replaced cooling fans and they wont turn on,

145

Asked by Sep 11, 2014 at 03:28 PM about the 2006 Buick Lucerne CXL V8

Question type: Maintenance & Repair

radiator fan went out on way home from work, replaced fans and they wont turn on.

7 Answers

10

Probably was nothing wrong with the radiator fan(s). Usually it's either a blown fuse or a relay that has gone bad. Oddos of both fans dying at the same time are unlikely. Look on the fuse block and see if there is a relay marked "cooling" and temporarily bypass that to see if they come one. If not, it could also be the temperature sensor is out because the sensor tells the fan that "it's hot in here, can you give me some air?"

1 out of 1 people think this is helpful.
145

The car has power to both cooling fan1 and cooling fan2 relay's under the hood. I jumped the relay terminal 87 to 30 to manually turn them on and still nothing. I pulled the power plug from the motors and there getting no power at all. I don't think it's the coolant temp sensor because the gauge on the dash board still works and I was told there is only one temp sensor in this car. I've checked all cooling fan related fuses and all appear to be good. I'm lost as to what it could be. Maybe some fried wiring somewhere?

2 out of 2 people think this is helpful.
145

I discovered a third relay for the cooling fans. I jumped that relay plus the cooling fan 1 relay and the fan kicked on but if I put the relay's back in I get nothing. I tried swapping relay's around with known good one's but still nothing.

2 out of 2 people think this is helpful.
145

do you know were it is at? coolant temp sensor

4 out of 4 people think this is helpful.
145

coolant temp sensor under egr valve. replaced tell you Monday how it goes.

1 out of 1 people think this is helpful.
145

coolant fans still wont turn on, fuses are good relays are good. any other suggestion?

5 out of 5 people think this is helpful.
10

Plese let me know if you get this problem solved.i also have this issue and I am problem shooting the wiring.

Your Answer

Add photo

Related Questions

Lucerne

Looking for a Used Lucerne in your area?

CarGurus has 3,027 nationwide Lucerne listings starting at $1,848.

ZIP:

Search Buick Lucerne Questions

Buick Lucerne Experts

#1 seastorm709
seastorm709
Reputation 570
#2 jeffsbuick
jeffsbuick
Reputation 560
#3 DrakeTJ
DrakeTJ
Reputation 550
View All

Related Models For Sale

Used Buick LaCrosse
308 Great Deals out of 22,572 listings starting at $1,100
Used Chevrolet Impala
795 Great Deals out of 34,381 listings starting at $799
Used Buick LeSabre
11 Great Deals out of 2,343 listings starting at $1,795
Used Chevrolet Malibu
1,003 Great Deals out of 85,673 listings starting at $1,995
Used Cadillac DTS
62 Great Deals out of 1,794 listings starting at $2,500
Used Chrysler 300
404 Great Deals out of 22,148 listings starting at $1,000
Used Honda Accord
812 Great Deals out of 81,598 listings starting at $899
Used Toyota Camry
1,101 Great Deals out of 96,247 listings starting at $1,250
Used Dodge Charger
356 Great Deals out of 29,613 listings starting at $2,475
Used Buick Park Avenue
511 listings starting at $1,400
Used Ford Taurus
255 Great Deals out of 20,464 listings starting at $1,500
Used Nissan Altima
1,085 Great Deals out of 82,542 listings starting at $670

Used Cars For Sale

2007 Buick Lucerne CXL V8 For Sale
51 listings starting at $3,950