crank shaft sensor - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Thread Tools Search this Thread
(Post Link) post #1 of 5 Old 10-09-11 Thread Starter
Status: -
Join Date: Aug 2011
Location: United Kingdom
County: Antrim
Posts: 6

Member car:


crank shaft sensor

Hi my 1.8ts 156 keeps cutting out I've been told it's very likely to be the crank shaft sensor
does anyone know if this is a simple job or not.

Cheers Brian
brian77 is offline  
Sponsored Links
Status: a.k.a. Ironman
AO Member
AlanB156's Avatar
Join Date: Aug 2010
Location: United Kingdom
County: Lancashire
Posts: 513
Images: 5
I've had the very same problem. If it keeps cutting out when warm, then not starting immediately after (i.e. keeps turning over but not firing up) then it's most likely crank sensor.

It's a bit of a pain as the sensor is in a tight spot on the back of the engine block. Sensor only costs about 20 or so.
Took me about 45 mins. You'll need to remove the air intake pipe & throttle body. If you've got really skinny, flexible hands you should be able to go in from the top. The sensor is located on the back of the engine block, right on the edge between engine and gearbox. I'm not too sure which connector is the crank sensor now.
You do have the option of getting to it from underneath, but be warned - it's just as tight as from the top, but you have a better view on the sensor. It's only held in with 1 torx bolt.
When you're removing the sensor, make sure you remove the o-ring with it, otherwise you'll not get the new sensor to sit right back in and it will cause problems yet again.

Hope this helps

"Fortune Favours The Brave"

2001 156 | 2.0 TS | ??? bhp | 18" Momo Wheels | Zender Body Kit | Colour Coded Grill | GTA Style Headlights | BMC CDA | Stainless cat-back Exhaust | Remapped
AlanB156 is offline  
Status: #keepFightingMichael
AO Gold Member
EauRouge's Avatar
Join Date: Jun 2009
Location: Suriname
County: Brokopondo
Posts: 7,568
Images: 12
The crank sensor is the Brown connector on the back left hand side of the engine as you look from the front. As above remove induction and throttle body and reach around back of block and its on the right hand side of the engine block. In my experience the hardest thing is removal of throttle body and induction as long as you are relatively flexible and don't mind lying over engine.

Last edited by EauRouge; 11-09-11 at 00:10.
EauRouge is offline  
Status: - Update
Posts: n/a
(Post Link) post #5 of 5 Old 10-09-11 Thread Starter
Status: -
Join Date: Aug 2011
Location: United Kingdom
County: Antrim
Posts: 6

Member car:


thanks very much that was helpful but i'm a dick as far as mechanical things are concerned so i'll pass this on to who ever is doing it
cheers brian
brian77 is offline  

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

crank , sensor , shaft

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

For the best viewing experience please update your browser to Google Chrome