1999 Cadillac SLS Difficulty restarting

1999 CADILLAC SLS
62,000 MILES • V8 • FWD • AUTOMATIC
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LPARRISH
  • MEMBER
  • 1 POST
Car starts fine when cold. After driving and warm up restarting is very difficult. Engine spins but does not start for 5 - 10 seconds. One or two pumps of accelerator produces exterior gasoline smell but seems to help restart. Thank You.
Sep 19, 2009 at 10:09 AM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
Pumping the accelerator on an injected vehicle does nothing but open the throttle plate. If you are smelling raw fuel, check for a leaking fuel pressure regulator by removing the source vacuum line at the regulator. if there is raw fuel, it needs replaced. It would contribute to your hard start by adding excess liquid fuel into the intake system through the vacuum line.
Sep 21, 2009 at 11:09 PM
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