Choke problem

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PBJPineapple
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Joined: Mon Jan 12, 2015 10:21 am

Choke problem

Post by PBJPineapple »

i seem to have tracked down my idling problem to the automatic choke. it will not close. i checked the coil housing and its giving me a resitance of about 23 ohms. so i'm at a loss
Typrus
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Posts: 3049
Joined: Sat Oct 23, 2004 4:43 pm
Location: Colorado

Post by Typrus »

Carb cleaner the heck out of the choke shaft assembly. It should work loose.
RIP 10-07- 1984 Toyota Tercel SR5 4wd Wagen 6 speed

RIP 04-05- 1986 Toyota Tercel SR5 4wd Wagen 6 speed

1st Terc- 1987 Tercel SR5 4wd Wagon 6-speed, Sadly cubed

1985 Tercel Standard 4wd Wagon w/ 3-speed auto, Living a happy life in Boulder last I knew
PBJPineapple
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Joined: Mon Jan 12, 2015 10:21 am

Post by PBJPineapple »

its loose. just kinda danglin there. i can movie it around just fine to make the car run smooth
keith
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Joined: Sat Sep 30, 2006 1:04 pm
Location: Tennessee

Post by keith »

Your problem is not the choke. The choke is supposed to stay open when the engine warms up. If closing the choke on a warm engine makes it idle smoother, and it seems to run ok at throttle, then the problem lies in the fuel/air mixture jet/screw. You will need to pull its plug, back the screw out completely and clean the tip. Spray carb cleaner into the screw hole until you can see a healthy spray in the throat of the carb. Then put the screw back in, gently bottom it out, no torque, just barely bottom it out, then back off 1.5 to 2 turns. Start it up and adjust the screw for best idle.

If after doing this, you find a hesitation as you first start to accelerate, then turn the screw a 1/4 turn in or out and see if it gets better. If it doesn't, go the other way. You can go up to one more 1/4 turn in the good direction as long as the idle doesn't degrade.
takza
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Location: Tibetan plateau

Post by takza »

Vacuum leak? Loose manifold bolts? Pack rats?
Give a boy a gun-give a biatch a cell phone-and pretty soon you almost got yourself a police state.

Orwell said: War is peace! Freedom is slavery. Ignorance is strength...

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PBJPineapple
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Joined: Mon Jan 12, 2015 10:21 am

Post by PBJPineapple »

the problem is not the mixture. cold, warm, on or off the choke does not close. what i did end up doing that made a huge difference was i stuck a real loose spring on the end of the lever that the fast idle hits. now it ran great for the first test drive. and is still idling much better. but still is dying when coming to a stop ONLY if i press the brakes.
Typrus
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Posts: 3049
Joined: Sat Oct 23, 2004 4:43 pm
Location: Colorado

Post by Typrus »

Vacuum leak to the brake booster is likely. Or in it.
RIP 10-07- 1984 Toyota Tercel SR5 4wd Wagen 6 speed

RIP 04-05- 1986 Toyota Tercel SR5 4wd Wagen 6 speed

1st Terc- 1987 Tercel SR5 4wd Wagon 6-speed, Sadly cubed

1985 Tercel Standard 4wd Wagon w/ 3-speed auto, Living a happy life in Boulder last I knew
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