Question about 1996 Buick Skylark
I put a new radiator and hoses on this car, it had a small crack and pinhole in the plastic part of the radiator. I have never seen it run hot and isn't now, but, I haven't seen the fan come on yet, when should it run, and what cotrols it? Relay, temp switch? It runs when hooked to a battery, just don't see it coming on when the car is running,, only seeing 180 degrees at the therostat neck, heat hand stays a halfway.
Posted by Anonymous on
Electric fans are controlled through the ECM by a coolant sensor in the lock
when it registers water temp at a preset temp setting , it reports to the ECM which then activates a relay and the fans run
the set temp is close to the opening temp of the thermostat
there are 2 fuses in the circuit so check them if the fan /s is not working automatically
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Posted on Jan 02, 2017
SOURCE: 1996 buick regal over heating
This sounds normal to me..... Except "runs to hot when idling"
When you're driving about (airflow over rad) all seems fine, but when sat in traffic idling - the fans come on to cool. Is the problem that even with the fans running, temperature still goes up - and fans never turn off again?
Is this the problem?
If it is, then the coolant pump may be badly corroded, not driving efficiently, or the coolant needs flushing and replacing.
Posted on Jun 15, 2008
The low coolant sensor should be located in the passenger side radiator tank, You need to take it out and clean the sludge off of it for it to work right. Or you can just unplug it and forget about it, the light will go out and it won't cause any problems.
Posted on Mar 01, 2009
If you have changed out the relay, and disconnected the temp cooling sensor, make sure you have replaced the correct relay; I believe there is one bank of four relays located by the passenger side head lamp. If the fan is running continuously, then I would say the relay is stuck in the closed position, resulting in completing the electrical circuit, powering the fan. Have the new relay tested. You can find a wiring schematic in the Hanes manual for your make and model.
Posted on May 28, 2009
SOURCE: 1995 buick lesabre fan relay
alot of us back yard mechanics just wire it straight to the fuse box . on a fuse that is only hot when car ignition is on saving you alot of headaces
Posted on Aug 16, 2009
yes thermostats wear out. make sure your cooling fans are not running at the low temp you have. you may have a bad temp sending unit. also you gauge send ing unit could be bad.
Posted on Dec 28, 2009
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