Help! Engine Shudders When Gas Applied
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Senior User
Joined: May 2006
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Help! Engine Shudders When Gas Applied
well the engine runs great and then you put your foot on the gas and it kinda coughs and shudders but still runs....then after a couple mins u hit the gas and it works! checked the distributor and it seems fine no moisture...wuts goin on?!
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Joined: Nov 2005
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From: Boise, ID
My truck did that for a while, My problem was the accelorator pump on the carb. It had a big leak. I don't think it's anything too serious, probably because the motor isn't quite warm yet. Does it do it after you start it, then after it warms up a bit it goes away?
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i do have a feeling that it is the carb but it does it sumtimes in the middle of me driving...yea i replaced the inline fuel filter and the one i have by the carb...so i now it aint any dirt or rust particles cloggin the jets...i was driving it this morning and it did fine cept for bout half an hour in i was cruisin bout 45 and it started coughin and droppin speed....then thats wen i got glued to the seat and hauled off...geeze...btw i have a very low geared truck i dont like the fact that it revs so high in 4 gear goin 45....well 4000 rpms isnt bad just doesnt sound good to me u know? im screamin down the road and only goin 45 i dont wanna go past that..
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ha! im reversing out of my driveway this morning...and its doin it again kinda sputterin still runnin but sputterin and i just keep backin up outta the roadinto my neighbors driveway and push the clutch in and rev the engine a lil bit maybe it will clear it out or sumthin ..........then BOOM it backfires...kinda scared the $*** outta me...it also did it last night while drivin down the road....wen it started to sputter, which i told you one post up....
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well i noticed that the vacume advance valve thing on the side of the distributor is loose, the screws broke...so it wiggles but i held it and it in place and it still didn't work write and the suggestion is to get a new distributor right? lol...oh and the fuel tank is clean the guy that owned it ran it everyday its been running since it was begot....no sitting....and like i said i changed the fuel filter and the filter is runnin clean pure gas...
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Joined: Feb 2006
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From: Sonoma, CA
The vacuum advance module for the distributor can be replaced by itself. As long as the screw holes are good re-install and test the one you have or replace it. It certainly sounds like a problem if not the problem. It will not work correctly if it is not firmly mounted.
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Wiggle the dizzy shaft side to side to see if it is okay.
It was easier to see, if it was an old point dizzy.
The vacuum advance can be replaced by itself.
It may be seized or the diaphram may be leaking anyway.
Replace that for sure
It was easier to see, if it was an old point dizzy.
The vacuum advance can be replaced by itself.
It may be seized or the diaphram may be leaking anyway.
Replace that for sure
Last edited by Mil1ion; May 16, 2006 at 01:02 PM.
