1987 Toyota Corolla Hot No-Start

1987 TOYOTA COROLLA
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JCHAMBERLAIN
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  • 4 POSTS
the car will start when cold, and run fine once it starts. but once it gets hot, if you stop for 30 mins - 1 hr or so, then try to start the car, it will crank, but not start.

to get it started i have to add carb cleaner directly to the carburator.


what is the problem, i bought a new fuel filter, and it ran fine for a day or so. but i just got stuck today.

it ran fine once it got started.
Apr 16, 2006 at 7:22 AM
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JCHAMBERLAIN
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  • 4 POSTS
it runs fine once it starts
Apr 16, 2006 at 7:49 AM
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CRIS02
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  • 5 POSTS
if you find out what the problem is please post it b/c i have been having the same problem; i have posted like 4 threads and I haven't gotten any responses. My camry has been to 2 shops and still nothing.
Jun 20, 2006 at 6:27 AM
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JCHAMBERLAIN
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  • 4 POSTS
i fixed three things and it seems to be running fine.

one, it seems to get water in the the carbourator, so i add water remover from time to time.

two the carbourator pre heat hose had delaminated, thus clogging it (outside looked fine, but inside came undone and closed up).


3rd i was getting flooding because the bolt holding down my caebuerator broke, when i tried to start it hot it flooded the engine.

from time to time it takes a few extra seconds to start, but now it always does. hope that helps.

reply if you found something that fixes everything.
Jun 20, 2006 at 6:40 AM
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CRIS02
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  • 5 POSTS
thanks i am going to check the carb. i'll let you know
Jun 20, 2006 at 9:57 AM
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JCHAMBERLAIN
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  • 4 POSTS
i should also say that i check/ replaced the obvious things. timing, fuel filter, air filter etc
Jun 21, 2006 at 10:56 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Maybe your automatic choke is binding-closing off the choke plate when hot creating the no start
Jun 25, 2006 at 11:13 AM

Suggested Repair

Check whether the automatic choke is binding and closing the choke plate when the engine is hot, which can cause a hot no-start. Also inspect the carburetor for flooding, a loose or broken hold-down bolt, water contamination, and a collapsed preheat hose.

Conversation Summary

A 1987 Toyota Corolla FX starts and runs when cold, but after sitting hot for 30 minutes to an hour it cranks without starting. Adding carburetor cleaner helps it start, and a new fuel filter only helped briefly. The owner later reported water in the carburetor, a delaminated and clogged carburetor preheat hose, and flooding caused by a broken carburetor hold-down bolt. After addressing those issues, the car started reliably, though sometimes slowly. An expert suggested the automatic choke may be binding and closing the choke plate when hot.

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