Diagnosing volvo cooling fan issues. The Radiator Fan is not working during Normal Engine Run, but when i Turn-ON the AC, the Radiator Fan and Condenser Fan is working synchronously (Start and Stop at the same time). Try running a wire directly from the positive battery terminal (12v) to the wire going to pin 14 of the CCRM and see if that triggers the fan. So I let the vehicle idle with the a/c off, expecting both radiator fans to come on at low speed when things warmed up, and indeed they did. Already replaced fan control module, checked fuses. Do not connect the low speed side. Rad fans (well electric ones anyhow) are turned on and off by temperature of your coolant not by speed. Comment Report abuse. Radiator fan operation is control by the Powertrain Control Module (PCM) with inputs from the temperature of the coolant, which is sensed by the coolant temperature sensor, and vehicle speed which is measured by the vehicle speed sensor. Thought the fan was supposed to kick on when it reached a certain temperature then goes off once the temp drops. They are designed to only run when needed. The PCM turns on the fan through either the high or low speed fan relay. JAPAN MADE ODYSSEY … Comment Report abuse. Low speed works normally. May 4, 2005 44 0 6 49 Co. Aug 23, 2011 #3 Thanks I will ASAP, can you give me a hint on which on is #14 please? CJ: One of the biggest benefits you'll get from an electric fan is improved low-speed cooling. If it does then you know the relay is good. edit: nevermind, I see they are numbered . Also stays on when driving down the highway. Both the 50 amp high speed and 30 amp low speed fuses test good for continuity. If the coolant level is low, you need to refill the coolant to optimum levels. Buy Deepcool Tf 120S Black Colour Unleasing Radiator Fan 120Mm from Matt Blatt. My radiator fan has two speeds. SpeedFan can be used not only to adjust fan speed but to monitor temperatures as well. Then I connected my bidirectional scanner and commanded the fans to run at high speed. R. Rjovi Member. * For others such as the Valeo/Dodge fans, connect both the low and high speed circuits to the PSM controller. You should make it your daily habit to check the coolant levels in your radiator. The fan comes with SSO2 bearing and 4-Pin PWM connector. Install and set up the software. Follow these steps to get started. This fan comes pre-installed in many of the Noctua’s CPU Coolers. Failing to do so could risk your engine becoming seized. 27. DEEPCOOL TF 120S BLACK COLOUR UNLEASING RADIATOR FAN 120MM Deepcool TF 120S A high performance, low noise fan specially designed for the radiators of AIO coolers. The operation of the motor is governed by the PWM chip, that is also very important for achieving low operation speeds and low noise emissions. Verified Purchase . Most of these electric radiator fans operate in two speed modes—high or low—depending on coolant temperature. Fixed my situation where the low speed on the fan for the radiator wasn't working, directly affecting AC performance allowing correct pressure and then only the high speed fan kicking in. Switch the high speed relay and put it into the location for the low speed relay and test to see if the fan runs in low speed. 5. Helpful. Both the radiator fan and the A/C condenser fan run at low speed, but radiator fan does not run at high speed when the engine coolant temperature is above 93 °C (199 °F) Radiator fan high speed circuit troubleshooting. Vehicle speed affects this, in rough proportion to the engine effort, thus giving crude self-regulatory feedback. September 23rd, 2016 mercedes air conditioning cooling fan. Which fan is the a/c fan and which is the radiator fan? The unique technologies that this fan offers, can vastly improve the radiator’s cooling performance. As a best fan motor manufacturers, we manufacture high speed radiator fan and quality fan motor assembly for more than 40 countries, and have been applied to many models, such as Ford, Renault, Kia, Hyundai, BMW, NISSAN, TOYOTA, HONDA and so on. In this round up we will be comparing a variety of “360” sized radiators – that is radiators that support 3x120mm fans per side. Thermaltake TOUGHFAN 14 High Static Pressure Radiator Fan Now Available in Single Pack and 2-Fan Pack . Just because the radiator fan is not on does not mean that it is not working. Helpful. I tried closing programs in task manager however nothing seems to affect the fan speed. Richard. Only way you can tell the fan to cut on sooner is with a chip/eec tuner (chips suck and cost lotsa $$) , or what many have opted to do is just manually control the fan with a switch or by cutting a wire from the IRCM that will have their low speed be on at all times when the ignition is on. If your Altima is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. Start it up and you’ll get to the main window. OK so have a 2004 PT cruiser (with the lite turbo) - the radiator fan is relay actuated with 2 speeds. 8 comments. As fan motor assembly supplier in China,we … The motor of the fan also plays an important role, since the only two things in fans that generate noise are the air hitting the blades and the fan motor (including the bearing). To get high-speed-guaranteed, you'd need to jumper the radiator fan main relay in the abs relay assembly, which is right behind the radiator overflow tank. save hide report. Only diagnostics I've done so far is test the low speed fan relay (tested by switching with the starter relay, car started, so we're good). The first thing that comes to mind is your air conditioner system is low on refrigerant. I checked and re-checked all of this in hopes of a cheap and easy fix. Since this low speed will only allow a low amperage current value, it starts the fan softly, without the heavy drag you would get normally from starting a high-current motor. I.E. Sounds like the low speed fan relay inside the CCRM has blown. aah..just saw you have a 94. There is no coming back from a seized engine unless you are willing to spend a lot of money. With the fans operating properly at low speed, the ECT was decreased enough for the fans to stop, so there was no need for high-speed operation. The fan itself has a resistor on it for low - and you provide ground to either low or high to get that speed. A car's electric cooling fans are responsible for ensuring air flow over the radiator at low speed, and failure will almost always cause overheating while in traffic. 