Sometimes my car (1999 Subaru Impreza) will not start when it is sitting out in the hot sun. It usually starts on the second try, then runs really rough for a few seconds and then runs perfectly fine. It seriously only does this when it has been sitting for several hours in direct sunlight and it is hot outside (80-90 degrees).
2007-03-22 12:08:49 · 3 answers · asked by Tin Can 2 in Cars & Transportation ➔ Maintenance & Repairs
It sounds to me like the fuel in the injectors/fuel rail is evaporating(wont start 1st time). The the fuel pump pressurizes the system,but there is air in the line(runs rough for a few seconds),then clears up and runs fine. I would have some one look at the fuel pump and the fuel pressure regulator.
2007-03-22 12:18:43 · answer #1 · answered by david b 4 · 0⤊ 0⤋
It sounds like the fuel pump may be loosing its prime.Try cycling the key from the off position , to just before it cranks the engine!Do this 3 times and then start the car,if it starts fine,iwould suspect fuel pump,pressure regulator, or filter.
2007-03-22 12:19:23 · answer #2 · answered by scott h 3 · 0⤊ 0⤋
Vapor lock??? Just for fun. Take some aluminum foil and wrap it around your fuel line as much as you can. This will be a heat sink and will take some of the heat away. See if that does anything.
2007-03-22 12:13:39 · answer #3 · answered by Fordman 7 · 0⤊ 0⤋