Take top off of carb - 1986 Chevrolet S-10 Blazer

you might try tapping on the top of the carb as it sounds like the float is stuck or run some gum out through the carb and it might remove the varnish in the carb. If not you will need to remove it and rebuild the carb.

Hi Holly:
- Remove air filter from top of carb.
- Look down at top of carb
- 2 holes (2 barrel)
- 4 holes (4 barrel)

in the carb there is a needlejet and float that regulates the amount of fuel in the chamber of the carb ,,, the jet could be stuck ... or also there is a main jet that feeds fuel into the manifold fromthe carb ,,, this could be blocked ,,,, you will have to remove top of carb to check these ,,,,dont open unless u have some mechanical experience because they can be complicated ,,,, if the truck is not in use that much or not used for long periods the needlejet could be stuck shut ,,,, a firm tap on the cover near the fuel feed can sometimes free it,,, and i domt mean to hammer it !!!

is the diaphram in the accellerator pump damaged from bad install?

Fuel injected or carburetor? If it has a carb check the idle circuit! Also look down the top of carb with air filter off and make sure fuel is not dripping down the inside venturies. Take some carb cleaner an check for a lean mixture at idle and also use the carb cleaner to check for vacuum leaks around base of carb.

Check your float settings. Sounds like the float is stuck in up position shutting off fuel to jets.

could be picking up rust in fuel tank and blocking pick up, when it stops rust drops of pick up.

Any auto parts store can get the kit for you. The carb should have a metal service tag attached to one of the screws on top or side. You'll need the numbers on this tag to get the correct carb kit. If no tag is found then look for numbers either stamped or cast into carb, probably on bowl or on top.

Sounds like the float has absorbed gasoline and can't ftoat anymore. This causes the fuel to not be shut off when float bowl is full causing the carb to flood. You will have to buy a carb kit and a float and rebuild the carb. Hope this helps.

Did the carb kit come with a new float? It sounds like the float level is not set right, it has a hole in it or the needle is not seating right. If the float is not set correctly it will hit on the carb body before it shuts off the fuel flow with the needle and seat. If the float has a hole in it it will fill with fuel and not float at the proper angle to shut the fuel off when the desired level is reached. Remove the top of the carb and inspect the float when closed it should be just about level with the top plate from the carb. Shake the float and see if you hear any liquid in the float. Also are you running a mechanical or electric pump? Mike
P.S. I myself have forgotten to install the needle in a carb rebuild.

Let me know how you make out.