throttle sticking

[305caprice]

yea ive been noticing this more and more since i got the car somtimes the throttle sticks like when i give it a pump to start in the cold of a morning it idles a little high i give the pedal a quick punch and it settles back down to normal ive also caught the car basicaly powering itself up a hill or on a straight and lvl getting up to 20 by itself any one know a good way to fix it or a part i may need its a carbed 305 1988

[disignition]

I've seen faulty cruise control increase speed on hill and straight away. Did you take the throttle linkage loose from the carb, does the carb linkage work ok. Check throttle cable. I have an 88 out front, different model, waiting on new throttle cable. I can't get it inside to work on it, rainy weather has me slowed down. Maybe it needs a carb kit?

[305caprice]

basicaly i havent realy tore into it yet i was trying to get some educated guesses besides wd-40 from what i can tell the throtle cable dosent bind and looks in good condition im kinding thinking it may be the criuse if thats the case illrip the hole thing out

[j cAT]

Originally Posted by 305caprice

yea ive been noticing this more and more since i got the car somtimes the throttle sticks like when i give it a pump to start in the cold of a morning it idles a little high i give the pedal a quick punch and it settles back down to normal ive also caught the car basicaly powering itself up a hill or on a straight and lvl getting up to 20 by itself any one know a good way to fix it or a part i may need its a carbed 305 1988

these vacuum operated choke components get damaged from age and being exposed to carb cleaner...inside all those choke/carb vacuum operated devices are rubber diaphrams,,,if they have a small hole you will get what you have now...

also careful lubing and cleaning of the choke/carb linkages are required..

removal of the throttle linkage from the carb and test for ease of movement just in case the cable is binding....this is possible on theser very old vehicles in a salty damp environment....

used to live in fallriver/newport,,,very damp...

[jd-autotech]

get some carb/throttlebody cleaner and a tooth brush and clean the bore near the butterfly