[mikek847]

I do not know if it is related to engine running rough but when the engine is hot, not just hot but in normal nunning temperture for more than 3 hours or so and when I am stuck in traffic jam in hot summer day, engine knocks and loses power drastically. Engine knocks whenever an accelerator is pressed and engine temperature rises (not to the dangerous level but higher then normal). But then when the stop & go traffic is freed, the problem goes away. Do you think this is related to ignition problem?
Thanks for your input.