Tercel4WD.com

yeah, and this whole car is particularly ugly. i rescued it from a hippie who had neglected every single possible aspect so it's been a much bigger, longer, more involved project than i had anticipated. i would never have guessed though because the thing drove to my house just fine! that's the ...

Great job!

I certainly did notice those rivets. I am glad you were able to remove it easily without removing the automatic-choke coil housing. Certainly with the choke not functioning properly, the engine will run poorly because of the messed up air - fuel mixture. A fully open choke with a cold ...

where is the adjustment screw? i haven't noticed it or seen anything in the FSM about it. what does it adjust?

i'm at work right now, otherwise i would just go outside and take a look, and this is really curious.
The adjustment screw is on the front. You can see the original factory yellow thread ...

the project terc i have been working on has had cold idle issues that i hadn't figured it out when this thread was revived. the car would fire up nicely, but after a few seconds the high idle rpm would start dropping and end up kind of bouncing around 1300 for a few minutes until it warmed up more ...

Gokhan, I bought the new choke breaker from Rock Auto in Oct 2010 for $97. I drilled the rivets out of the choke housing and replaced them with little screws and bolts. The lower bolt on the choke housing was a little difficult to get on. I ended up replacing the CB twice, the first time with one ...

Well, the choke-breaker is riveted onto the air horn; therefore, it's apparently not meant to be removable and replaceable. Perhaps it's possible to remove the bracket the automatic choke and choke breaker are riveted onto and replace both. Otherwise, you would have to break the rivets and then ...

Canadian models have an adjustable and removable automatic-choke coil housing. By removing the automatic-choke coil housing, you can access the mounting screws of the choke-breaker bracket and remove the choke breaker with its bracket. US models have the automatic-choke coil housing riveted and you ...

Folks,
The problem was the choke breaker A side not holding vacuum. I replaced the choke breaker, and the problem was fixed!
I was misled into thinking it was the jet, because I couldn't blow air through the jet per the FSM test. Later I used a
vacuum tester, and the jet(s) worked fine, delaying ...

Folks,
The problem was the choke breaker A side not holding vacuum. I replaced the choke breaker, and the problem was fixed!
I was misled into thinking it was the jet, because I couldn't blow air through the jet per the FSM test. Later I used a
vacuum tester, and the jet(s) worked fine, delaying ...

I have now verified that the problem is a fully closed choked. A bad choke-breaker diaphragm A is the likely culprit. Here are the details:

After a fairly cold night, I removed the air-cleaner cover. The choke was at around 55 degrees from the horizontal.

Pressed the accelerator all the way once ...

I've had my '83 Tercel since 1984 and the only thing I have had to do with the choke is occasionally spray some WD-40 on the associated linkage if it was hanging up, as evidenced by the choke not closing when the engine was started cold.
A carburetor + choke cleaner like the Gumout spray will work ...

Thank you for the warm welcome, guys! I actually do have an original hardcopy of the 1985 Corolla FWD OEM repair manual. I've also downloaded the PDF for the Tercel manual for the fun of it. It looks very similar. It's great job by the person who scanned it!

As I said before, the problem I am ...

I have exactly the same problem with a 1985 Corolla 4AL-C engine, which is very similar. I am still troubleshooting it. So far, this is what I know.

First, the theory of operation. (Read the theory carefully before posting any reply.)

(1) Choke valve is fully closed when you pump the accelerator ...