Corvette Power Steering Gear Cooling Duct Installation

The 2014-2016 Corvette is designed to deliver outstanding performance on the track with minimal changes needed to get the car ready to meet the demands of track driving.


Driving the vehicle on the track during hot days may result in drivers feeling a reduction in steering assist. A Driver Information Center message of “Service Power Steering Gear” may appear and DTC C0176 (Control Module Temperature Sensor High) may be set. These conditions may be caused by an increase in temperature with the steering gear, which is typical during prolonged driving in a track environment.


A new power steering gear cooling duct can be installed to help cool the power steering gear. There are several modifications that must be made before installation. Refer to #PI1535A for complete details on cooling duct installation and part numbers.


The new front compartment air deflector must be cut as shown in the illustration (Fig. 6) to the following dimensions:

#1 – 25.4 mm (1 in.)

#2 – 19.05 mm (0.75 in.)

#3 –152.4 mm (6 in.)

#4 – 50.8 mm (2 in.)


F06 cooling duct image 1

Fig. 6


Remove the support arm (Fig. 7, #1) from the cooling duct and cut the duct 50.8 mm (2 in.) after the second bend. (Fig. 7, #2)


F07 cooling duct image 2

Fig. 7

Also cut the duct at 50. 8 mm (2 in.) up from the top of the hole. (Fig. 8)

F08 cooling duct image 3

Fig. 8


Once the duct has been cut, position it in the air deflector slot. It should come out of the slot 25.4 mm (1 in.). Drill two holes through the air deflector and duct and rivet the parts together. (Fig. 9)


F09 cooling duct image 4

Fig. 9


Dry fit the modified cooling duct (Fig. 10, #3) to the vehicle to check that enough of the duct is cut to allow it to sit between the steering motor (Fig. 10, #1) and the lower rack (Fig. 10, #2). This may require multiple cuts to the duct and several test fittings to ensure proper positioning.


F10 cooling duct image 5

Fig. 10


– Thanks to Jeff Strausser

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