Will not start up if engine is hot - 2006 Nissan Altima

There could be several reasons why your Corsa Lite is refusing to start when the weather is hot. Here are some possible causes:

1. Weak battery: High temperatures can cause the battery to lose its charge quickly, and if the battery is already weak, it may not be able to provide enough power to start the engine.
2. Faulty starter motor: If the starter motor is faulty, it may struggle to turn the engine over, especially when the engine is hot.
3. Clogged fuel filter: A clogged fuel filter can prevent fuel from reaching the engine, which can cause starting problems.
4. Vapor lock: In hot weather, the fuel in the fuel lines can vaporize, causing a vapor lock, which can prevent fuel from reaching the engine.
5. Ignition problems: If the ignition system is not functioning properly, the engine may not start, especially in hot weather.

To determine the exact cause of the problem, you may want to take your car to a qualified mechanic who can run a diagnostic test and identify the issue. They can then make the necessary repairs to get your car up and running again.

no engine size told.
well there are like vast causes of this
my engine starts but stalls.
even parked in a drive way , transmission in pARK?
The macro causes are 3. (100 yeas same gas/petrol) rules
bad spark
bad fueling (even bad fuel)
bad engine (cam belt slipped) this fail trumps above.
a tech tests them all in order.(based on age, and miles) saves time.
no miles on car stated 100k 200k, 300k miles or more?
when was the last tune up (filters all, spark and belts)
not told. and matters huge.
does it fail cold and hot engine both, or can never get it hot
hot = means normal engine temp, 180f to 200f
is RPM started up, cold 1500RPM or less (or happens too fast to tell)
does engine die just as you shift to DRIVE.?
failures parked are the most easy to find, (moving fast failures hard)
tell more and get more, tell all things the engine does, in all modes of use. AND WHEN AND HOW LONG IT TOOK TO FAIL.
or hot engines turned off will not staRT (BUT CRANKS FAST)?
THERE IS A STORY HERE BEGGING TO COME OUT BUT DID NOT.

THE MICRO LIST IF CAUSES ARE HUGE.
EVEN a bad wire vast.

how soon after it starts does it stall,
1second 1 hour ? what, ?
some engines fail hot soaked, starts cold, but never hot

WHY NOT GET A SHOP TO FIX IT. IN USA AN ASE SHOP !

never stalls running>? (2nd shoe drops.................)
which engine.???? of the many, cant fix engines, if unknown.!?

1. my guess, is the air fuel ratio is why to lean hot. engine.
2. or it has hot sock failure , spark loss. ever check spark hot failed.?

there are 1 to 10 tests to do, want to test? or guess?

not sure what that means.
lets start over.
your saying car runs great, cold then hot.
then hard to restart a hot engine, right?
the light thing i dont understand
first off, when you stall and engine or just key ON.
the lamps all self test (read the operators guide there)
this is only a lamp test.
odd, the most important is skipped the CEL, check engine light.
is the engine stalling?
hot restarts, fails are: many.

1. injector leaking at shut down.
2. ECT reads to cold when hot. can be below caused
3. Engine thermostat stuck open and restarts are over rich and floods. that hot engine must be at 180F or more,
4. never did a 60,000 mile tuneup this decade?
5. Fuel pressure too high.

i do tune ups first.
then check coolant temperatures, hot. 180F min, and holding or i kick the thermostat to the curb (new stat time)
if it sill dont want to hot start
out comes the scan tool
i scan it, got DTC errors.
is ECT reading 180F ? or above?

that is start on diagnosis.

you have overheated the engine maybe thermostat or water pump fault

hard starting problems when engine hot could be restricted air filter.restricted clogged fuel injectors.engine could either be diesel or gasoline.if engine dont start and starter wont turn over engine. could have bad battery ground cable or battery positive cable could have broken place when cable get hot crack increases cause less current engine wont have enough power to turn over.

once had the same problem the armature in the starter expands when hot and wont crank cools down and starter works

Hi.. I had a very similar problem recoverrd to are workshop by the A.A around a month ago.
Exactly the same problem (left to cool started.? Once worm or hot engine just turning over ?)
Afdter reading all known folts and finding nothing to do with what I'd wanted. It took some time ?
Cutting it sort if found when I replaced a intermittent faulty fuel relay and run till engine hot (untill cooling fan cut in) Then turned off engine .. on turning key to see if this had cured my problem?
The engine started frist turn of key after repeating this a number of times .. this car was now starting fine (whether hot or cold)
Problem fixed..
Hopefully this will be of some help to yourselves
Hears hopping
Don Milward Premier Garages

The normal reason why a hot engine doesn't start is the choke. Your fancy new range rover will have a computer controlled choke that will be activiated by a temperature sensor. maybe this has failed or is disconnected
In my ancient range rover I have a manual choke but essentially the same engine. I know that if the motor is hot I can't start it with the choke on.
The way the choke works is it restricts the airflow into the engine so that there is a richer fuel / air mixture which is needed for a cold start. If the engine is hot and the choke comes on the engiine floods with petrol and there isn't enough oxygen for it too ignite in the cylinders. To start a flooded engine you have to open the choke and crank the motor without pressing the accelerator. This pumps out the petrol vapour and eventually it will fire and start. If the computer thinks it is cold because of a disconnected or faulty sensor it will put on the choke whenever you try and start and the engine will flood.
I think a vapour lock is unlikely unless you driving in extremely hot weather (above 40 degrees celsius).