Question about Mercedes-Benz ML350

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Mercedes ml350 2003 starting problems Vehicle hesitates during startup whether hot or cold

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It happen the same to in my truck it was the starter and alternator

Posted on Jul 11, 2011

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When was last healthy tune up? You didn't mention mileage.... for starters, I would run a good fuel system cleaner through it & change fuel filter. Benz fuel systems & injectors are extremely finicky and don't particularly work well with cheap fuels and certain brands. (see it all the time) Try the above 1st and make sure you use a brand name & good grade fuel.

Posted on Mar 11, 2011

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2000 Dodge RAM 1500 Van, Hesitates and misfires after initial startup


try 0 timing carbon in your pistons can create similar problems,special wen engine is hot.

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Vehicle: 1998 Nissan Pathfinder SE V6 3.3L Problem: Vehicle has been hesitating during acceleration and occassionally stalling. After stopping and restarting, vehicle has been extremely hesitant. The...


Hello,
When the MAF on most vehicles reach a point of preventing the engine from starting, you can usually just unplug it and the engine will start. If that doesn't work-
You may want to try having the O2 sensor, ( Oxygen sensor ), checked. It works with other components of the emission system and can cause similar symptoms as the MAF, including preventing the engine from starting.

Donnie

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2 Answers

Hard starting every morning


really need a little more info. but at first thought sounds like either a cold start sensor if equipped. or a coolant temperature sensor. the cold start sensor squirts fuel directly into the intake upon startup wen the vehicle is cold. the coolant temperature sensor adjust fuel air mixtures based on the temp. of the vehicle. when they go bad they go to default which is usually about 175 degrees. so when the car is cold and the faulty sensor tell the computer that the car is 175 degrees when its not then the computer delivers the wrong fuel air mixture, the mixture as needed when its warm when the car is actually cold and needs a different mixture in order to start more easily.

Aug 07, 2010 | 2002 Mercedes-Benz C-Class

1 Answer

It hesitate to start up in cold weather i have to give a pump of


There is a cold start valve srpay extra fuel at the start to assist the start in the cold weather. If it is not open during the start then this is why there is a problem. This valve is operated by an electric coil. Even checking the resistance reading, but the valve is still not opening due to being stuck. Power is only coming to the valve during the start and the temperature is cold reported by the coolant temperature sensor . If the coolant temperature sensor is bad reporting warm temperature then the valve will not open. The temp sensor is less expensive than the valve, so it is an economical way to tackle the sensor first. Good luck.

Nov 19, 2009 | 1997 Volkswagen Jetta

1 Answer

Intermitant starting problem


Typical symptom of ignition module failing. Gel overheats and causes failure which does not exist upon cold startups and vehicle will restart when cooled off.

Aug 28, 2009 | 1987 Buick LeSabre

1 Answer

XT6 startup problem


idle speed control problems. check fuel pressure. also change air filter.

Mar 23, 2009 | 1999 Kia Sportage

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