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Username Post: 1985 2.8 S10 problems        (Topic#328765)
Jerryk89 
Forum Newbie
Posts: 3

Reg: 09-20-15
09-20-15 04:08 PM - Post#2576935    

I have a 85' 2.8 6 Cylinder Automatic S10 I've been working on for over 6 months. I bought the truck and everything ran fine. From time to time it would spit and sputter, but I could rev it up and it would return to normal. It's always had a problem with a cold start, but I've found that normal on these old trucks.

Anyways, decided it was time for a tune up. Bought a new Distributor Cap, Rotor, Plugs, Plug Wires, replaced old cracked Vacuum lines. None of this seemed to fix the problem with the truck and it eventually got worse.

Problem eventually got so bad the truck would stall when accelarating or under load. It would basically die 10-15 times during a 30 minute trip down the road. Figured it was time for some more tuneups so I bought a new distributor, installed it (made sure the #1 piston was at TDC and lined up my rotor with it to stay in time)then, pulled the old Rochester carb off it and replaced it with a (2014 rebuilt) Rochester carb (same model on truck), then replaced Fuel Pump, a few old fuel lines, valve cover gaskets and the ignition coil.



But, here's the problem now, I'm getting plenty of gas at the fuel line at the back of the carb. But, for some reason that's as far as it's getting. I can hit the accelerator on the side of the carb and no gas is making it inside the carb itself. It's like it's stuck at the filter (it's inside the carb just where the fuel line connects) which i've checked and is in good shape. I bought and replaced the fuel filter to even check to make sure it was in adequate shape.

I can take starting fluid and spray inside the carb and the truck will start and run until it burns up the starting fluid.

Someome please have some information they can share! I've worked on this thing til I'm getting aggravated with it. Was a good truck, but now I feel I'm

Edit: (Went out just now, didn't spray any starting fluid. Turned the ignition, and the truck started. I rev'd it up for a second, hoping to blow a clog or etc loose from the Carb and after about 30 seconds it died and will no longer start again. (But, it will start if i spray starting fluid inside the carb).



Edited by Jerryk89 on 09-20-15 04:19 PM. Reason for edit: No reason given.

 




Stinky 
Senior Member
Posts: 1651

Loc: Whitewater, CO
Reg: 05-25-01
09-30-15 05:20 AM - Post#2579138    
    In response to Jerryk89

It sounds like it is fuel related...

When you pump the gas, does it squirt gas in to the bores? That would indicate whether or not there is gas in the carb.

If you think that it doesn't have gas, you might try, pouring gas in to the carbs vent.

If you can start it... and turn the throttle all the way open, rev it up and put your hand over the carb intake. Keep the throttle open and choke it w/your hand, it will die...until you remove your hand and then rev like crazy, do this back and forth a few times. This will maybe make it suck any obstructions out of a jet.

I've seen this done several times, w/good results, on cars that were spitting and sputtering, for lack of gas.

But, it sounds like you need a weber...assuming that you live in an area w/o smog checks.



 




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