plugs won`t fire, keeping the engine from starting.
An EVAP trouble code could be caused by something as simple as a loose or worn gas cap, a leak in a hose, problems with a purge valve or even a rusty fuel filler pipe.
Common oxygen sensor fault codes:
P0135: oxygen sensor in front of the catalytic convertor 1, heating circuit / open. P0175: system too rich (bank 2) P0713: fuel trim malfunction (bank 2)
One of the most common causes of a sputtering engine is an issue with the vehicle`s fuel system—the filter, pump, and injectors. These three critical components work together to ensure fuel flows smoothly from the fuel tank to your engine`s fuel injectors, and then pumps into the engine evenly.
Your car won`t start or struggles to run
This is a sign that your gas isn`t burning properly or something is interrupting the fuel`s flow to the combustion chamber. While those are somewhat generic diagnoses, that is basically what`s happened. Most of the most common bad gas situations involve one of these.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Engine does not start after fueling
ANSWER : Hi There,
It sounds like your car’s evaporative emissions system may have some problems. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere as you are fueling your car and while the fuel just sits in the tank. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.
It sounds like your car’s evaporative emissions system may have some problems. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere as you are fueling your car and while the fuel just sits in the tank. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.
Read Full Q/A … : Engine does not start after fueling
Fuel pump engages. Batery good, alternator good volts, jump start helps when wont start. Temp does not matter. Intermittent?
ANSWER : Hello. Thank you for writing in. There are several reasons your vehicle may only start when jump starting. The first and most common is a build up of resistance that is causing you to need a boost of voltage to get the engine started. This may be due to poor battery cables, a bad ground connection, a poor starter solenoid, and a couple of other issues. The first thing you want to do is perform a visual inspection of the starting system. Make sure there is no corrosion build up in the battery cables. You can also check the resistance across these wires and make sure you have a solid connection between components. You then want to make sure the starter solenoid is doing its job. It is responsible for taking the small amount of electricity sent by the ignition and turning it into a huge electrical charge that is strong enough to push over the engine with the help of some gear ratios in its favor. Do some more testing, and stick to the basics before assuming its something seriously complicated.
Read Full Q/A … : Engine does not start after fueling
Engine won’t start and it’s a fuel related problem because I can spray starting fluid in the throttle body and it starts.
ANSWER : It sounds like you may have an air leak present in your EVAP system. When an air leak is present in the EVAP system, the MAP (Manifold Absolute Pressure) sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air, entering the engine correctly. This will lead to an over fueling situation or an under fueling situation depending on the size of the air leak and engine operating speeds and load. This may eventually lead to catalytic converter problems as well as misfiring problems. As you may know, if the MAP sensor is not working properly, depending on the severity of the air leak (and the related adjustments the MAP sensor is making to try and compensate for this), this may in fact cause the motor not to start. I would recommend having an expert from Your Mechanic come to your location to diagnose and inspect your vehicle.
Read Full Q/A … : Engine does not start after fueling
Installed new delphi fuel pump and fram fuel filter. still no pressure on fuel rail valve and wont start. 2003 Chevrolet Tahoe
ANSWER : Hi there – I suspect you have weak power getting to the fuel pump. I would first check the voltage coming out of the fuel pump relay. If the contacts in the relay are burned, you will not get reliable current flow to the pump. Check the fuel pump ground as well (voltage drop across the ground, not just continuity). I recommend a fuel system inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
Read Full Q/A … : Engine does not start after fueling
Car won’t start after sitting for 14 months
ANSWER : Hi there. Check the fuel pump to see if it is energizing, and check the fuel pump relay to see if it is clicking when you turn on the key. If the relay is not clicking, then remove the relay and check to see if there is any power with using a test light. If there is power, then swap the relay out with the horn relay and see if the relay clicks.
If the relay clicks, then the relay went out and needs to be replaced. If the relay still does not click, then check the ground circuit for continuity, which is the feed circuit to the fuel pump. If there is no continuity, then the fuel pump needs to be replaced.
If you need further assistance troubleshooting your vehicle, then seek out a certified technician, such as one from YourMechanic, who can come to your location to determine why the car is not starting and suggest the necessary repairs.
Read Full Q/A … : Engine does not start after fueling
Engine tapping noise related to short term fuel trim but only on cold start up.
ANSWER : Has a mechanic’s stethoscope been used to track down the specific location of the noise? There are several solenoid valves in the engine bay that do not run all the time and may be pretty loud once they start, such as an evaporative emissions purge valve and the like. The high fuel trims on one bank sound like you may have a problem on one side with a vacuum leak. A positive trim means air is being added and the computer is trying to add fuel to compensate.
I recommend having an experienced technician, such as one from YourMechanic, come to your location to determine why the engine is making a noise and suggest the proper repair.
Read Full Q/A … : Engine does not start after fueling
Changed battery and the fuel pump and car still slow to start. When it does start it shuts off without warning. Fuel filter is fine.
ANSWER : Hi there. The battery could be dead even though it has a full charge. There could be a dead cell or an over charged cell. Have the battery checked with a load tester. This will place a load on the battery and the battery is not to drop more than 3 volts during the test. If the battery drops more than 3 volts, then the battery needs replaced. Also, check the starter and ignition system for any faults. Look for corrosion on the ignition wires and see if the cables to the starter are loose. If you need further assistance with your no start situation, then seek out a professional, such as one from Your Mechanic, to help you.
Read Full Q/A … : Engine does not start after fueling
Replaced fuel pump. Car won’t start. 2002 Infinity I35
ANSWER : Hi there – the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel pump to run very long before the engine will start. Having replaced the fuel pump and fuel filter, I would check fuel pressure while the car is running. This is to check the fuel pump relay for burned contacts that won’t support full electrical current to the pump, and for proper fuel pressure – a malfunctioning fuel pressure regulator could also restrict power and higher speeds if pressure is too low. I would recommend an inspection of the fuel system by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
Read Full Q/A … : Engine does not start after fueling
