Diagnosing an unfamiliar condition without OEM information can
take time and cost your customers money. You may save both time
and money by first consulting a vehicle manufacturer’s technical
service bulletins (TSBs). When a fix for a known issue is already
published, it’s a win-win for everyone. Here’s an excerpt from a
TSB issued by Chrysler dealing with a steering problem on certain
2009 Chrysler® and
After completing a turn, a customer may experience a steering
wheel that does not return to center on its own. If you verify
that the condition exists, perform this repair procedure, which
involves installing an external power steering cooler and
replacing both power steering return lines.
All 2009 Chrysler and Dodge LC & LX vehicles: 300/300C®,
Required Special Tools
Repair Procedure – Enhance Power Steering Cooler
Review safety procedures in ALLDATA Repair® before
Remove the Front Fascia.
If this vehicle is:
LC proceed to Step # 3
LX proceed to Step # 4
Remove the Front Air Dam.
Remove the Belly Pan.
Remove the left and right cooler baffles (Figure
1). NOTE: LX vehicles only. NOTE: In the following step do not remove any
air conditioning hoses.
Remove (4) Condenser mount screws and tilt the assembly
Remove the power steering return line hose and cooler clamp
from the cooler.
Loosen the return line nut at the power steering rack.
Is this vehicle a SRT?
Yes >> Proceed to Step #11.
No >> Proceed to and skip Step #11.
For all models except SRT: Using both cooler mounting clips,
center the new power steering cooler (05137721AA) and mount
between fins 6 and 7 from the top of the condenser edge
(Figure 2). NOTE: All models except SRT.
For SRT vehicles only: Using both cooler mounting clips,
center the new power steering cooler (6801 7995AA) and mount
between fins 11 and 12 from the top of the condenser edge
(Figure 3). NOTE: SRT only
Reinstall all (4) mounting screws for the cooler. NOTE: Verify the machine screw is used on
the aluminum A/C block on the top right, SRT models do not
Remove the Air Box.
Siphon power steering fluid from pump reservoir.
Remove the power steering return hose connected to the
steering reservoir and using a safety regulated rubber tipped
blow gun, extract the remaining power steering fluid in the
tri-cooler at 5 psi (Figure 4).
Remove the return hose from the cooler and discard.
Install new cooler to reservoir hose. NOTE: Keep the black inlet and outlet
protective boots from the cooler they will be used in Step
Install new power steering gear to cooler hose.
Install the black protective boots on the old inlet and
outlet ports of the power steering cooler and secure them
with zip ties as shown in (Figure 5).
Bleed and fill power steering system as required.
For LX vehicles only: Re-install the cooler baffles on the
left and right side (Figure 1).
For LC vehicles only: Install the Front Air Dam.
Install the Front Fascia.
Install the Belly pan.
Drive the vehicle to verify the repair.
NOTE: Follow OE information or standard
practices for all procedures and sub-procedures.
NOTE: This Repair/Service Procedure is
intended for use by trained, professional technicians with
the knowledge, tools and equipment to do the job properly and
safely. It is recommended that this procedure not be
performed by “do-it-yourselfers.”