I'd do a tune-up on it. Check for applicable mil codes. Use a gage and check fuel pressure.
You could have an intermittent rpm signal, comes from crank sensor. When the problem occurs, if it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. To check for spark, you can use a known good spark plug or spark tester, don't pull plug from engine. You can carry a spark tester, it won't get hot. If the spark plug wire, where applicable, is hot, use a glove to pull wire loose from spark plug. Stick spark tester in plug boot, ground metal part of tester to metal part of engine, watch for spark, engine cranking.
Sunday, May 29th, 2011 AT 4:00 PM