its a 2001 pontiac grand am 3.4L. i have a hard time starting the car when its warm and is also less powerful when warm. my mileage is at about 12-13.. which is horrible. i sometimes hit the gas,, but i dont think anything i do justifies 12-13MPG.... car already had a tune up a couple of months ago. i think it might be a vacuum leak,, but how exactly do i check?
can someone list the whole procedure and signs to look for. I dont hear a hiss when standing still,, but when i was driving near a wall, i heared a broken hiss while i was doing 50mph...
2007-07-06
04:37:18
·
4 answers
·
asked by
Dude
1
in
Maintenance & Repairs