Dodge charger blend door actuator - 1. Strange Sounds. As the blend door actuator fails, you could hear a variety of noises. When first starting the climate control system, you may hear knocking noises. There could also be a clicking sound coming from the dashboard area. These sounds could be faint or loud, and they can be repetitive or constant.

 
A Dodge Grand Caravan HVAC Air Door Actuator Replacement costs between $264 and $280 on average. Get a free detailed estimate for a repair in your area. ... the actuators and blend doors require the instrument panel to be removed, and the HVAC central housing and ducts separated to complete this repair. This is a very in depth repair that .... Sylvan boat accessories

463 posts · Joined 2010. #1 · Dec 22, 2014 (Edited) I have a 2010 Challenger with only 20,000 miles. I suddenly started having blend door actuator problems after using my defroster for the first time this year. It is clicking (slipping gears) when the temp control is moved to the cold settings. Disconneted the negative cable and it is still ...Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector and remove the actuator from the vehicle. ... A forum community dedicated to all Dodge Charger owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, Hemi Mopar power, power … Dorman HVAC Door Actuator 604-024. Part # 604-024. SKU # 469637. Limited-Lifetime Warranty. Check if this fits your 2008 Dodge Charger. Notes: HVAC Mode Door Actuator. PRICE: 32.49. $3249. Free In-Store Pick Up. All actuators are the same part I am changing the driver side blend doorEquip cars, trucks & SUVs with 2011 Dodge Charger A/C Heater Blend Door Actuator from AutoZone. Get Yours Today! We have the best products at the right price.Buy Now!New Temperature Blend Door Actuator from 1AAuto.com http://1aau.to/ib/1AHCM00011This video shows you how to install a new blend door actuator on your...want to buy some merch?! hit the link below 👇🏾👇🏾https://mybarrettgang.com/ everyone go subscribe to all my brothers youtube channels asap!!( click the li...The four door actuators: There are two blend-air door actuators. They blend hot/cold to match temp settings. One on driver and one on passenger side for dual zone ATC. None on passenger side if single zone MTC. There's one mode door actuator on driver side. It directs the air to the selected vents (dash, floor, windshield).Buy 604-024 HVAC Blend Door Actuator - Compatible with Chrysler 300/Town and Country, Dodge Challenger/Charger/Grand Caravan,Heater A/C Temperature Actuator Replaces 68033337AA, 68238243AA, 68031977AA: Heater Blend Door Levers - Amazon.com FREE DELIVERY possible on eligible purchasesIt fits Dodge Charger, Dakota, Grand Caravan. It also fits Ram C/V, Dakota. Affordable, reliable and built to last, Mopar part # 68033337AA Mode Blend Door Actuator stands out as the smart option. MoparPartsGiant.com is your prime online source with the biggest and best selection of genuine Mopar parts and accessories at giant discounted prices.Number Of Mounting Ears: 3. Your Dodge Charger's blend door actuator, also known as the HVAC actuator, controls the position of the blend door to adjust the temperature of air that flows into the cabin of your Charger. When the blend door is opened or closed, this controls the temperature of the air by directing air from the blower motor over ...Dorman HVAC Door Actuator 604-004. Part # 604-004. SKU # 548478. Limited-Lifetime Warranty. Check if this fits your 2007 Dodge Charger. Notes: HVAC Mode Door Actuator. HVAC Recirculation Door Actuator. PRICE: 33.99.Buy labwork HVAC Blend Door Actuator Replacement for 2008-2016 300 & Town and Country, Grand Caravan, C/V, ... 2008-2019 Dodge Charger/Grand Caravan/Challenger. Dorman 604-045 HVAC Blend Door Actuator Compatible with Select Models. Dorman 604-029 HVAC Blend Door Actuator Compatible with Select Models. want to buy some merch?! hit the link below 👇🏾👇🏾https://mybarrettgang.com/ everyone go subscribe to all my brothers youtube channels asap!!