- Temperature sensor (wrong signal will cause ECM to add too much fuel when engine is warm, causing long cranking time before engine will start)
- EVAP Purge Valve (when they stick open, they allow gasoline fumes to enter the intake manifold, causing a rich condition and long cranking time before
the engine will start)
- Possible fuel pressure problem (when shut off, loses pressure which results in vapor lock and long cranking on a warm hot engine).
Check if any fault codes are stored in the ECM. That might help the diagnosis.
Saturday, November 10th, 2012 AT 8:36 PM