Не пали като се нагрее ..
Проблема е следният: сутринта ако съм оставил колата на някое слънчево място просто не иска да запали, стартера върти ама двигателя не зацепва (все едно е свършил бензина). Ако я оставя в сянката на блока и колата е още на сянка, като се кача пали без проблеми, но оставя ли я на слънце някъде след 11 вече не иска да запали, вечерта като залезе слънцето и се оправя :) . Също ако съм я карал сутринта по-късно през деня няма проблеми, до колкото съм забелязъл дали е валяло дъжд не е от значение. Зимата палеше на -18 C без проблеми, миналата година ходих на диагностика във Ванто, ама дори и там не можаха да ми дадат точен отговор....
Starting Problem in hot weather
Аз също имах проблеми с паленето при горещовреме, но веднъж или два пъти за 4 години. Но проблема е често срещан. Прилагам ви тема от английския форум.
Starting Problem in hot weather
Mike Bilton
My 155 16V 2.0 starts perfectly every morning. However when the weather is hot (like today) and the car has been sat in the sun until the afternoon it sometimes refuses to start (the first attempt of the day). It will sometimes chug into life if you hold the accelerator down while turning over (as if the engine is flooded)
This has been an intermittent problem since I've had the car, about 5 years. I thought I could hear the cooling fan running so replaced the water temp sensor to no avail.
Any ideas?, I'm at a loss to see how such a small change in ambient temperature can effect how a cold engine starts.
As I say, it only happens if the car has been sat in the sun all day before I start the engine,
Vish
I have had exactly the same problem with my 1.8 16v about 3 times in 7 years. Exact symptoms and I can also here what sounds like the cooling fan running when it refuses to start. Takes about 5 or 6 attempts and then finally chugs into life then is fine. never a problem when engine is hot just when starting from cold when it has been in direct sunlight, but again only very infrequent. I was talking to jimmybob about it only last week, he has never heard of it. I have no advice but it is reassuring to know I am not alone. If you find owt out let me know please
JackPJW
Same with all my previous Alfas. I reckon it's something to do with heat sink into the fuel. Maybe it vaporises in the line or something so you get a sort of vapour lock when you first turn it over.
Had the same on the Twinny!!! Used to start after flooring the throttle while cranking, switching off and then doing it again.
wrinx
Mike Bilton
Good to know I'm not alone!
I wonder if it might be a faulty air temp sensor, tell the engine the air is cold when in fact it is hot.
The next time it happens, I'll get out with my multimeter
You would imagine this is a much more serious issue in Italy!
Richard ARTC9
I might have a solution for this problem, one of the ARTC members had the same problem.
One of our members (Alfa tec) told that there where production problems with some of the 16v eeproms of the main main ECU wich can give these problems.
Here in the Netherlands the dealers are told to replace these eeproms for free.
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1992 155 2.0 8v (sold)
1993 155 1.7 8v (sold)
1995 155 2.5 V6
Maybe the heat under the bonnet is confusing a sensor and it thinks the engine is hot (as someone suggested). Maybe try cranking with just a little throttle when this happens.
Marlon