Auto >> AutoSPT >  >> Engine

On my 2001 ford aerostar minivan why is there a thumping sound in the dash when you put temp control to hot side?

The most likely cause of a thumping sound in the dash of your 2001 Ford Aerostar minivan when you put the temperature control to the hot side is a faulty blend door actuator. The blend door actuator is responsible for moving the blend door, which mixes heated and cooled air to control the temperature of the air that comes out of the vents. When the blend door actuator fails, it can cause the blend door to become stuck, which can result in a thumping sound.

Here are some steps you can take to troubleshoot the problem:

1. Check the temperature control cable. Make sure that the temperature control cable is properly connected to the blend door actuator. If the cable is loose or disconnected, it could cause the blend door to become stuck.

2. Check the blend door actuator. Try moving the blend door actuator by hand. If the actuator is stuck, you may need to replace it.

3. Check the vacuum lines. If your Aerostar has a vacuum-operated blend door actuator, check the vacuum lines to make sure that they are not cracked or disconnected. If there is a vacuum leak, it could cause the blend door actuator to not work properly.

If you are not comfortable troubleshooting the problem yourself, you can take your Aerostar to a qualified mechanic to have it diagnosed and repaired.

Auto Repair
How do you repair a rear wiper arm for 2010 Honda Pilot? Your Vehicles Winter Safety Checklist in Winston-Salem, NC
Car Care
What Happens When Your Car Runs Out of Gas?  Are luxury coaches manual or automatic? How much does an automotive warranty administrator make?
Engine
How do you replace a power window motor on 1995 Pontiac Firebird? What size engine is in a 1992 cheyenne 1500?
Electric Car
Where do you fill up the wiper fluid in a 84 Toyota LE Van? National EV charging network backed by government advisers How the bodywork of car can become negatively charged?
Autopilot
Meet the Infrastructure and Tools team How do you get the seat open on suzuki motorcycle access 125?
Car Photos
Where can you find an engine diagram for a 1966 Chevy Chevelle? What does the warning light on 2006 Chrysler 300 dashboard that looks like a red lighting bolt mean? Does a used car dealer have to disclose hail damage?