Engine Performance problem
1989 Pontiac Sunbird 4 cyl Front Wheel Drive Automatic 65000 miles
I have an 89 pontiac sunbird gt turbo 2.0L
After driving the car around I would stop somewhere and get out. After 5 minutes coming back to the car it would not start. Last year it would do this and I would turn ignition to run to engage pump and back to off. I did this a few times and it would start. Makes me believe it is a pump/fuel filter problem. I havne't replaced them yet, but today even the turning ignition many times before starting and still wouldn't start. Finally after 5 minutes of this it barely started and ran rough for a few seconds while I pumped the gas to get the rpm's up and it drove fine after that.
Have you checked the fuel pump pressure? Has the check engine light come on?
May, 6, 2010 AT 8:11 AM
I got a fuel pressure gauge, the fuel pressure is within range. I checked it last week but dont remember what it said off hand. Like 38 psi or something. It held pressure most of the time. I checked it multiple times. One time I did notice it dropping though. Not sure if its because of vacuum or if its an injector leaking. Leaning more to vacuum since it only does it 1/10 times. A leaking injector should do it every time I would think. Guess I will have to pull some plugs and see if they look bad. I only drive the car about 1000 miles at most a year so the plugs should look good as they were replaced a few years ago. The check engive light does come on after 30 seconds or so. I notice the fan kicks on then the light. I will take it in to see what light says.