I have an 06 Chevy Malibu LS with the 3.5, the car has no check engine lights whatsoever but has an issue where it will start only with throttle.
it starts just fine in the mornings, no
throttle needed but come lunch time
or if I go somewhere and shut the car
off, I won't start unless i I give it
some throttle. The fuel pump is
good, has strong pressure with no
loss of pressure. New crank and can
sensors, we have hooked it up to a
scanner but the scanner doesn't
show anything wrong.
Have throttle body cleaned and replace fuel filter if have not done so in a while.
It is a non serviceable fuel filter, but I will try to clean throttle body
Also add some Lucas Fuel Injector Cleaner to gas tank.
have you done a tune up or checked you air filter
No engine light you may have a slight vacuum leak or tps is slightly worn out
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