Hesitation on acceleration..

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Sep 29, 2006 | 10:33 AM

MyTruckOfDeath

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Joined: May 2003

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Hesitation on acceleration..

I just noticed that it's been 3 years since I've posted! But the good news is that I still have the same 1972 F100 .. Yeah!

** The problem I'm having now, is that I can't get the hesitation out of my truck when i take off from a stop. This happens when the engine is hot, cold, warm, etc.. I'm not sure if I just need new plugs and a tune up or what.. I have insalled new points, and entire new dist shaft, new spark plug cables, but there it still is...
Thanks, it's good to be back..!

Mike

Sep 29, 2006 | 11:17 AM

bertha66

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Joined: Oct 2004

Posts: 8,062

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From: Central Oregon

Look down into the carb and see if you are getting a good squirt of fuel from the accelerator pump. There is a ajustment on the linkage to get more or less of a squrit as needed.

Sep 29, 2006 | 01:29 PM

fordxxx

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Joined: Jan 2003

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From: Calgary

My 302 used to do that until I advanced the timing a bit...then the hesitation went away.

Sep 30, 2006 | 12:40 PM

thesprocket26

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Joined: Dec 2003

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From: South Central Boise

I second the accelerator pump. Carb rebuild time.

Sep 30, 2006 | 02:13 PM

Mil1ion

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Joined: Jan 2008

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To be clear.

Is it hesitation or a stutter ?

People mix these terms up.

Hesitation is a ...no power...then quickly.... power

stutter is basically ..it stutters or stumbes to finally achieve power.

These are caused by different things

Oct 26, 2006 | 08:36 PM

JWadeSchutt

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Joined: Apr 2006

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I have had the same problem on my '69 w/ a 390 and it is a studder. I have tried adjustment on the carb and on the timing. Do you think it could be the stock manifold? I have questioned this because i bought the truck a year ago and it had been bored out and had a cam in it. So could it be that it needs to be upgraded to a performer intake?