2014 gmc sierra fan stays on

This damage could cause the blower motor to stop working, or to actually stick on and never shut off. You can check this by accessing the panel behind the fuse box, and looking for the resistor module. Once you locate the resistor module, inspect the metal connector. If it needs to be replaced, you must cut the connector, splice it, and replace ...

2. Daytime running lamps stay on while the car is off. Another symptom of a potential problem with the daytime running lamp module are daytime running lamps that stay on even when the vehicle is turned off. Most daytime running lights are wired to turn off when the vehicle is no longer in motion, or when the key is removed from the ignition.3. Warm Air is Blowing. When you turn on the air conditioning, you expect to feel cold air pour out. However, when the AC pressure switch goes bad, warm air might be all you get. However, this problem is also caused by low refrigerant levels, which should be checked regularly. 4.Coolant temp sensor replacement Thermostat & Coolant temperature sensor replacement: Yukon, Tahoe, Sierra, Silverado, Escalade GMhttps://youtu.be/7mJF5LQ3oPs...Same thing happen to my gmc terrain car.. My fan keep on working after i turn off my car, my AC doesn't work well, also the relay from the fuse box was getting hot.. i went to the workshop and they just reset something from the computer and things goes well...Here's how: 1.) Click on your Avatar/icon at top-right, go into “ Account Settings ”, then “ Vehicle Details ” and enter something like the following: 2011 Equinox 1LT V6 3.0L FWD 170.5k miles. That’s my Nox: year, make, model, trim, engine, front-wheel drive (or all-wheel drive), and current miles on the odometer.Hey ladies and gents, I have a 2016 camaro ss1 also. I have been having the same issue to where my fan stays running even after I turn it off. At first I replaced the sensor and was fine for like 4 months then the issue came up again. I would disconnect the battery and it would go away.If you turn off the engine with the steering wheel turned or turn the steering wheel after turning off the engine, the steering wheel lock can bind and prevent you from turning the ignition. How To Fix It: Fortunately, this is an easy fix. Just turn the wheel back and forth until the ignition cylinder is freed. 03. of 05.We show how to diagnose your A/C not blowing cold air on your 2014-2019 chevrolet Silverado Sierra tahoe or suburban as we go step by step to show how to nar...

11,280. Asked by dragonflyoffshore Nov 27, 2012 at 11:42 AM about the 1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB. Question type: Maintenance & Repair. o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so.Acadia77000 · #7 · Nov 3, 2018. Anybody figure it out. My 2014 GMC Acadia Just started do the same exact thing!! Temp gauge drops to straight down, Fan blowing full and loud, A/C still Blows but Not cold and the recirculation button flashes. Kind of odd that it is the 2014's that have started doing this.Before we dive into the issues, let’s take a glance at the history of the Chevy 5.3 and what vehicles you might find them in. The 5.3-liter displacement has remained the same for over 20 years now. It was first introduced in 1999 as a truck variant of the LS engine found in Chevrolet Corvettes and Camaros. Though many of the parts from an LS ...May 19, 2012 · 2008 Sprinter 2500 170 - camper van. 2001 Suburban LT 2WD, 5.3, V8 311,000 miles, leaks oil now at rear main seal stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u-joints; rear diff new bearings; 2nd fuel pump and fpr; ABS pump circuit solder reflowed; 4th water pump; 2nd fan clutch; new front wheel bearing units; new front and rear shocks; 1000# rear air springs, Brake fluid ... 2014 GMC Sierra 1500 V6. Both cooling fans run at full speed the entire time the truck is running and for about 5 mins after I turn it off. Temp gauge stays at 160 degrees all the time. A/C compressor … read more

But check for why it is happening: Check coolant level. Check Engine Oil Level. Make sure right grade oil is being used. These factors can cause excess heat in the engine that the computer is trying to cool off from the coolant. 2017 Colorado Z71 3.6L V6 4WD Extended Cab Summit White. 2000 Pontiac TransAm WS6 5.7L V8 LS1 6 Speed Manual RWD Black.It’s usually normal for a fan still running when car is off for several minutes. This phenomenon cools down the generating engine’s heat, extending the engine’s lifespan. However, in case of the fan running when car is off for a long time, there are problems with the cooling system. Check related components, such as coolant level ...check if a/c is on this would activate fans to cool condenser when parked. you would need to look at wire schematic to be sure for that model, very likely. 5 people found this helpful. Mark helpful. 2016 Chevrolet Silverado 1500 LT 4WD. 2005 Chevrolet Silverado 1500. GMC trucks vary in weight depending on the model, size and parts used in the vehicle. For instance, the Sierra 1500 Denali with a short box truck bed and standard engine weighs 5,042 pounds, but the Sierra 2500HD with a long box bed and mor...

