Tech Tip: Quieting a Ticking or Bubbling Blend Door Noise on Jaguars – UnderhoodService

Tech Tip: Quieting a Ticking or Bubbling Blend Door Noise on Jaguars

A Jaguar S-Type owner may complain of a ticking or bubbling noise coming from behind the fascia/instrument panel when using the climate control system. The noise may be the result of one or more of the

A Jaguar S-Type owner may complain of a ticking or bubbling noise coming from behind the fascia/instrument panel when using the climate control system. The noise may be the result of one or more of the ­climate control blend door actuators giving incorrect position feedback to the climate control module, causing the blend doors to continually search for their correct position and causing the noise.

To correct the condition, follow the Repair Procedure to replace all four blend door actuators.

Applicable Model: 2006-’07 S-Type, VINs: N53000-N91220

Repair Procedure:

Remove the Blend Door Actuators:

1. Remove the glove compartment.

2. Disconnect the battery ground cable.

3. Remove the recirculation blend door actuator (see Fig. 1): Disconnect the electrical connector and the control rod. Remove the retaining bolts and the actuator from the housing.figure 1

4. Remove the left-hand front footwell duct.

5. Reposition the in-vehicle temperature sensor venturi pipe.

6. Remove the footwell vent/duct blend door actuator (see Fig. 2): Disconnect the electrical connector. Remove the retaining bolts and the actuator from the housing.

Caution: Place the instrument cluster face up, taking care to protect the instrument cluster from damage. 

7. Remove the instrument cluster. figure 2

8. Remove the defrost vent/register blend door ­actuator (see Fig. 3): Disconnect the electrical connector. Remove the retaining bolts and the actuator from the housing.

9. Remove the instrument panel blend door actuator (see Fig. 4): Disconnect the electrical connector and the remote linkage. Remove the retaining bolts and the actuator from the housing. 

Install the New Blend Door Actuators:

Caution: Ensure the new actuators are fully meshed with the driven flaps before tightening the bolts. figure 3

1. Install the new instrument panel blend door ­actuator (P/N XR8 57887) (see Fig. 4): Insert the actuator into the housing. Install the retaining bolts. Connect the remote linkage and the electrical connector. 

2. Install the new defrost vent/register blend door actuator (P/N XR8 57885) (see Fig. 3): Insert the actuator into the housing. Install the retaining bolts. Connect the electrical connector. 

3. Install the instrument cluster. Figure 4

4. Install the new footwell vent/duct blend door actuator (P/N XR8 57886) (see Fig. 2): Insert the actuator into the housing. Install the retaining bolts. Connect the electrical connector.

5. Correctly position the in-vehicle temperature sensor ­venturi pipe.

6. Install the left-hand front footwell duct.

7. Install the new recirculation blend door actuator (P/N XR8 57888) (see Fig. 1): Insert the actuator into the housing. Install the retaining bolts. Connect the control rod, and connect the electrical connector.

8. Install the glove compartment.

9. Connect the negative battery cable.

10. Drive the vehicle to confirm the repair.

By Ed Dorowski, ALLDATA ­editor and Jeff Webster, ALLDATA technical writer.

You May Also Like

HVAC Sensors: More Than Just Temperature

When a driver sets a temperature in the control head of an HVAC system, what does it mean to the vehicle? Seventy-two degrees could mean many different settings depending on the outside temperature, humidity and even the position of the sun.

When a driver sets a temperature in the control head of an HVAC system, what does it mean to the vehicle? Seventy-two degrees could mean many different settings depending on the outside temperature, humidity and even the position of the sun.

When a passenger decides that 70 degrees is a better temperature for their zone, things get even more complicated. Automatic Temperature Control (ATC) systems require a complex array of internal and external sensors that include ambient air temperature sensors, interior temperature sensors, outlet duct and evaporator temperature sensors, pressure sensors, humidity sensors, blend door position sensors and sunload sensors.

Nearly 5,000 To Participate In Auto Value, Bumper To Bumper ‘Festive Walk’ To AAPEX 2018

On Thursday, Nov. 1, nearly 5,000 Auto Value and Bumper to Bumper automotive professionals wearing matching yellow shirts will begin their “festive walk” from the Mirage hotel to AAPEX 2018 at the Sands Expo, temporarily shutting down the busy Las Vegas Boulevard along the way.

Drive Belt Checklist: What Are You Missing?

You might have only one chance to sell a customer a new serpentine belt. With belts lasting roughly 90,000 miles, proper inspection at the time of failure is critical not only for selling the belt, but also for ensuring add-on sales and better customer satisfaction.

VIDEO: Using Airflow To Sell Cabin Air Filters

Andrew Markel introduces an inexpensive tool that can assist in selling cabin air filter replacements. Sponsored by Auto Value and Bumper to Bumper.

airflow-selling-cabin-air-filter-video-featured
Air Conditioning Odor Causes

Air conditioning odors typically result from the uncontrolled growth of bacteria and other microorganisms in the evaporator. Research by independent laboratories has found fungi such as Aspergillus, Cladesporium, Penicillium and others growing on cooling coils and other A/C system areas.

ac air conditioning smells featured

Other Posts

Climate Control Modules

HVAC control modules may fail when the contacts and switches become inoperable. Sponsored by The Group Training Academy.

Dorman Launches 300+ New Products In November

Among the new products is an OE FIX climate control module designed to fit 1.7M Chevrolet Express & GMC Savana vehicles.

Curing Springtime Air Conditioning Smells

Air conditioning scents can come from a host of things.

VIDEO: R1234yf A/C Update

Andrew Markel answers questions about the new refrigerant, R1234yf. Sponsored by MAHLE.