need help quick

[82 EL CO]

when driving my 82 elco it does fine in town but when i get out on the freeway it cuts out, wont shift out of second, backfires, sounds like it isnt getting any gas and runs flat out horrible. does any one kno what this could be ? my other car is in the shop so i need this so can any one help me ? thanks

 

[megaladon6]

if you tromp on it will it crap out or do you have to be at speed?

 

[82 EL CO]

if i stomp on it i does it only at high speeds and when its cold but just givin a little gas it does all that stuff too

 

[megaladon6]

i'm not 100% sure but it sounds like a fuel delivery problem, possibly a lack of ignition advance. detach the fuel line at the carb and put a hose over it and run it to a clear container. crank the car over for 30 or 60 sec and measure the amount of fuel. i believe you want 100-130 gallons per hour. if you have a fuel pressure gauge you want 6psi. also check the distributor advance mechanism and make sure it can move.

just thought of this: check for a bad vacuum line to the distributor or other bad vac lines.

 

[jonessmc87]

when i had the original 305 in my monte, the fuel filter on the quadrajet swelled up and kinda folded in on itself, and blocked fuel, and it kinda had the same symptoms as you're describing. just a thought

 

[beeterolds]

almost sounds like your choke is staying shut... first things first...check your fuel filter...check your choke...make sure it works... make sure your EGR valve isnt sticking open...ive seen it...then check the next best thing. plugs and wires... then look under the dist. cap...make sure the rotor is not roached....and the cap is cracked and fried..

im willing to bet its a simple issue...

 

[82 EL CO]

it has a brand new fuel filter in the carb if i have a rubber fuel line from the pump to the carb would that cause it?

 

[KMac]

I'm not too sure on the rubber fueld line, but is your in-line fuel filter good? Thats a big thing many people overlook and its a quick fix

 

[SBCMALIBUMAN]

Possibly flat cam or bad fuel pump? IDK

 

[85 Cutlass Brougham]

If all of that fails, you may have a clogged "sock" on the end of the fuel tank's pickup tube. This is rare, but it can happen if you get a load of bad gas or have rust and scale on the inside of the tank. This is most prevalent on cars that have sat for long periods of time (think years) without any use and are then reanimated.