Question about BMW 7 Series
Won't start when warm
Posted by Anonymous on
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Posted on Jan 02, 2017
Once you have the car started do you get rough idling or the needle of the tachometer does not stay in one spot? You may need to inspect the Idle Air Control valve if that is the case. It may need cleaning or you may have to replace it. It is located at the intake manifold.
Below is a sample picture but the prices vary.
I would recommend to have a scanner connected to the car to check if there are error saved in the computer. Some shops would let you borrow them. You may also inspect the engine for loose vacuum hoses and wires.
Posted on Jul 18, 2011
As with any no start issue you will need to figure out if you are dealing with a no spark or no fuel problem to proceed. Check the plugs for spark and the fuel pressure the next time it will not start.
Could be a faulty relay, ignition module, coil or other electrical component.
Let us know what you find.
Posted on Aug 13, 2012
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