( click the li... 604-024 HVAC Heater Blend Door Actuator Replacement for 2008-2019 Chrysler 300, 2008-2016 Chrysler Town & Country, 2008-2019 Dodge Charger/Grand Caravan/Challenger 4.2 out of 5 stars 340 1 offer from $18.99The heater blend door actuator is a small electric motor and gear that is connected to the heating and A/C/ system's control module. This then controls the blend door or vent door that mixes warm and cool air to be sent to the vehicle's cabin vents. When the desired temperature is selected using the controls on the dash of the vehicle, the ...2017 Dodge Charger AC Heater Blend Door Actuator. Buy Online. Pick Up In-Store. Brand. Price. What are you working on today? Get an exact fit for your 2017 Dodge Charger. Add a Vehicle. 1-2 of 2 Results. Sort by . 1-2 of 2 Results. Filter . Sort by . Brand. Price. Sponsored. Dorman HVAC Door Actuator 604-024. Sponsored ...2012 Dodge Charger Mode Blend Door Actuator. Part Number: 68033337AA. Vehicle Specific. Other Name: Actuator-A/C And Heater. Replaced by: 68299450AA. $86.25 MSRP: $129.00. You Save: $ 42.75 ( 34%) Check the fit. Add to Cart.Blend Door Motor - Sold individually, Actuator Motor (4 Required With... Part Number: GPD1712234. Guaranteed to Fit. $24.49. 0. Add to Cart. Vehicle Fitment. 2007 Dodge Charger R/T 8 Cyl 5.7L Actuator Motor (4 Required With ATC, 3 Required Without ATC) 2007 Dodge Charger SE 6 Cyl 2.7L Actuator Motor (4 Required With ATC, 3 Required Without ATC)How to Replace Blend Door Actuator Dodge Avenger. Clicking Tapping Noise in Dash Fix. Actuator locations. Dodge Chevy Ford Blend Door Actuator Replacement. ...Blend door actuator locations. So I have read that the 2011 year for the charger had some issues with vent actuator motor breaking. Well I'm down 2 and the ticking noise is driving me nuts! I found a post on how to repair them, I just need to know the location of all 4 so I can do it. Pictures or another forum post would be awesome.2. After replacing the actuator, you probably need to re-calibrate the actuator so that the computer knows the position and range to adjust the air door. Most tutorials and forum posts saying only ...If you own a Dodge Charger, you likely already know how powerful and stylish this car is. However, to truly make your Charger stand out on the road, you may want to consider adding...Step 4: Assess the Blend Door Actuator’s Functionality. To evaluate the actuator’s current performance: Connect your multimeter or voltmeter to the terminals on the actuator. Turn on the ignition and observe the voltage reading as the blend door actuator moves. Compare the readings with the manufacturer’s specifications found in the ... Dorman HVAC Door Actuator 604-024. Part # 604-024. SKU # 469637. Limited-Lifetime Warranty. Check if this fits your 2008 Dodge Charger. Notes: HVAC Mode Door Actuator. PRICE: 32.49. $3249. Free In-Store Pick Up. Take good care of your Dodge Charger. TL;DR. Symptom: The passenger side air conditioner (AC) only blows heat regardless of the temperature setting. …Jan 30, 2016 · Remove the power connector first to make it easier. This was a pain for me. 7. Match the cogs on the actuator on your new one to the one you removed using the battery/battery charger method above. 8. Connect the cable connector to the new actuator and install the new actuator until its flush. On the single zone system ['08 - '10] the blend door actuator is on passenger side and the temp actuator is on driver side. When you removed the silencer panel below the dash on the driver's side, you can see the actuator - sometimes the arm can break (plastic) or the actuator motor is non-op. Both are electrically operated - not cable or vacuum.Oct 8, 2022 · You might try the battery disconnect/reconnect. If there's no other HVAC problems, and the automatic Actuator Calibration process isn't working, you may need the dealership to perform the manual Actuator Calibration procedure. Blend door actuator View attachment 127220 Mode door actuator View attachment 127221. Are you in the market for a brand new Dodge vehicle? Whether you’re looking for a sleek Charger, a versatile Durango, or a powerful Ram truck, finding the right dealership is cruci...Part #: DA9004. Line: MRY. Check Vehicle Fit. Air Door Actuator Kit With Dual Zone Climate Control; Includes: Blend Door Actuator (Left), Blend Door Actuator (Right), Mode Door Actuator And Recirculation Door Actuator. Limited Lifetime Warranty. Your Dodge Charger's blend door actuator, also known as the HVAC actuator, controls the position of ... 