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Leave the key in position for about 10 – 15 minutes. Step 3: Check the anti-theft light again. If it’s no longer blinking, turn the key back to the Off position and allow it to set for a minute or two. This gives the system time to reset or you won’t be able to start your car. Step 4: Start the engine.Oct 30, 2021 · When the ECU doesn't get a signal from the ECT, it doesn't know if the coolant is too hot or not and so as a failsafe, it runs the fan at 100% to avoid overheating. The dash temperature gauge is controlled by the temperature data on the vehicle's CAN bus and since that signal is "0" the gauge reads the minimum which is 160F. Jan 2, 2011 · View All ». Question about 2006 GMC Sierra. 1 Answer. I have a 2006 GMC Sierra. The heat/defrost blower fan stays on when the ignition is turned off. The only way to stop it is to pull the fuse. Posted by hunter397 on Jan 02, 2011. Want Answer 0. Clicking this will make more experts see the question and we will remind you when it gets answered. nickpohlaandp Discussion starter · #11 · Nov 7, 2016. The part I bought is the blower control module that goes next to the blower motor. ACDelco 15-81638 GM Original Equipment Heating and Air Conditioning Blower Control Module. 4.5 out of 5 stars 38 Reviews. Price: $28.98 Free Shipping for Prime Members.We show how to diagnose your A/C not blowing cold air on your 2014-2019 chevrolet Silverado Sierra tahoe or suburban as we go step by step to show how to nar...

CTS Third Generation Forum - 2014-2019. 2014-2019 CTS General Discussion 2016 temp gauge not working, radiator fan runs ... When driving the coolant temp would drop to low and the fan would stay on contently and during this A/C wouldn't work, Auto Stop/Start would be disabled.Tips On GM Car Seat Repair. A common problem in many GM vehicles is having the heated seats not working. If the heated seats aren’t warming and turn off after being turned on in your Chevy, GMC, Buick, or Cadillac, the computer module might need a reset.Learn how to repair your heated car seat by resetting the computer module by …Jun 29, 2015 · This damage could cause the blower motor to stop working, or to actually stick on and never shut off. You can check this by accessing the panel behind the fuse box, and looking for the resistor module. Once you locate the resistor module, inspect the metal connector. If it needs to be replaced, you must cut the connector, splice it, and replace ... Oct 30, 2021 · When the ECU doesn't get a signal from the ECT, it doesn't know if the coolant is too hot or not and so as a failsafe, it runs the fan at 100% to avoid overheating. The dash temperature gauge is controlled by the temperature data on the vehicle's CAN bus and since that signal is "0" the gauge reads the minimum which is 160F. TCS on a car stands for Traction Control System. The traction control systems detect when the wheels are about to lose traction. When the system detects this, it intervenes by reducing engine power to the wheel. This helps the car to maintain traction and stay on the road. If you see a TCS light on your dashboard, it means there is an …Mar 14, 2022 · What Does Code P0128 Mean? GM P0128 definition: Coolant Thermostat Temperature Below Regulating Temperature. Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed withing the next month to prevent the potential for overheating. Diagnosis: It is important to complete the entire ... However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1. Blown fuse. The AC blower motor in GMC Sierra 1500 needs electricity to work. In case of a faulty fuse, the circuit is interrupted and the motor can not work.2014 GMC Sierra 1500 temp gauge inop at times and cooling fan staying on. I have a 2014 GMC Sierra 1500 5.3 and my temp gauge will randomly drop as if the engine is cold. When it does this, the cooling fans will run on high and continue to run even after the switch is turned off. The only way I have been able to reset it has been to pull the ... When the PCM is commanding a fan relay ON, the voltage of the control circuit should be low, near 0 volts. When the PCM is commanding a fan relay OFF, the voltage potential of the control circuit should be high, near battery voltage. The PCM monitors the relay control circuits for the following conditions: • Short to ground.

