How the Auto Cool controllers operate:

The sensor is measuring the OUTFLOW temperature of your radiator

and then sets the fan RPM to regulate the OUTFLOW temperature you have dialed with the black knob. So if you have set the OUTFLOW temperature 10 to 20 degrees F. below your thermostat temperature you will have rock solid engine temperature. Use a laser temperature gun at the OUTFLOW to

check your regulation. Check it parked and motor at an idle.

Also keep in mind, that three things are going to effect the fan RPM.

First is your speed, second is motor loading, and outside air temperature.

Starting your engine for the first time you will NOT see the fans start.

I do not want to hear the BS term "KICKING ON." When the radiator has reached about 140 F, +/-, the fan or fans will start to turn slowly. The fan(s) will increase RPM and reach the point of regulation that you have set with the black knob. For A/C fan speed control, there is a small pot on the side of the controller that sets this fan speed. The radiator control will over ride this fan speed.

Brushless fans: If you have this type of fan, it will fibrate at low RPM unless your purchase our 7Khz HF-125 controller.

Our controllers have Soft Start that limits inrush current from starting a dc fan motor from a dead stop. This is what brand X controller boys fail to realize and why their controllers keep burning out. Auto Cool also has a cool down timer, so when you turn off the ignition, the fans will operate for under a minute.

YOU CAN REACH US VIA THE PHONE OR

EMAIL JUST ABOUT 7 DAYS A WEEK.

DARRYL THE AUTO COOL GUY

562-367-3225

If you return a controller for test or repair, please put your full information in the package with name, address, email and phone number! It really helps us getting it back to you fast!

The On Line Store Page 1 below. . . .

DIESEL RADIATOR TEMPERATURE CONTROL

I made this video of the DX-150 - how it works on the bench.

Steve installed the DX-150 in his vehicle and made this video during the process.

DARRYL QUAN TRI M16.tif

AA RIBBON.jpg

US ARMY ORDINANCE

295TH FROM GRAND ISLAND, NEBASKA 10-68 TO 19-69

Hydroxychloroquine was taken daily for a full year in Chu Lie to Quan Tri City, South Vietnam and still healthy as a horse to this day!

We have been building the Auto Cool Controllers right here in the USA starting in 2011.

AVOID OVER HEATING ROAD SIGN.jpg

BOIL OVER CAR TEXT 8-26-11.jpg

The Auto Cool Guy supplies the Standard Brass Sensor with your controller. However, if you purchase a Brass Plug Sensor or one of the Copper Inline Sensors, we do not supply the Standard Brass Sensor as the default sensor with your order.

DUE TO THE VIRUS, USPS, WILL NOT SHIP TO SAUDI ARABIA OR THIS AREA

OF THE WORLD. SHIPMENTS MAY NEED TO GO WITH UPS OR A FREIGHT FORWARDER.

PUT SIZE AND COLOR ON PAY PAL NOTES PLEASE!!!

PUT SIZE AND COLOR ON PAY PAL NOTES PLEASE!!!

BLUE OR BLACK

CASE?

BLUE OR BLACK

CASE

10 LEDS SHOW

PULSE WIDTH

BACK IN STOCK

85 AMP

NO BUZZ

100 AMP

USE WITH ANY

CONTROLLER?

FOR SMALL 4 & 6

ENGINE CARS

200 AMP

MONSTER

NO BUZZ

50 AMP

WHAT SIZE DO

YOU NEED?

WHAT SIZE DO

YOU NEED?

PUSH BUTTON

TEMP CONTROL

ONE YEAR WARRANTY ON ALL AUTO COOL PRODUCTS

Click on photo to add items to your shopping cart!

Controllers and sensors are USPS mailed priority and the tracking number and expected date of arrival may be emailed to the customer within 24 hours.

Please indicate the OUTSIDE diameter of the copper sensor you require in the Pay Pal payment, in an email, or give us a call when you place your order.

All controllers and sensors are sold with a one year warranty! We can also repair controllers that are out of warranty. We no longer support the Auto Cool II controller, it was replaced with the Auto Cool 50.

GO TO AD TO CART AND THEN CHECK OUT WITH PAY PAL
MAKE SURE YOU FILL OUT YOUR NAME AND ADDRESS ON THE PAY PAL FOR US TO MAIL YOUR CONTROLLER!!!!!

We only take Pay Pal for payment. Pay Pal is very easy to set up.