im Axle Specialists

Technical Fan not kicking in....

Currently reading:
Technical Fan not kicking in....

G

gary29428

New member
Joined
Oct 23, 2008
Messages
7
Points
6
New to forum folks but have a big problem. I have a 2001 Bravo 1.6. While I was idle in traffic the other day the temp needle nearly went off the gauge. Limped home and checked the fan which was worked when I wired in 12v. I figure it is the thermostatic switch which is not turning the fan on. I want to replace it but am not sure what it looks like or where it is. From looking at the engine it looks like it is on a heater hose coming out the back of the engine block and is then connected to a blue hose running under the drivers side wing. Is this the thermostatis switch.....???

Thanks in advance..........:)
 
the fan is switched on by the ecu. it switched the relay on the front of the battery tray to earth the fan. it does this when the coolant temp sensor's signal to the ecu tells it that the coolant is hot.

if your fan didnt come on you should firstly check that it has a live singal, it should alswyas have a live signal at the fan because it is negatively switched.

a common fault is rusty contacts on the relay on the front of the battery tray.

it is not unusual fo rthe tmep gauge to show hot when the temperatue is ok. when that happens the fan doesnt come on because the ecu sees the true signal, but the gauge tells fibs. a good bang of your fist above the gauge can often salve this, although the actual cause is usually an almost dry joint within the instrument cluster.
 
jug said:
the fan is switched on by the ecu. it switched the relay on the front of the battery tray to earth the fan. it does this when the coolant temp sensor's signal to the ecu tells it that the coolant is hot.

if your fan didnt come on you should firstly check that it has a live singal, it should alswyas have a live signal at the fan because it is negatively switched.

a common fault is rusty contacts on the relay on the front of the battery tray.

it is not unusual fo rthe tmep gauge to show hot when the temperatue is ok. when that happens the fan doesnt come on because the ecu sees the true signal, but the gauge tells fibs. a good bang of your fist above the gauge can often salve this, although the actual cause is usually an almost dry joint within the instrument cluster.
Click to expand...


Thanks for reply, have you any idea were the thermo switch is on the rad on a 2001 1.6. I can't see it anywhere.
 
You must log in or register to reply here.

Similar threads

S
Technical Interior Ventilation not Working
Replies
8
Views
436
Scoober82
Scoober82
P
Technical 1996 Fiat Brava 1.4 12V Not starting
Replies
2
Views
563
PuntoEvoBoy
P
O
Technical FIAT Brava elx 1.6 16v Auto does not shift
Replies
0
Views
179
OZKAYA
O
V
Technical 1996 Fiat Bravo HGT overheating problem
Replies
12
Views
810
SS90
SS90
P
Technical 2000 Brava 1.6 16V revs up to 3000 RPM in neutral
Replies
5
Views
907
Kheydin
Kheydin
Back
Top