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I have a weber 32/36 on my 86 Nissan 720 the truck runs fine but has a lack of power, and when I would push the accelerator all the way while driving the truck hesitates like there's not enough fuel,when I back off to half throttle or 1/4, it'll run fine and speed up...the problem is it takes it's time getting to 60-65 m.p.h and anything over I'd have to floor it but the truck hesitates or stumbles and acts like it'll die...any clue on the carb???? Even at lower speeds mashing in the pedal it does the same hesitation and stumbling like there's little fuel or the jets are not enough.....

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  • 8 Answers

Sounds like engine need some cuddle :) I mean, first thing to do is to check engine compression ratio. If that is ok, then make sure carb adjustments are correct and all fuel lines ar clean. Good luck!

Posted on Feb 13, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 31 Answers

SOURCE: Truck hesitates when gas pedal pushed down

I assume the truck isn't due for a tune up if it is an '07. Sound like a mass air flow or manifold pressure sensor problem. Autozone will pull the problem code for free and the sensors aren't too expensive, but I your truck should be covered under warranty right?

Posted on Jan 07, 2009

USfalcon
  • 175 Answers

SOURCE: 2001 chevy monte carlo hesitates or stumble on acceleration

try to clean the MAF which locat on the throtel and check the spark plugs from miss fire

Posted on Mar 14, 2009

  • 1 Answer

SOURCE: Car stumbles,hesitates,loses power on Hwy, randomly

Did you check earth connection of electric system?

Posted on May 10, 2009

  • 4088 Answers

SOURCE: 96 Toyota Tacoma lacks take off power and stumbles

Any trouble light? Sounds like it might be misfiring during acceleration which is more related to ignition quality than timing. Check the spark plugs--if badly worn, replace them. Might need new spark plug wiring. Check the air cleaner. Replace the O2 sensor if the truck has a lot of miles. Look for loose or cracked vacuum hoses.

Posted on Jul 14, 2009

KENNETHROSEN
  • 60 Answers

SOURCE: I have a 1998 nissan 200 sx 1.6L engine and the

SOULDS LIKE EXCESSIVE EXHAUST BACK PRESSURE CAUSED BY A RESTRICTED CAT CONVERTOR. SHOULD HAVE NO MORE THAN 1.5 TO 3 PSI CHECKED AT THE O2 SENSOR AT IDLE AND AT 2500 RPM. THE CONVERTOR CAN BECOME DAMAGED IF UNBURNT FUEL ENTERS IT. THIS IS CAUSED BY TUNE UP CONCERNS USUALLY.

Posted on Oct 06, 2010

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