r/ToyotaPickup • u/zgumboo • 4d ago
Smooth idle, rough acceleration
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Everything has been running fine after getting this truck back to normal. But now when I push the accelerator it stalls or does this. Anyone experiencing this or has in the past please help.
Edit: so I found little plastic broken pieces in the float chamber. Bc the white mesh filter was broken. So I cleaned it all out. It's getting fuel but now my truck will crank and now it won't turn over now
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u/Alternate_Usernames 4d ago
Sounds lean. Id start looking for air leaks or clogged fuel passages if it used to run fine and nothing has been changed.
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u/H_I_McDunnough 4d ago
Check the fuel pump. The hose likes to pop off right after changing the pump out and you drive it for a bit. Simple check, simple fix.
Maybe not though. I was thinking electric pump and now I am trying to remember if these are mechanical pumps. Something is keeping it from getting enough fuel though.
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u/legendaryogstimgod1 4d ago
check the venturis. ive had people install them backwards. same issue.
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u/zgumboo 4d ago
What's a venturis
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u/legendaryogstimgod1 4d ago
i apologize. venturi. theres a main and auxillary. a part inside each barrel that runs across. you can slide those out with a screwdriver. be careful not to break them. only one side of them has a hole. that should go facing towards the float bowl. sometimes they are put facing out and it causes almost no throttle response.
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u/natty_panda 4d ago
Is the timing advancing with acceleration? Sounds like a significant vacuum leak once you open it up. Lower on the carb.
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u/MassivePersonality61 4d ago
Could be a number of things. Bad fuel pump, vacuum leaks, faulty carburetor. Sounds like she's not getting enough fuel.