3 fans per side: Each radiator has it’s own specific review (see the links below for these). Its the most forward of the three relays in that box. Low speed radiator fan doesn't run when driving. We will test performance in Push Only (3 fans fitted) and also with 6 fans mounted in “Push and Pull”. It works Read more. share. Here you have a list of your current fan speeds in RPM as well as temperatures for all your hardware. Secondly can someone help me for i want to install RPM Tachometer Gauge, Lube Oil Press Gauge, where can i put the following sensors / gauges? The independent garage I use diagnosed a faulty fan & fought my cause with BMW to replace it under warranty. Is it a blocked vent? Not totally sure how to troubleshoot/test the other components related to this, looking for help diagnosing the problem. High speed does not work when A/C is turned on. Engine Cooling Fan Running at Constant High Speed Brand: Mercedes Models: W204 C Class, W207 and W212 E Class, GLK Class. I was having issues blowing the 50 amp fuse for the fan but now I haven’t had any issues with the fuse blowing. There are a few choices. Thanks! The PCM provides a ground to the relay's control circuit. Cause . Blown Fuse . The Relay in the TIPM (K11) labeled “Radiator Fan Low” The dual relays over by the brake master cylinder labeled “Fan Relays” on the internet (Mopar Part 56055666AB) The lack of a P069X style code being thrown led me to believe this was a unique problem with only the “high” speed part of running the fan. Only with a slight change in the fan speed, the XE 240 radiator gains much more cooling power than the Slim 240 model. Be Cool fans not only provide the airflow needed by your cooling system at low speeds but, in most cases, they also allow for the removal of a vehicle’s engine-driven fan which can result in a significant horsepower gain as well as fuel savings. Started checking things under the hood. You can also spot that, at low fan speeds, all three radiators perform almost the same – within the 50W cooling capacity range. However, since I have upgraded to Windows 10 the fan has been constantly running at the highest speed as soon as I turn on my computer. Even kicks on when its a cooler day. Remember to keep an eye on the GPU and CPU temperatures in particular. I could not locate the Radiator Fan switch? But many other issues could cause this so you need to get someone who is knowledgeable on your specific vehicle to look at it. Symptoms: The customer complaint is that the cooling fan runs constantly and that the air-conditioning is not as cold as usual. Both fans turn on if I turn AC on. Fortunately, these systems are fairly easy to diagnose in the event of failure. Fan Assembly1843124 for FORD FIESTA VI 2008-2012; FORD B-MAX 2012- ;TRANSIT COURIER 2014. Nissan Altima Radiator Fan Not Working Causes SEE NEXT: Lost Car Keys - Cost & Replacement Keys. Viele übersetzte Beispielsätze mit "low fan speed" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen. Both radiator fan & pas cooling fan replaced in July 2017 (this now only August 2018). The fan has speed in the range of 300 to 1500 RPM and it generates static pressure of 2.61 mm H2O and airflow of 54.9 CFM. Some however, are only capable of a single speed. Actually, I originally answered only single speed, but looking at the wiring diagram, it looks like it is SOMETIMES run in series with the radiator fan. BMW charged £120 to do a diagnostic test;they told my garage that the fan wasn't faulty & their computer showed no wiring defects! The fan itself works (both low and high speed when twelve volts is applied directly). If the radiator fan is not working, it’s a serious problem. Hello All, im new on this forum so please please some one help me out here, ill describe my problem: I own a 1996 eldo, my cooling fans only come up on low speed and prior to this sunday the cooling fans did come on at full speed as soon as i turn the A/C on so now i have an overheating problem no mether how hot the car is the fans will only run at low speed, i have done the following: High speed is not working. There is a radiator fan motor low speed relay and a radiator fan motor high speed relay and both are located in the TIPM (totally integrated power module). Note that this is a BAD idea. I've checked task manager and the CPU is very low, between 2 and 15%. Reviewed in the United States on August 18, 2018. Regarding two speed fans, that falls into two categories: * For Ford fans that have a low/high such as the popular Taurus setup, just connect the high speed circuit to the PSM controller. Fan kicks on about 30 seconds after vehicle is started and is extremely loud. 2010 Ford F150, Radiator fan seems to be running on high more than it should. This low speed can be used to maintain cooling at idle with minimum fan use, but this would depend on the fan speed chosen for the low speed. Read more. 5.0 out of 5 stars Ok. You can also use this fan on radiators as it is optimized for static pressure. I've been on the forums and tried a lot of what has been recommended however nothing has … I have a 1991 Toyota pickup with a 22re last August I replaced the cylinder head, timing chain, and all associated parts now I have also replaced the radiator, fan, fan clutch, water pump, and added a factory fan shroud. Airflow speed through a radiator is a major influence on the heat it loses. If your car has two fans and neither turns on, the problem is likely a blown fuse. Forward of the Noctua ’ s cooling performance extremely loud fan offers, can vastly the! 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