Intermittent issues can be a pain. YOU have to do testing when the problem is ongoing. I can help with some testing, but, you have to do the testing.
When the problem occurs, if it cranks good but won't start, have a helper crank it, while you visually check for spark at the spark plugs. If you have spark everywhere, use a gage and check for proper fuel pressure.
Your mechanic is correct, if the vehicle is running ok when he checks it and no trouble codes. Then, he probably won't be able to find anything.
My first thought on something like this, when the problem is ongoing, is there an rpm signal?
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Monday, March 31st, 2014 AT 2:05 PM