stalling out
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stalling out
I am running a straight 6 in a 77 f150 I have cleaned the carb and choke, replaced fuel filter, and topped off with mid grade gas. I can start up the it idles fine, I can floor it in park, but as soon as I start to get going in gear it starts to shake like it isn't getting enough gas and dies. It starts back up and goes another 200 feet and does it again. Any one have any ideas what might be causing this?
Thanks everyone I do have an c6 in this truck through it still needs fixing, but until I just won't park any place that requires reverse.
Thanks everyone I do have an c6 in this truck through it still needs fixing, but until I just won't park any place that requires reverse.
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From: Murray
Howdy,
Could be your ignition coil is bad that would keep it from running for any reasonable ammount of time. You also might want to check your timing to see if its off that could cause it to do the same thing. Also pull off your dirtributor cap and see if the contacts are broken or corroded this might also be a cause. If so you'll probably have to replace the points and condenser as well just to be safe. If this doesnt fix it you might want to consider rebuilding the carb and re adjusting the fuel mixture because it may be runing too rich and flooding the carb, which in turn would kill it. If you dont know how to do some of this stuff a Haynes manual could be helpful.
Those are just some of the things I can think of right now, let me know if youve tried any of those other things.
-Chris
P.S.
Welcome to FTE
Could be your ignition coil is bad that would keep it from running for any reasonable ammount of time. You also might want to check your timing to see if its off that could cause it to do the same thing. Also pull off your dirtributor cap and see if the contacts are broken or corroded this might also be a cause. If so you'll probably have to replace the points and condenser as well just to be safe. If this doesnt fix it you might want to consider rebuilding the carb and re adjusting the fuel mixture because it may be runing too rich and flooding the carb, which in turn would kill it. If you dont know how to do some of this stuff a Haynes manual could be helpful.
Those are just some of the things I can think of right now, let me know if youve tried any of those other things.
-Chris
P.S.
Welcome to FTE
4wd Low
Joined: Dec 2003
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If the truck idles fine in park then has problems in gear, any gear (reverse and drive) assuming it is an automatic then it has nothing to do with the fuel or ignition. It is a vacume leak in the transmission, I am not shure how it works but you have a vacume line that goes to the tranny and it "tells" the tranny when to shift. And if there is a vacume leak in the tranny then when you put it into gear the leak is opened and this robs vacume from the timing advance and then your motor runs like it is way our of tune. I had a similar problem last spring when my trucks brake booster sprang a vacume leak. It ran like i had blown a head gasket, so i poped the hood found the leak pluged the hole with my thumb and the engine ran like it should. And it only cost me a few bucks and a hickey on my thumb.
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From: okc
Originally Posted by coorslightbeer
If the truck idles fine in park then has problems in gear, any gear (reverse and drive) assuming it is an automatic then it has nothing to do with the fuel or ignition. It is a vacume leak in the transmission, I am not shure how it works but you have a vacume line that goes to the tranny and it "tells" the tranny when to shift. .
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From: springstead
what kind of shape is your alternator in. your fuel pump could be another option. is there any fuel leaking from your carb. when you cleaned the carb, was there any grime or other crap that could be clogging your jets and whatnot. spark plugs maybe, um... the vacuum modelor will have nothing to do with it, seeing as that i have run my truck for an hour or so without the thing on. now a different vacuum line, sure. not the tranny line. you can still shift it manually, except third is a tough one, because you are reving the hell out of the motor to get it there. but anyway, check that and see whats up.
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From: Catlin USA
Just had a similiar problem - idled good, could rev it up fine by hand, very responsive manually working the carb, but drive it down the road and it starts to stumble badly. My problem was a sticking accelerator pump. Swapped the carb out with a known good one I had laying around, and no more problems. Could certainly be electrical or vacuum, but you cannot discount fuel either............