2011 Dodge Charger AC Heater Blend Door Actuator. Buy Online. Pick Up In-Store. Brand. Dorman (1) Duralast (1) Price. Set custom price range: to. $30 - $35 (1) $125 ... Apr 13, 2016 · Product Description. This is a genuine MOPAR A/C And Heater Blend Door Actuator For the following vehicles; 2008-2017 DODGE GRAND CARAVAN 2008-2017 CHRYSLER TOWN & COUNTRY 2008-2017 DODGE CHARGER 2008-2017 DODGE CHALLENGER 2008-2017 CHRYSLER 300 2008-2011 DODGE DAKOTA Brand new in package! If you are unsure of your application, please send us ... To reset a blend door actuator, you must remove the actuator and turn on maximum heat on the climate control. Turn the blend door shaft until maximum heat comes from the vents, then reinstall the actuator. Finally, turn on the air conditioner and test the blend door actuators before putting everything back together.As already mentioned there are four actuators. Two on driver side are blend-air door (temp control) and mode door (directs air flow to floor, defrost, dash …Blend Door Problem. I've done my fair share of internet searches about the clicking sound and blend door actuator issue and still haven't found a solution to my problem. I have a 2011 Dodge Charger RT and a few months ago I started her up to some very loud clicking coming from behind the driver side dash. After some research I figured …The factory service manual has a procedure for calibrating the blend doors if you have a manual temperature control system; the dual-zone automatic control requires a factory scan tool to run the calibration procedure. To start the Actuator Circuit Test / Door Calibration function, perform the following: 1. Turn the ignition to the On position. 2.djalbin said: The HVAC system in the Dodge Charger is a blend-air type system. In a blend air system, blend-air doors control the air flow. On the driver side, there's a blend door and a mode door. The blend door blends hot/cold air to match the temperature setting of the HVAC control. The mode door directs the air to the floor, defrost/demist ...Jan 8, 2021 · Start the engine. Turn the blower control to manual low. Turn the Left and Right Blend controls to full cold. Turn the Mode control to panel. Press the A/C mode switch on, wait 30 seconds, press it off, and then proceed to the next step. Press the Rear Defrost mode switch on, wait 30 seconds, press it off, and then proceed to the next step. Buy A-Premium HVAC Heater Blend Door Actuator, Compatible with Jeep Compass 2010-2016, Patriot 2010-2016 & Dodge Charger 2007-2011, Challenger 08-10, Magnum 07-08, Caliber 10-11 & Chrysler 300 07-11, Main: Heater Blend Door Levers - Amazon.com FREE DELIVERY possible on eligible purchasesBlend Door Problem. I've done my fair share of internet searches about the clicking sound and blend door actuator issue and still haven't found a solution to my problem. I have a 2011 Dodge Charger RT and a few months ago I started her up to some very loud clicking coming from behind the driver side dash. After some research I figured it was ...The Speedy Mag Wireless Charger is on sale for over 60% off. If you hate using cords or clunky portable chargers, wireless and magnetic charging may be the way to go. The Speedy Ma...Enter your vehicle info to find more parts and verify fitment. Get the wholesale-priced Genuine OEM Mopar Blend Door Actuator for 2012 Dodge Charger at MoparPartsGiant Up to 40% off MSRP.The heater blend door actuator is a small electric motor and gear that is connected to the heating and A/C/ system's control module. This then controls the blend door or vent door that mixes warm and cool air to be sent to the vehicle's cabin vents. When the desired temperature is selected using the controls on the dash of the vehicle, the ...The full-size 1960-1961 Dodge Dart line contained three series: Seneca, Pioneer, and Phoenix. See photos and specifications of 1960-1961 Dodge Dart. Advertisement Though better kno...The A/C Heater Module drives the Door Actuators using a Door Driver circuit and a Common Door Driver circuit. Most of the door actuators share a common door driver circuit but each door actuator also has its own driver circuit. B11CB-13 is set when the A/C Heater Module detects an open in the Driver Blend Door control circuit.Step 2 – Replace blend door actuator. At this point you will be able to