I need some ideas with intermittant starting problems. The car starts great for several days without incident and then one time it will turnover fine but nothing. I turn the key numerous times and nothing except turnover of the engine, no coughing. Then it will cough two or three times only but not start. If I let it sit for fifteen minutes or so, it will starts right up. I just had my 120 mile full service one month ago. New plugs, wires etc. The car runs fine but has started this intermittant starting issue. I've almost had to tow it twice and then it started. Seems to do thisore when the weather is hot or when the engine has been running. Starts fine in the morning. Every time I take it to the volvo mechanic is starts fine. Is this an electronic ignition issue. My volvo mechanic and I don't want to replace thing needlessly. Any thoughts?