488 posts · Joined 2009. #1 · May 8, 2014 (Edited by Moderator) So I start my '14 Sierra this morning and it sounds louder than usual. The fan seems like it's loud and doesn't shut off. Last night I had to take out and unclip my air filter in order to get to my headlight assembly.

Engine temperature rises and fan stays on. My 2015 GMC Sierra 1500 only has 50,150 miles on it, and started well under 50,000. It looks like the leak is from upper contact points of radiator and frame. I have come to find out that GMC has put a notice out on this issue and put a recall/repair out on the 2014 GMC Sierra 1500 for the same issue.The most common causes for AC not cooling properly in GMC Sierra 1500 are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty …Jan 5, 2016 · Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. 1. Engine running hot. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal ... 2014 Equinox LTZ FWD 3.6L. V-6 ... Rad. fan stays on for 5 minutes after shutting engine. Any thoughts? ... Enjoy banner ad-free browsing with GMC Terrain, Equinox ...1999-2007 GMC Sierra Classic; 2000-2006 GMC Yukon, Yukon Denali, Yukon XL; 2002-2007 GMC Envoy, Envoy XL, Sierra Denali Classic; 2004-2005 GMC Envoy XUV; A malfunctioning ABS module can also engage at inappropriate times or even not engage during sudden braking. This can lead to accidents, and it is important to fix …May 1, 2021 · Yes, actually it did. When the sensor fails, the radiator fan runs at full speed like the car is overheating. When you shut off the car, the fan continues to run at full speed for at least 15 minutes. It drains the battery. You drain your battery completely dead too many times and you need to replace it. Oct 30, 2021 · When the ECU doesn't get a signal from the ECT, it doesn't know if the coolant is too hot or not and so as a failsafe, it runs the fan at 100% to avoid overheating. The dash temperature gauge is controlled by the temperature data on the vehicle's CAN bus and since that signal is "0" the gauge reads the minimum which is 160F. This damage could cause the blower motor to stop working, or to actually stick on and never shut off. You can check this by accessing the panel behind the fuse box, and looking for the resistor module. Once you locate the resistor module, inspect the metal connector. If it needs to be replaced, you must cut the connector, splice it, and replace ...We show how to diagnose your A/C not blowing cold air on your 2014-2019 chevrolet Silverado Sierra tahoe or suburban as we go step by step to show how to nar...

