CARB MESS
Asked by Leonardo Aug 28, 2016 at 07:19 PM about the 1979 Toyota Pickup
Question type: Maintenance & Repair
My truck dies when lowering the idle rpms below 1500. I mess around with
what I believe is the mix idle screw on the carburetor to try to lower the rpms,
but when I try and calm the car down to 1000 rpms (what should be normal)
the car stumbles and dies every time. Whats wrong with my car?
4 Answers
I happened to have messed around with the fuel pump prior to this problem. I turned on the engine right after disconnecting the fuel pump from fuel tank. The pump might of have only sucked air and blew that air through the carburetor system and messed something up.
well, I'm blaming the carburetor because this problem happened right after I messed around with the fuel pump and carburetor. The truck wouldn't idle at all after I did that fuel pump messing around thing. I managed to idle the truck again by moving the carb screws but it would only idle at high rpms. But I might give it a try to what you say.
Check vaccume lines. If you donfind issue of leaking right away try carefully sprayiny starting fluid in different places (if possible use directional straw on nozzle to get a more direct licalized spray) and only use small spirts to try to pin point exact location when ir if idle increases if it does that will be yhe lication of a vacuum leak.
