Question about 1983 Toyota Pickup

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83 toyota p.u. 4x4 running rough.

Truck idles smoothe, But smells rich running or sitting but no visable leaks, runs rough @ lower RPM's on 2nd,3rd,4h,&5th gears, will not resond well to quick stab accellerations-bogs down, responds to slow throtteling but still rough like it's missing,it stuttuders,hesitates, it seems to run a little better at higher RPM's all gears,but a chore to drive like that... I've change plugs, I have sprayed carb cleaner while running and it cleaned up pretty well,the choke seems to be functioning properly, I've adjusted the air/fuel mixture to seat then 1-1/2 out I was told as standard.I'm going to change plug wires tonite and check plugs again,Please help Thanks. RR

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I think you must have the carburettor plunger not going well as you are getting flat spots under sudden acceleration, I think the best way to go is to get the carburettor overhauled.

Posted on Dec 15, 2008

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What is normal sitting idle for 83 4x4 toyota

Posted on Aug 03, 2012

  • Daniel N Aug 03, 2012

    this is not a solution i made a mistake sorry

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I agree. Get that carb looked at. Mine did that until I finally got it fixed. It didn't take a rebuild they just fixed the problem (a diaphram I believe) and adjusted the carb and everything was fine. If it runs rich for too long it'll screw up the catalytic converter requiring a replacement to pass smog. Like mine :-(

Hope this helps, good luck.

Posted on Feb 03, 2010

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