The problem is intermittent with an intermittent "Check Engine" light.
I'm not sure if the two are synchronous-- meaning the problems occurs when the light is on/off.
The problem started as the weather turned colder.
I'm wondering if any sensors are failing or vacuum line problems might exist.
Thanks.
Sell it for scrap.
Shoot the poor thing and put it out of it's misery
If A Bert is sober he can help.
Many auto parts stores will read the computer on your car for free and then give you recommendations for what parts to replace and such.
How many pickups are there in the tank, and do they have filter screens over them? I had another car that would behave like this, but only when quite low on fuel.
The problem started as it left the assembly line.
Honestly, you need access to the codes, so you will likely need an honest mechanic to give you an hones quote and THEN you make the call on whether you are getting close to being upside down.
If it acts poorly once the car is warmed up and the intake air is reasonably warm I would check all the hoses, though, cold snaps on rubber that old cause them to crack and you REALLY have to look closely to see some cracks.
go to google, use 'google groups' (formerly deja news).
type in the basic symptoms and the model of your car and you'll likely find many posts with the same problem.
There is a computer operated solenoid on top of the carb. First, read the codes, the solenoid is expensive, 100 bucks or so, also the charcoal canister can go bad, leaking pellets into the bowl and blocking the jets, . If the carb is worn anyway, throttle shafts wiggly, I'd stick a Holley on it. Make sure that your spark advance modual is working as the sudden retardation of timing can feel just like starvation. Go to Yahoo groups and search for GM, you'll find other chevy owners there. Cars are a PITA
If you are worried about fuel pickup problems out of the tank with some relative creativity you can sort that out with a small gas can and the right length hose to the low side of your gas pump just to check if that works DONT DRIVE AROUND LIKE THAT FROM NOW ON. I would never do such a thing in an old car like a 1964 dart I had once.
Sensors or vacuum lines will cause the engine light to come on. As you know, the sensors are emissions-related. I'm not sure whether a gas flow problem would cause the light to come on.
Are you sure it is a gas flow type problem and not a catalytic converter problem? A clogged converter will result in tremendous loss of power where you can stomp on the gas, but the vehicle won't move the way it should.
Typical Chilton's instructions:
Engine Overhaul Procedure
You have one of 3 problems. May I sugest the k.i.s.s. [keep it simple stupid] principal. Start with most inexpensive part, maybe the fuel filter, then check the fuel pump [if electric check the voltage to anf from it, if mechanical check the output flow from it] then worst case option the fuel injectors are clogged and need to be cleaned. This means that they need to be removed to have cleaned. I might suggest a good auto repair shop for this as the clearences for these may be very close, and to be fixed by a trained mechanic.
Remove the bananas from the gas tank and add some gasoline..
Good Luck
Try replacing the O2 sensor. Bad O2 sensor will cause the car to act sluggist or like it is lugging and will also key the check engine light.
Sounds like you may have a faulty or clogged inline fuel filter.
"All-Data" . often available at libraries on cd rom.
If replacing the fuel filter didn't fix it, you have an intermittent problem with the fuel pump, presumably electric.
Replace that.
Don't worry about the O2 sensor - yours probably gave up long ago, and in any case won't give symptoms like yours.
Ah, one other thing: make sure your fuel tank vent is working properly, letting air in to replace fuel removed. If not you could be drawing a vacuum, preventing fuel from leaving!
A little more info might help:
Does act like this at high speeds?
At idle?
Upon acceleration?
All the time?
When you reach a a certain RPM?
There are different reasons for each incident.