On Tue Feb-26-2013 08:22, TOM WALKER (1:123/140) wrote to ROGER NELSON:   
      
   RN>I have a friend with a 2002 (or thereabouts) Pontiac,  She is   
   RN>afraid to turn the engine off when she goes anywhere because of the    
   RN>following:   
      
   RN>1. The engine only starts on the 2nd attempt   
   RN>2. When going somewhere, and shutting the engine off, the car has   
   RN>to sit for about 30 minutes before the engine can be restarted.   
      
   RN>This is a new one on me.  We originally thought it might have    
   RN>something to do with the chip in the ignition key, but that didn't    
   RN>solve the problem.   
      
    TW> Sounds  like a classis case of "Heat Soak" to me.either there is a   
    TW> leaky injector or a bac check valve i nthe Fule system that lets   
    TW> the pressure drop off and the engine hear boild the low pressure   
    TW> gasoling causing the equilivent of the old "Vapor lock. SO until   
    TW> the engine cools down it does not recieve enough liquid fuel to   
    TW> start.   
      
   That's another possibility I hadn't considered.   
      
    TW> There is a port o nthe fule system where a pressure gauge can be   
    TW> installed and one can do a leak down test.   
      
   I don't know if that was done.  I'll ask her when she arrives.   
      
    TW> Recomendations vary but the pressure should not leak down faster   
    TW> then 2 PSI per 5 seconds. It typically should be much less than   
    TW> that.   
      
   Thanks.   
      
      
   Regards,   
      
   Roger    
   --- timEd/386 1.10.y2k+   
    * Origin: NCS BBS - Houma, LoUiSiAna - (1:3828/7)