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Press and hold down the reset button (sometimes located under the steering wheel) until the low-pressure light blinks three times. Release the button. Start the vehicle and let it run for 20 minutes to let its computer recalibrate each sensor. Turn off …This video covers the part that needs to be replaced when your GM vehicle marks no engine temperature on the dashboard. Other symptoms may be the radiator fa...What I mean by that, is the key is turned off and the ignition voltage is removed, however, it is replaced by the Retained Power voltage. Open the door, and all RP voltage, included this backfeed, is removed. You need the find the component that is "leaking" this RP voltage. It could be the ignition switch.However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1. Blown fuse. The AC blower motor in GMC Sierra 1500 needs electricity to work. In case of a faulty fuse, the circuit is interrupted and the motor can not work.For the sake of this article, let’s assume that you need to have a professional fix the Malfunctioning Indicator Lamp. Here are a few problems you might be dealing with and the approximate repair costs. Tighten or replace a loose or broken gas cap: $25-$75. Replace malfunctioning oxygen sensor: $150-$450.Jefesito 477 subscribers Subscribe 58K views 3 years ago This video covers the part that needs to be replaced when your GM vehicle marks no engine temperature on the dashboard. Other symptoms may...Blower motor resistor is most common ($20-$70) it controls the blower motor fan and speeds or fan relay fuse (usually under the hood) If it's not either then the blower itself is bad. You can pull the motor and apply 12volts to it to test, if it spins then the resistor. Oct 02, 2009 • 2001 GMC Sierra Crew Cab.Radiator Fan Won't Turn Off 2014-19 GM Trucks - Temperature Sensor & Thermostat Previously Replaced - YouTube. 0:00 / 1:57. Radiator Fan Won't Turn Off 2014-19 …When all of the gauges or warning lights in your car stop working at once, the problem is something that all of the gauges and lights share in common. Check the fuses first. The fuse may be labeled gauges, clusters, or something similar. This fuse should have power on both sides with the ignition in the on position.Jan 6, 2009 · Blower motor won’t shut off Blower motor keeps running after car is shut off. If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged. Coolant temp sensor replacement Thermostat & Coolant temperature sensor replacement: Yukon, Tahoe, Sierra, Silverado, Escalade GMhttps://youtu.be/7mJF5LQ3oPs...2014 and newer chevy silverado 5.3L. The radiator fan stays on when the engine is off. Fan runs faster than normal and run when engine is cold. Replace the t... ….

Send fan mail to authors; Thanks to all authors for creating a page that has been read 933,875 times. Reader Success Stories. Fred Brayboy. Sep 2, 2017 "I learned that I had two fuse box in my truck one inside and one under the hood. I will check the problem tomorrow."The GMC Sierra SLE offers more standard features than the GMC Sierra; this truck is the mid-level trim of the Sierra model. The GMC Sierra family contains five Sierra truck models. In mechanical layout and engineering, the GMC Sierra mirror...jhs914 Discussion starter. 162 posts · Joined 2017. #7 · Jan 4, 2023. It's the thermostat. It sticks open and the engine computer senses an anomoly and signals the radiator fan to run continously. Replacing the thermostat fixed my problem. 2017 Canyon SLE 3.6 Crew Cab Short Bed/2WD. Reply.Nov 7, 2019 · Hello y'all, I've been a lurker for a little while, but finally had a need to make an account and post a question. I bought a 2014 GMC Sierra 1500 last month and have had the usual "new to you" bug fixes. Anyway, I have had an issue the past week with the temperature gauge either not moving from ... Top Answer. The most common problem with the cooling fan in a 2014 Chevy Silverado is that the fan stops working. When this happens Your radiator may not get adequate airflow and that can lead to higher than expected temperatures in it. That decreases the overall cooling capacity of the system and that can lead to Your engine overheating.If you turn off the engine with the steering wheel turned or turn the steering wheel after turning off the engine, the steering wheel lock can bind and prevent you from turning the ignition. How To Fix It: Fortunately, this is an easy fix. Just turn the wheel back and forth until the ignition cylinder is freed. 