164 suddenly running on 5

For the technical things.
Post Reply
Posts: 1
Joined: Tue Feb 02, 2016 8:23 am

164 suddenly running on 5

Post by Hans66 » Tue Feb 02, 2016 8:26 am

Hi all,

was on my way home from work and about 5 minutes into the drive my 164 3.0 12V started popping into the exhaust and about one minute later started running on 5 cylinders only. There is no intermittance about this - it simply runs on 5 only, no matter what.
Had a look at the distributor and that looks used, but not damaged, listened to the injectors and they all sound good. Tried pulling the caps off and this didn't make an obvious diference to the way the engine runs.
What should I look into first, apart from changing the leads and plugs? Any type specific advice?

Thanks in advance,


User avatar
Q4 owner
Posts: 1231
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark

Re: 164 suddenly running on 5

Post by Alfan » Tue Feb 02, 2016 8:25 pm

So you haven't been able to establish which cylinder has the problem? And has it continued to do so after restarting it?

I don't know if this would make an error code, but that might be worth checking out. No other ideas from my side, really.

You could try and asking here:

http://www.alfabb.com/bb/forums/164-168-1991-1995/" onclick="window.open(this.href);return false;
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 270kkm
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 65kkm
2011 Alfa Romeo Giulietta Multiair TCT Bianco Pastello 195kkm
2015 Alfa Romeo 4C Rosso Competizione 100kkm

User avatar
3.0 V6 24V owner
Posts: 757
Joined: Wed Oct 14, 2009 7:26 pm

Re: 164 suddenly running on 5

Post by wilco » Fri Feb 05, 2016 10:53 am

check spark plug. see if it fires
If okay, check injector. change it With a working one from another cilinder.
If okay check compression. '
you should be able to find an error in 1 of these 3 Things.
Henry Ford, 1939: "Every time I see an Alfa Romeo pass by, I lift my hat."
--Alfa Romeo 164 3.0 V6 24V Q4--
--Alfa Romeo 164 3.0 V6 24V--

Post Reply