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I asked a question about a week ago , what would make the engine run ruff after getting to standard temp and now it dies at stop signs , and is getting worse , it runs perfect when cold

It just got a complete tune up new ignition coil , plugs , wires, cap , rotor,

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Good evening Vernon. You placed your problem with your car,but you did not mention the make and type of your car. Your Engine runs perfect when is cold because it is running in a rich mixture and has high revs, but when it comes to standard temperature is working ruff,because the engine turns to the correct mixture for running,but as the engine suffers from air works like suffocating ( needs Oxygen. Now the problem is probably either a cracked vacuum hose somewhere by the inlet manifold, by the throttle body, the purge canister is not working properly, the throttle body does not working as it is programmed to do so. As I do not know the make of the car I will not be much helpful, but what I state is some of the basic procedures I personally follow in My Garage. Also if you do have any type of scanner will be handy. The Question I have is: Does your car have a catalytic converter ? If yes check also the if the catalytic converter is working. To see whether it does,the easy way to check is to check through the Gas Analyzer your emissions , or if you do not have any check whilst accelerating if the exhaust end has loud outcome emissions ( air ) and you can notice it if you put your hand in a short distance from the exhaust whilst somebody accelerates and if is pushing strongly the hand means that the cat is open,unless you do have a smell as a rotten egg, surely the cat is blogged.Hope I am helpful. Good luck.

Posted on Apr 16, 2015


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