03. of 05.Welcome back to the channel! In this video Sean goes over why the radiator fan won't turn off on your 2014 - 2019 Chevy Silverado or GMC Sierra. Thermostat...Blower motor resistor is most common ($20-$70) it controls the blower motor fan and speeds or fan relay fuse (usually under the hood) If it's not either then the blower itself is bad. You can pull the motor and apply 12volts to it to test, if it spins then the resistor. Oct 02, 2009 • 2001 GMC Sierra Crew Cab.BRIAN 1. Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. These conditions may be caused by a blower motor control module failure. This failure may occur when the vehicle is operated in ambient temperature conditions of-23 °C (-10 °F) or below. 2014 gmc sierra fan stays on, 2 Answers. Have your thermostat checked. It may be stuck open. 7 people found this helpful. check if a/c is on this would activate fans to cool condenser when parked. you would need to look at wire schematic to be sure for that model, very likely. 5 …, Nov 27, 2020 · 2011 GMC Sierra 5.3L; Cooling fans running too much. Where the engine temperature reliably stays at 195F/90.5C the cooling fans will come on and stay on for long periods (20 mins) regardless of outsid … read more , Explore GMC Vehicle's Owner Manuals and Guides to learn more about your vehicle and its many features. manuals ... You are currently viewing GMC.com (United States). Close this window to stay here or choose another country to see vehicles and services specific to your location. Continue VEHICLE SUPPORT VEHICLE SUPPORT. SUPPORT HOME;, 2005 GMC Z71 1500, W/ Dual digital climate controls. While driving today blower motor Kicked out, I turned up the fan speed and it kicked back in. Got to my destination, turned off the key and the blower kept running. Took my climate controls out and the fan continued to work, ended up pulling the 40amp fuse in the engine bay to shut it off so ..., Jan 8, 2022 · But check for why it is happening: Check coolant level. Check Engine Oil Level. Make sure right grade oil is being used. These factors can cause excess heat in the engine that the computer is trying to cool off from the coolant. 2017 Colorado Z71 3.6L V6 4WD Extended Cab Summit White. 2000 Pontiac TransAm WS6 5.7L V8 LS1 6 Speed Manual RWD Black. , 18 posts · Joined 2022. #1 · Apr 7, 2022. Hello all. I recently bought a 2017 and after driving it about 1500 miles (74500k on vehicle), Something strange started happening. When I got to work yesterday, I noticed the fan running after I shut the engine off. I opened the hood, checked the coolant it was good. Felt the hoses they were luke ..., Press and hold down the reset button (sometimes located under the steering wheel) until the low-pressure light blinks three times. Release the button. Start the vehicle and let it run for 20 minutes to let its computer recalibrate each sensor. Turn off …, Plug an OBD-II scanner into your vehicle’s OBD port and reset it to clear the check engine light. Disconnecting and reconnecting your battery will restart your vehicle’s computer and clear the light. Drive an older vehicle around for a few days after repairs. The light will go off on its own once the computer resets., Jun 3, 2021 · Anyway, I have a 2014 silverado lt with a 4.3. AC has always been ice cold. Today I took it on a road trip about 500 miles and 3/4 of the way there the ac started to get warm then get cold if I got on the throttle. , Cars & Trucks - By Owner "gmc sierra" for sale in San Luis Obispo. see also. SUVs for sale classic cars for sale electric cars for sale ... 2014 GMC Sierra 1500 Z71. $25,700. Nipomo 2005 GMC Sierra 2500 HD Regular Cab Utility/Work Truck. $8,500. San Luis Obispo 2004 GMC Sierra 1500 4x2 SLE Regular Cab ..., ... Fan Accessories · Race Heat Protection · Race Hose Clamps · Race Intercooler Cores ... stay up to date on all the latest news, products and events. Newsletter., It can also be caused by a faulty oil pump, pickup tube, clogged oil filter or an internal oil leak. It could be a false alarm, caused by a bad oil pressure sensor or faulty wiring. As said, there are actually two scenarios when the oil pressure light illuminates., WHY RADIATOR FAN STAYS ON ALL THE TIMEIf your radiator fan stays on all the time when the car is started or with the ignition being on we will explain what i..., Left Engine Cooling Fan Blade fits 2005-2014 GMC Yukon,Yukon XL 1500 Sierra 1500 Sierra 1500,Yukon. ACDelco - Left Engine Cooling Fan Blade fits 2005-2014 ..., Do you have a Cherolet or GMC vehicle with a blower motor that won't turn off even after removing the key? Well then this video is for you., Anyway, I have a 2014 silverado lt with a 4.3. AC has always been ice cold. Today I took it on a road trip about 500 miles and 3/4 of the way there the ac started to get warm then get cold if