1978 rolla help please - Toyota Nation Forum : Toyota Car and Truck Forums

plazma · 07-07-2009, 01:52 PM

i own a 78 2dr coupe automatic, and it runs fine but dies when u come to a stop, any ideas on what the problem is? i can drive it if i put my foot in the brake and my foot in the gas at stops but that gets old id rather it not die.

any help would be mucho appreciated

EdgarTRD1.8 · 07-07-2009, 08:54 PM

Maybe is the carburetor setup, or a vacuum line in the carburetor is out or broke. Check first the booster vacuum line, if you said the problem is when you stop, can be that.

Suerte...

20rCorolla · 07-23-2009, 11:56 AM

its not getting enough fuel check filter. if thats not it pull the top of the carb off and check for proper float alinment or a dirty float boal. mine was doing same thing... float boal was dirty up th the jets

datzunzcar · 08-18-2009, 11:40 AM

I have a 78 corolla coupe SR5, 5 speed. It has been aggravating me for quite a while, I have replaced all my vacuum lines and it has started to idle about half the time, mine is also only running on one side it for some reason wont pull in the secondary. I have been looking for a rebuild kit or my wish list is for a used weber as I cant afford a new one. If you figure out what your issue is I could use the help. The vacuum hoses are the biggest problem Ive noticed. Good luck!

plazma · 09-01-2009, 03:58 PM

ya i figured out that it was my fuel filter. i replaced that and my car ran great until like a week ago, when something broke and whenever i give it gas it will die. anyone have any ideas? or a link to the vaccuum diagrams??

CJCride · 09-01-2009, 04:03 PM

The origional problem could be the curb idle, if i recall it should have a hot and cold adjustment, bet yours is the hot idle set too low.

plazma · 09-09-2009, 05:39 PM

u have any ideas where that adjustment screw is?

20rCorolla · 09-11-2009, 10:41 AM

All right ill say again its fuel. Im a mechanic people ASE, and EPA certified. If the brake booster was leaking it would run like shit all the time like it has a huge vacuum leak.... because it would. If youve checked all vaccum lines for a good connection then its obviosly fuel. Now its either a colapsed line, dirty filter, worn out pump, float misajustment, or a diry/plugged carb. Ive had this problem on all of my corollas, its always carb related. Cough up the forty bucks and rebuld the aAsin carb. Theyre good carbs just after 30 years shit gets old. If yu live in a non emission area rip all the vacuum lines off except for the ones for 1.brake booster. 2.vaccum advance(pot closest to distributor)3.secondary accelerator pump(diaphram thingy on the passenger side of carb) 4.transmission modulator if auto. Run all lines to front ports of carb. works fine on mine. Take off EGR tube and cut fittings off, flatten tube and roll it up so the fittings act like plugs. make a block off plate for egr. and marvel at your gained of 5-15 horse yaaaay.

20rCorolla · 09-11-2009, 10:44 AM

Quote:

Originally Posted by plazma

ya i figured out that it was my fuel filter. i replaced that and my car ran great until like a week ago, when something broke and whenever i give it gas it will die. anyone have any ideas? or a link to the vaccuum diagrams??

tell me if this is the exact story. the car will start and idle fine. and when you hit the gas it dies....that my friend is the accelertor pump. time to rebuild the carb.

plazma · 09-11-2009, 03:49 PM

Quote:

Originally Posted by 20rCorolla

tell me if this is the exact story. the car will start and idle fine. and when you hit the gas it dies....that my friend is the accelertor pump. time to rebuild the carb.

yes that is it!!!

Quote:

Run all lines to front ports of carb. works fine on mine.

could u take a pic of this? im a little carb retarded im so use to fuel injected this is my first carbed car, and yes my county there are no emissions so i will be doing the ripping out of everything.