hello i've got a routine fuel-injected car, a 2004 nissan sentra.
it usually has the trouble-free starting -- you turn the key, no accelerator pumping, in fact the manual tells you NOT to pump.
however, i found as hot weather encroached these last 2 years, that if i leave the car out where it's hot, then it becomes hard to start. in fact, i have to pump the accelerator as if i still had a carburetor.
is there a reason in hot weather for starting to be difficult, and if so, a remedy? thanks.