I got on the throttle., Reasons for fan activation. Conditions for turning on. Failure of the coolant temperature sensor or damage of its wiring. Engine running in emergency mode. Defective relay of fan switching. Short circuit of wires to “ground”. Engine running, the fan may turn off if contact is made/missed. ECU malfunction., May 22, 2009 · If that is your problem, you have an AC clutch that is sticking; or, the AC relay is staying operated. If this problem stays on all the time, or the next time it happens, remove the AC relay. If the AC stops being cold, replace the AC relay. If the AC cold continues, you have an AC clutch that won't release. , staying at 160 and fan stays on after vehicle shuts down. ... 593 satisfied customers. 2014 GMC Acadia with 90k. Temp gauge was reading hot; around. 2014 GMC Acadia with 90k. Temp gauge was reading hot; around 230. Coolant level is normal. Engine can be touched. No steam or leaks visible. ... 2008 GMC Sierra 2500 HD., To test, turn the AC on. Press and hold the AC button at the same time as you press and hold the recirculate button. Hold for 5 to 8 seconds. If this is the cause of the issue, the AC will kick on and you will hear the compressor clutch engage. This should also reset the sensor and correct the issue. Posted on Mar 28, 2011., I have a 2016 Colorado 3.6 with 231,200 miles on it. A week ago my radiator fan started coming on as soon as I started the truck and would stay on while driving. Temperature never got over 160. When I shut the engine off the fan would stay on for about 5 minutes and then shut off. Any help diagnosing this would be greatly appreciated., 17 Answers. Improper head unit wiring If the main power wire for the head unit is connected to a power source that is always hot, the radio won't ever turn off. Fix: rewire the radio to receive power from a source that is only hot when the ignition is in the accessory or run position., Fan stays on after shutting off truck, engine light on and temp gauge all the way down. Unable to decipher where the relay for the fan is at?! 2014 gmc sierra. Mechanic's Assistant: Is the check engine light blinking or flashing, or is it solid?, What Does Code P0128 Mean? GM P0128 definition: Coolant Thermostat Temperature Below Regulating Temperature. Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed withing the next month to prevent the potential for overheating. Diagnosis: It is important to complete the entire ..., JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. 2011 GMC Sierra 5.3L; Cooling fans running too much. Where the engine temperature reliably stays at 195F/90.5C the - Answered by a verified GM Mechanic., May 4, 2023 · The average cost range for replacing a Radiator Fan Relay of a Chevrolet Silverado falls between $39 and $46. 2. Replace the Temperature Sensor. Often, the problem lies in the temperature sensors. Unplug the sensors and check if the fan will stop. If it stops, then the sensors are faulty and need replacement. , 2014 GMC Sierra 1500 V6. Both cooling fans run at full speed the entire time the truck is running and for about 5 mins after I turn it off. Temp gauge stays at 160 degrees all the time. A/C compressor will not come on while this is happening. This is an intermittent issue. Mechanic's Assistant: Have you checked the Freon level? Yes, freon is good. , Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite., Asked by GuruKC5WZ Dec 07, 2019 at 02:07 PM about the 2014 Chevrolet Silverado 1500 LT RWD. Question type: Maintenance & Repair. My coolant temperature on a 2014 Chevy. Silverado 1500 stays on 160 degrees and the. Radiator fan runs on high after the engine is. turned off. , 2014 GMC Sierra 1500 temp gauge inop at times and cooling fan staying on. I have a 2014 GMC Sierra 1500 5.3 and my temp gauge will randomly drop as if the engine is cold. When it does this, the cooling fans will run on high and continue to run even after the switch is turned off. The only way I have been able to reset it has been to pull the ..., Hello y'all, I've been a lurker for a little while, but finally had a need to make an account and post a question. I bought a 2014 GMC Sierra 1500 last month and have had the usual "new to you" bug fixes. Anyway, I have had an issue the past week with the temperature gauge either not moving from ..., CTS Third Generation Forum - 2014-2019. 2014-2019 CTS General Discussion 2016 temp gauge not working, radiator fan runs ... When driving the coolant temp would drop to low and the fan would stay on contently and during this A/C wouldn't work, Auto Stop/Start would be disabled., Dec 15, 2011 · The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds.