Fan question????
#1
Fan question????
It's twice now while driving on the highway I noticed my temp gauge rise above the half mark. I kicked in max heat to drop temp back to below half. While on small streets, the temp gauge is okay. I've replaced the thermostat last week because it happened a few days prior to replacement. Today I idled the motor for 15min to get any bubbles out and noticed the heat was not hot. Gave it gas and heat kicked in and stayed hot. Also noticed the fan did not kick on. Played with the fan controls and noticed that only in defrost that the fan will kick in. All other settings such as feet, face/feet, face, defrost/feet will not trigger the fan. Is this normal or do I have a problem? Thanks.
#3
When you say defrost what you mean is the radiator fans only run when the AC compressor is on. Defrost mode automatically engages the AC compressor.
You should replace the temp sensor for the ECU. There are 2 temp senors. The other one is for the temp gage in the cluster.
DW
You should replace the temp sensor for the ECU. There are 2 temp senors. The other one is for the temp gage in the cluster.
DW
#5
I have the manual controls. And as what DW said, switching to Defrost will engage the AC and kick the fan on. It may be a bad switch or temp sensor. Heat blows from all controls when each is activated. Just trying to figure out why the fan does not kick on even after 15mins of warm-up.
#7
I too have a question "fan question." I just recently replaced the alternator in my 95, and to do that I removed the radiator along with the fan attached to it. I never really looked at the fans before, but are they supposed to run all the time when the car runs, or just intermittently when the car needs em?
I just started the car after putting everything back together and have not seen the fans run yet. Got a little worried, so I shut it down and came to ask the pros here.
I just started the car after putting everything back together and have not seen the fans run yet. Got a little worried, so I shut it down and came to ask the pros here.
#8
To check if the fans are working turn on your AC or defroster.
#9
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Don't just replace the ect measure it with a simple ohm meter to see if that's indeed your problem. Easy to do any might save you the expense and work to replace a part that isn't causing your issue. Search on here for a table of the resistance values.
That would be working smart, not blindly.
That would be working smart, not blindly.
#11
#12
I too have a question "fan question." I just recently replaced the alternator in my 95, and to do that I removed the radiator along with the fan attached to it. I never really looked at the fans before, but are they supposed to run all the time when the car runs, or just intermittently when the car needs em?
I just started the car after putting everything back together and have not seen the fans run yet. Got a little worried, so I shut it down and came to ask the pros here.
I just started the car after putting everything back together and have not seen the fans run yet. Got a little worried, so I shut it down and came to ask the pros here.
#13
It's twice now while driving on the highway I noticed my temp gauge rise above the half mark. I kicked in max heat to drop temp back to below half. While on small streets, the temp gauge is okay. I've replaced the thermostat last week because it happened a few days prior to replacement. Today I idled the motor for 15min to get any bubbles out and noticed the heat was not hot. Gave it gas and heat kicked in and stayed hot. Also noticed the fan did not kick on. Played with the fan controls and noticed that only in defrost that the fan will kick in. All other settings such as feet, face/feet, face, defrost/feet will not trigger the fan. Is this normal or do I have a problem? Thanks.
#14
Oh cool, thanks guys! So far the engine temp in my car hasn't gone too high or anything, so far it all seems good.
WesCTR: Maybe, but this was my first time delving into it. I had to unscrew the compressor and lower it, and thought it would just give me more room to work and get my hands in there. The space is kinda cramp down there as you know.
Also had a little confusion with the spacer that comes on the alternator in one of the mounting ears, but that should probably saved for a different thread (although I don't have permissions to start a new thread yet).
WesCTR: Maybe, but this was my first time delving into it. I had to unscrew the compressor and lower it, and thought it would just give me more room to work and get my hands in there. The space is kinda cramp down there as you know.
Also had a little confusion with the spacer that comes on the alternator in one of the mounting ears, but that should probably saved for a different thread (although I don't have permissions to start a new thread yet).
#15
Last couple days the engine temp climbs fast from startup to operating level which is below the middle. When gas applied, heat gets hot. When idle, heat goes warm or cool/cold. Should I replace Autozone tstat with OEM tstat? Waterpump?
#17
#18
I still think air in the system is your problem. My second guess is that the impeller blades on the water pump have corroded off. The thermostat comes in at guess # 10 or 11.
#19
Whoah. Does that like even happen on Maximas?
The water pump unit is a pretty tough all steel/aluminum unit. It's chain driven so it's got hot motor oil running on one side of it with hot anti-freeze on the other. The fluids never mix until the water pump gasket starts to slowly fail.
DW
#20
Whoah. Does that like even happen on Maximas?
The water pump unit is a pretty tough all steel/aluminum unit. It's chain driven so it's got hot motor oil running on one side of it with hot anti-freeze on the other. The fluids never mix until the water pump gasket starts to slowly fail.
DW
The water pump unit is a pretty tough all steel/aluminum unit. It's chain driven so it's got hot motor oil running on one side of it with hot anti-freeze on the other. The fluids never mix until the water pump gasket starts to slowly fail.
DW
#21
I mean sheesh. That's bad.
DW
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