access both blend door actuators. Remove the wiring harness that plugs into the actuator, then the three screws that hold it into place. Set the new actuator (s) in place and install the three screws and the wiring harness. Figure 2.Are you in the market for a brand new Dodge vehicle? Whether you’re looking for a sleek Charger, a versatile Durango, or a powerful Ram truck, finding the right dealership is cruci...Air Blend Door Actuator for a Dodge Charger. Use the fitment form at the top of the page to select your exact year and engine type for your Dodge Charger. Dorman - HVAC Blend Door Actuator: 1 Piece (Part No. 604-024) Description. This air door actuator directly replaces the original actuator on specific vehicle years, makes, models ...2014 Dodge Charger Mode Blend Door Actuator. Part Number: 68033337AA. Vehicle Specific. Other Name: Actuator-A/C And Heater. Replaced by: 68299450AA. $86.25 …You have a clicking under your dash board? Let’s fix it.Blend door actuator info. I recently lost AC from the driver's side and rear vents. It pushes air, just not cold air. It's still icy cold on the passenger's side. I know that there are four actuators, 2 RH and 2 LH. I can only assume that it's one of the two on the driver's side. I'm trying to have a target before I get upside down and start ...463 posts · Joined 2010. #1 · Dec 22, 2014 (Edited) I have a 2010 Challenger with only 20,000 miles. I suddenly started having blend door actuator problems after using my defroster for the first time this year. It is clicking (slipping gears) when the temp control is moved to the cold settings. Disconneted the negative cable and it is still ...On the single zone system ['08 - '10] the blend door actuator is on passenger side and the temp actuator is on driver side. When you removed the silencer panel below the dash on the driver's side, you can see the actuator - sometimes the arm can break (plastic) or the actuator motor is non-op. Both are electrically operated - not …Buy Replacement HVAC Blend Door Actuator - Compatible with Chrysler, Dodge, Mitsubishi, Ram and VW - 300, Town and Country, Challenger, Charger, Magnum, Raider - Replaces 68031977AA, 68033337AA, 604-024: Actuator Blocks - Amazon.com FREE DELIVERY possible on eligible purchases 2011 Dodge Charger AC Heater Blend Door Actuator. Buy Online. Pick Up In-Store. Brand. Dorman (1) Duralast (1) Price. Set custom price range: to. $30 - $35 (1) $125 ... Oct 8, 2022 · You might try the battery disconnect/reconnect. If there's no other HVAC problems, and the automatic Actuator Calibration process isn't working, you may need the dealership to perform the manual Actuator Calibration procedure. Blend door actuator View attachment 127220 Mode door actuator View attachment 127221. The same actuator fits all the HVAC doors (blend-air doors, recirculation door, mode door). The Mopar OEM PN is 68299450AA. 2012 R/T with Road&Track and Super Track Pak, HHP 180°F thermostat463 posts · Joined 2010. #1 · Dec 22, 2014 (Edited) I have a 2010 Challenger with only 20,000 miles. I suddenly started having blend door actuator problems after using my defroster for the first time this year. It is clicking (slipping gears) when the temp control is moved to the cold settings. Disconneted the negative cable and it is still ...Oct 21, 2017 · After you replace it, disconnect your battery power for a few minutes, then when you reconnect it the new actuator will go into self adjusting mode and will go to the max one way then another a few times. Start up the car and give it a shot..turn the climate up and down and watch for the actuator to adjust the gear. ChallengerDude2012. A Dodge Grand Caravan HVAC Air Door Actuator Replacement costs between $264 and $280 on average. Get a free detailed estimate for a repair in your area. ... the actuators and blend doors require the instrument panel to be removed, and the HVAC central housing and ducts separated to complete this repair. This is a very in depth repair that ...As already mentioned there are four actuators. Two on driver side are blend-air door (temp control) and mode door (directs air flow to floor, defrost, dash … Share. Access our free Removal & Installation Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008 through AutoZone Rewards. These diagrams