View Single Post
Old 06-01-2021, 02:50 PM   #19
Captain J
Registered User
 
Join Date: Nov 2017
Location: H, Q
Posts: 180
Re: Rochester QuadraJet 4bbl Carburetor issue

Quote:
Originally Posted by geezer#99 View Post
The black cap on the side of the carb should have 3 screws on it. Loosen them and rotate the cap counter clockwise. Hold the throttle open and the choke blade should close. Turn it until it just closes then tighten the screws.
That should help starting.
I’d do that first.
If it helps the no start situation then you know the well are good.
Updates

The fuel pump works,
The fuel filter is correct

I turned the choke cap to the left, it only turned less than 1/4 turn.
Truck started but with stuck full throttle, I shut down.
I checked the throttle cables they’re ok, throttle moves ok, gas paddle moves ok.
Started again, full throttle.
I moved the choke cab back to where it was,
started again, full throttle, shut it down,

So I gave up, 😡😤
__________________
1972 GMC Sierra C2500, V8-350
1986 GMC Sierra C2500, V8-454
1986 GMC Sierra C2500, V8-LS1
1986 GMC Sierra K2500, V8-350
1987 GMC Sierra R3500, V8-454
1997 GMC Sierra K2500, V8-454
Captain J is offline   Reply With Quote