doesn't run right
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Tuned
Joined: Jun 2008
Posts: 266
Likes: 7
doesn't run right
Driving home tonight the truck started bucking and jerking and didn't run right. It idled fine, and goes at full throttle, but everything in between is not right. I'm not real sure where to start looking.
Laughing Gas
Joined: Apr 2001
Posts: 868
Likes: 3
From: New Glasgow, Nova Scotia
Sounds like carb trouble to me as well, much like the primary is blocked a bit. Try tapping the side of the carb with a plastic hammer , GENTLY , with the motor running and see if the RPM changes on it own. I have cleared trouble like this by doing this or at least isolated the problem .
Elder User
Joined: Feb 2008
Posts: 640
Likes: 1
From: US/Baja border
Grud can build up in the fuel bowl and cause some problems like that, usually it clears itself. You might check your fuel filter just to see what's in it but if it's reaching high r's it should be ok
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
I agree, check the accelerator pump. With the truck off, pull the air cleaner off, and look down the throat of the carb. Pull the throttle and you should see two nice streams of gas shoot onto the venturis.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
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Tuned
Joined: Jun 2008
Posts: 266
Likes: 7
That's right, My Grandpa was standing there and said back when he had a farm truck like this he replaced the condenser and points every winter and never had a problem. Since this truck is older than me I am not real familiar with some of the components.
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MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Understandable. My Galaxie has points and they are a pain to keep after. I had that same problem as you a few years back and had to replace the breakerplate and ground wire. If they really get to be a pain, I'd recommend looking at a Pertronix Ignitor setup which retrofits a Hall effect sensor (the same breakerless switch in Duraspark) in place of points. It keeps the original look and you don't have to keep replacing points.
Senior User
Joined: Apr 2008
Posts: 224
Likes: 0
I've noticed something about people I know (outside these forums) and even a few people inside, that when there's a problem "Rebuild the Carb!" - kind of like in Star Trek, if there's a problem "Reverse the Polarity!".
Just thought I might point that out.
Just thought I might point that out.
Elder User
Joined: Dec 2007
Posts: 739
Likes: 1
Actually while it may seem like a knee jerk reaction? Just about every drive ability issue starts with checking the fuel system as it can be the most problematic. 2nd only to an ignition problem where the symptoms are normally "dead truck with no spark". Oddball issues with worn wiring are not quite as common as problems as people make them out to be. Yes they do and can fail! However when working a troubleshoot problems? You always start with the weakest areas known to cause those problems first.
S-