include: Fig. Remove the 3 screws (1) holding the blend door actuator (2) to the passenger side of the HVAC air distribution housing (3) and detach the connector (4) from the actuator. Duralast HVAC Air Door Actuator Kit PSPADK004. Part # PSPADK004. SKU # 1266002. Limited-Lifetime Warranty. Check if this fits your 2011 Dodge Charger. Notes: With dual zone climate control. HVAC actuator kit. Includes: blend door actuator - left, blend door actuator - right, mode door actuator, recirculation door actuator. PRICE: 127.99.Dodge Challenger Hvac Temperature Valve Actuator. Part Number: 68299450AA. Vehicle Specific. Other Name: Actuator-A/C And Heater; Actuator, Door Actuator. Replaces: 68033337AA, 68238243AA. $86.25 MSRP: $129.00. …Update on my rescue Challenger: I have been dealing with the annoying clicking noise for a couple of months, and have located it, as being a bad blend door actuator. Dealer costs would be in excess of $300!!! Last night, I tore into it and found it was the TOP actuator, a little tougher to get to, but after removing and taking apart, …463 posts · Joined 2010. #1 · Dec 22, 2014 (Edited) I have a 2010 Challenger with only 20,000 miles. I suddenly started having blend door actuator problems after using my defroster for the first time this year. It is clicking (slipping gears) when the temp control is moved to the cold settings. Disconneted the negative cable and it is still ...Nov 26, 2022 · This blend door actuator wouldn’t stop clicking and it was driving the customer crazy!Here I will show you how to replace a blend or mode door actuator on a ... Are you in the market for a brand new Dodge vehicle? Whether you’re looking for a sleek Charger, a versatile Durango, or a powerful Ram truck, finding the right dealership is cruci...Readers offer their best tips for saving a bit of extra money, finding spare chargers when staying at hotels, and removing stubborn toilet stains. Readers offer their best tips for...Buy A-Premium HVAC Heater Blend Door Actuator, Compatible with Jeep Compass 2010-2016, Patriot 2010-2016 & Dodge Charger 2007-2011, Challenger 08-10, Magnum 07-08, Caliber 10-11 & Chrysler 300 07-11, Main: Heater Blend Door Levers - Amazon.com FREE DELIVERY possible on eligible purchasesBlend Door Actuator Repair Cost. On average, you may spend $300 to $400 to have the blend door actuator replaced. This price would include the parts and labor, which means you don’t have to perform the reset either. However, you could save a lot of money by performing the work yourself since the parts may only cost $100 to $150.The A/C Heater Module drives the Door Actuators using a Door Driver circuit and a Common Door Driver circuit. Most of the door actuators share a common door driver circuit but each door actuator also has its own driver circuit. B11CB-13 is set when the A/C Heater Module detects an open in the Driver Blend Door control circuit.I was able to tell that her actuator was indeed moving back and forth like normal but the door shaft right before it goes into the coupler section for the actuator gear was broken. I bought a brand new actuator, recirculation door, and the upper housing that comes as a complete unit from Dodge for $87.43.Duralast HVAC Air Door Actuator Kit PSPADK004. Part # PSPADK004. SKU # 1266002. Limited-Lifetime Warranty. Check if this fits your 2011 Dodge Charger. Notes: With dual zone climate control. HVAC actuator kit. Includes: blend door actuator - left, blend door actuator - right, mode door actuator, recirculation door actuator. PRICE: 127.99.Dodge Charger Mode Blend Door Actuator. Part Number: 68033337AA. Vehicle Specific. Other Name: Actuator-A/C And Heater. Replaced by: 68299450AA. $86.25 MSRP: $129.00. You Save: $ 42.75 ( 34%) Check the fit. Add to Cart. Fits the following Vehicles:The cost of a standard tune-up for a Dodge Charger depends on a number of factors, but it can range from $200 to $800, as of 2015. If major servicing is necessary in addition to th...The four door actuators: There are two blend-air door actuators. They blend hot/cold to match temp settings. One on driver and one on passenger side for dual zone ATC. None on passenger side if single zone MTC. There's one mode door actuator on driver side. It directs the air to the selected vents (dash, floor, windshield).

