Rad fans kicking late

[mbba]

hi all, i have camry 96 and have a problem that my rad fans dont go on only when the temp. reading is above 3/4 then it comes on.... i changed the temp switch below on the rad but still same, help needed...thanks

[LynchburgCSI]

SEARCH around the forums.... common problem. If you can't find any answers, let me know. to TN!

[ULAWE]

Originally Posted by mbba

hi all, i have camry 96 and have a problem that my rad fans dont go on only when the temp. reading is above 3/4 then it comes on.... i changed the temp switch below on the rad but still same, help needed...thanks

I had the same problem! It caused my engine to overheat like hell. I will post pics soon on how to make them both spin when the engine is turned on.

Step 1:
turn off the engine go under the hood.
Step 2:
Driver side radiator should have this power connection

Step 3:
Disconnect that, and turn the car on without the engaging the engine

wow my hand is big lol

[mbba]

my fans spin but spins to late when the guage is above 3/4 , if in highway then its always half but when i stop in stop sign then starts climbing to 3/4 then stops there when the fan kicks...

[LynchburgCSI]

ULAWE... that's just sidestepping the problem.

MBBA... Searching SIMPLE terms is usually what helps. I just searched the word "fans" and got some hits. Take a look. (You might also want to try other words like "overheat".)

Solara Radiator Fans
Temperature Gauge Rises??? Please respond
Only high speed radaitor fan working
Overheating: becoming an issue

IMO, this sounds like a sensor/electrical problem. But in this case it's beyond my skills to really call it anything.

[mbba]

i think i found the problem of fan running late temp. above 3/4 guage, but problem i need solution ...... when i run the car at normal temp thats 1/2, stoped and checked the radiator heat with my hand , the upper was very hot and the lower was hot not that much like upper.....that means the temp switch is not starting untill the lower is real hot meaning by that time the temp in upper rad is already near boiling 3/4..... any ideas please, before i start changing the rad....thanks all

[fenixus]

sounds like a thermostat problem. I would suggest replacing it with a new OEM one with new gasket.

I think the difference in coolant temperature between upper and lower hose should be small, maybe 10F degrees or even less once the thermostat is opened fully...

[mbba]

thanks to all, i got my problem fixed, it was the thermostat , i removed it and fixed the housing without the thermostat and temp was normal and the fans kick at 1/2 guage.....i hope there is no problem driving with out the thermostat,is there?

[Mister_Perkins]

LOL .. dude , put that thermostat in there!

[Chris Crash]

Yeahhhhh without the tstat it will never get to normal operating temps. I have this problem on my 94 right now, tstat is either stuck open or missing.

Gotta fix it...one day...

[Mister_Perkins]

you getting crappy fuel mileage?

[csaxon]

What's the average air temp in the UAE? Do you ever need the heater?

[mbba]

never use heater here

[csaxon]

That's what I thought. You don't need the thermostat, but I'd replace it anyway.

[Mister_Perkins]

running a vehicle without a thermostat can cause a hot spot in the coolant system that can lead to a blown head gasket.