Question about Cars & Trucks
I have problems starting the car....but will usually start when hasnt been used for a while..iv had new battery, timing done,crankshaft sensor, mpg sensor.....im at my ends wit with it!! when it goes its like a rocket like nothings wrong with it....but after 10mins being left after driven the whole engine moves and it back fires if i try and give it gas while starting but does eventually start!!
Could be the camshaft position sensor. It works with the crankshaft sensor to set timing. You can remove it and clean off the flat tip. I have seen metal filings on them that causes timing problems.
Posted on Jan 02, 2014
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Posted on Jan 02, 2017
SOURCE: BMW X5 2000 problem
There can be many causes for the car not starting. Generally it is usually a fuel or a distribution problem. Many fuel problems of this kind are related to electronic injection and ECU. This kind of troubles often need special equipment, and can be fixed only at a well equipped garage, where they can test fuel flow pressure and volume in monitoring ECU feedback at the same time.
Simple things you can do are
Checking and eventually replacing fuel filter.
Checking and eventually replacing air filter.
Check that there is no oil on top of new spark plugs.
In last case try to listen if car is running on three cylinders, this can leave uncombusted oil on cylinder, and mean there are troubles with distribution or camshaft.
It is useless replacing one of the sensors without testing them, and when a sensor is gone you usually get some additional light on your instrument panel. At a garage they will connect straight to the computer and get an error message in return, in case one of the sensors is bad.
Posted on Jul 23, 2008
If you drive your car more likely for short distances then engine will not get hot enough to start the regenerating process to clean the cloged particulate filter resulting in a antipollution fault.
Drive your car to a motorway or empty dual carriage way (best in nights). The temperature meter should be showing above 60°C when you begin with this process. Place 3rd gear and drive your car at 3000-3500 rev /min for 15 to 20 minutes to let the ecu to kick the regeneration process. Keep driving car for 15 minutes in this state will be enough to clean your catalytic converter and your problem will be solved. But if it doesn't then the problem is with your catalytic converter and more probabily you need to change it.
Posted on Feb 10, 2010
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