70 Blend Door Actuators found. View related parts. Dodge Evaporator Heater-Actuator. Part Number: 68018109AA. Vehicle Specific. Other Name: Actuator-A/C And Heater; Actuator. $118.47 MSRP: $177.00. You Save: $ 58.53 ( 34%) Check the fit. . Allstate commercials actors

dodge charger blend door actuator

DodgeGuy, I had my driver side blend-air actuator replaced a few years ago, under warranty, at the dealership. At that time the part was $40.75 and the labor was $160.00. Hope you are right, I think there are 2 on the drivers side, hope it is the less costly of the 2 to replace. I have an actuator.Jun 30, 2020 · Blend Door Actuator Motor Calibration. Turn ignition key to the on position and turn on the HVAC system. Move the key to the off position. Open hood (bonnet for the RHD guys) and locate fuse #15 in the fuse box next to the battery. Remove the fuse and wait 1-2 minutes for any capacitive charges in the system to dissipate. Step 1: Insert the ignition key and turn it to the On position. Then, hit the ‘Auto’ button on the temperature control. Turn your car off once the controller says Auto on its display. Step 2: Next, go to the fuse box and pull out the fuse for the AC controller system or HVAC actuator.Share. Access our free Removal & Installation Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008 through AutoZone Rewards. These diagrams include: Fig. Remove the 3 screws (1) holding the blend door actuator (2) to the passenger side of the HVAC air distribution housing (3) and detach the connector (4) from the actuator.The practical 1964 Dodge 330 Super Stock Two-Door Sedan is a loving recreation of an authentic factory issue Hemi-engine Super Stock car. Learn more. Advertisement Sometimes the se...Duralast HVAC Air Door Actuator Kit PSPADK010. Part # PSPADK010. SKU # 1265983. Limited-Lifetime Warranty. Check if this fits your 2013 Dodge Challenger. Notes: HVAC Air Door Actuator Kit. Includes: blend door actuator, mode door actuator, recirculation door actuator. PRICE: 96.49. $9649.I have a 2011 Dodge Charger that's had a "click click click" noise coming from the passenger side, behind the glove box. After researching, I was able to fin...Dec 16, 2018 · HOW TO REMOVE AND REPLACE A BLEND DOOR ACTUATOR IN A NEW CHARGERenjoy ur coffee by a u x @auxofficialMusic provided by Free Music for Vlogs youtu.be/ox0So3z... It was just a matter of time before smart home devices started blending — like this video doorbell and deadbolt. Expert Advice On Improving Your Home Videos Latest View All Guides ...Your Dodge Charger's blend door actuator, also known as the HVAC actuator, controls the position of the blend door to adjust the temperature of air that flows into the cabin of your Charger. When the blend door is opened or closed, this controls the temperature of the air by directing air from the blower motor over the heater core or A/C ...I was able to tell that her actuator was indeed moving back and forth like normal but the door shaft right before it goes into the coupler section for the actuator gear was broken. I bought a brand new actuator, recirculation door, and the upper housing that comes as a complete unit from Dodge for $87.43. Share. Access our free Removal & Installation Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008 through AutoZone Rewards. These diagrams include: Fig. Remove the 3 screws (1) holding the blend door actuator (2) to the passenger side of the HVAC air distribution housing (3) and detach the connector (4) from the actuator. 2. After replacing the actuator, you probably need to re-calibrate the actuator so that the computer knows the position and range to adjust the air door. Most tutorials and forum posts saying only ...1984-1987 Dodge Charger | 4 Cyl 1.6L, 4 Cyl 2.2L. Shop wholesale-priced OEM Dodge Charger Blend Door Actuators at MoparPartsGiant.com. All fit 1984-2020 Dodge …463 posts · Joined 2010. #1 · Dec 22, 2014 (Edited) I have a 2010 Challenger with only 20,000 miles. I suddenly started having blend door actuator problems after using my defroster for the first time this year. It is clicking (slipping gears) when the temp control is moved to the cold settings. Disconneted the negative cable and it is still ...#1 · Jul 1, 2021. I have a 2014 Dodge Charger. The heater isn’t working on the driver side it stays cold. I don’t hear a knocking on any of the Blend door Actuator …Summary. The blend door has an electric actuator that helps control its position. Most blend door actuators have a built-in feedback sensor that keeps the climate control apprised of the door’s position. The …Your Dodge Charger's blend door actuator, also known as the HVAC actuator, controls the position of the blend door to adjust the temperature of air that flows into the cabin of your Charger. When the blend door is opened or closed, this controls the temperature of the air by directing air from the blower motor over the heater core or A/C ...Most people buy a wireless charger for one reason, and that reason is the convenience of placing a device on a circular pad (or a stand, or whatever) to restore its battery. No mor....

Popular Topics