Car runs and drive great, but sometimes it does not start either hot or cold. I replaced the main relay switch and still did not fix the issue. Sometimes it take about 5 to 10 min to get the car started and it's trying to start but not sure what to do. Car just had a complete tune up and change the timing belt. What do I need to do to get this resolved.

Thanks

 

When it does not start does it crank? if not check the signel wire at the starter If it does crank check for power at the ing. switch it may be a bad switch elec. part can be changed in the car BUT IT MUST BE CHECKED FIRST!