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By Jim Wilk, Licensed Auto Body
Technician
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This 2007 Subaru Impreza hit a deer at a
speed of 55 mph and went off the road into a
ditch. |
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A view of the right side. At first glance,
there doesn't appear to be much damage to
the right side, but if you look closer, you
can see a dent in the front door. There
was was also a buckle above the front wheel
well.
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| I began
by removing the damaged parts. First, I
took the bumper off, and then I removed the
remains of the mangled left headlight |
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I removed
the front fender bolts that were just
beneath the hood. |
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| Then I
removed the lower rocker panel trim to
expose the lower fender bolts. |
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I removed
the three bolts from the back of the fender.
When the door is opened, two bolts can be located
near
the top and bottom of door. The third
bolt was located at the very bottom of the
fender. |
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| View of
the deer fur on front edge or the fender. |
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Structural Damage After An
Accident
Crumpled fenders and a broken grill
are obvious signs of damage after a front-end collision, but
the sheet metal behind the fenders and grill
has a structural purpose, and these inner components
often get bent in an accident.
Since most cars are symmetrical, the
major structural dimensions are designed to be the same on
the left and right-hand side of the vehicle.
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measured from the shock tower bolts to a
bolt hole on the radiator support bracket.
I used an ordinary tape measure for this
procedure. |
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My
measurement on the left side (driver's side)
was 2.5 inches less than the right
side measurement. The left side of the
radiator support bracket had been pushed
back 2.5 inches by the impact with the deer.
(D'oh!)
This damage will require the frame
straightening machine. |
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| After
anchoring the vehicle and setting up the
frame pulling equipment, I positioned myself
in the safety zone and pulled the
radiator support forward while
measuring with a yard stick. |
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Then I
took a cross measurement to make sure the
inner structure was square. |
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| Although damaged, the air conditioning
condenser still contained Freon. Using the
air conditioning charging station, I
evacuated the refrigerant from the system. I always
follow the EPA standards. The system will
be recharged when the repairs are complete,
which we'll explain later. |
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| Front
view of car with air conditioning
condenser and radiator removed. |
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After
replacing the A/C condenser and radiator, I put
the electric fan back in place. |
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| I started
the procedure of replacing the left fender
by installing the top bolts first. |
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Next I
installed the
fender side bolts. |
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| Then I
put in the lower fender bolt and the plastic
inner wheel shield. |
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I then
checked the fender-to-door alignment and gap. |
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| With
everything fitting properly I replaced the
rocker panel cover. |
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Whenever the air conditioning system is opened to the
atmosphere, water vapor will get into the
system. But any water inside the air
conditioning system can cause serious problems. The standard
practice is any auto repair shop is to pump ALL the
air out of the A/C plumbing, which draws out water vapor and
will force any drops of liquid water to evaporate.
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Our shop
has an air conditioning service unit,
which is used to recover and recharge
refrigerant, and more. I connected this
machine to the car's A/C lines and turned on
the vacuum pump to suck the air from the
system. This machine will draw an almost
perfect vacuum, which means there is
almost no air inside.
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Our A/C station is automatic...
it draws a vacuum for 15 minutes and then stops. Then it
tells you to open a valve to add refrigerant oil to the
system (typically 2 ounces). After that, you enter the
number of pounds of refrigerant that the car's
manufacturer specifies, and the machine fills the car's
A/C system with the exact amount of R-134a.
After refilling the A/C system, I
ran the car and placed a thermometer in the air duct. The
thermometer should read 40 to 55 degrees Fahrenheit when the
air conditioning is working properly.
It's worth mentioning that most auto
body repair shops have the tools and expertise to properly
recover and recharge an air conditioning system, and the
rates are often lower than auto repair shops.
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Many
do-it-yourselfers try to recharge their
car's A/C with one-pound cans of R-134a
bought from a discount store or parts
retailer. This only works when the system
needs exactly one or two pounds of
refrigerant, which isn't likely. It's easy
to over-charge the system, which can damage
the compressor. The best approach is
to have a properly-equipped shop draw down
the system with a vacuum pump and charge the
system with the exact amount of refrigerant.
This can often be done for under $100,
depending on where you live. |
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| I
replaced the
left headlight assembly, but there was a problem...
the left headlight was dimmer than
the right. After checking the wires and connections
I consulted the owners manual. According to
the manual, there is a right and left
headlight fuse,
located in fuse panel in the engine
compartment.
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When I
released the clips holding the fuse panel cover,
it exploded open. It was stuffed with
fiberglass house insulation and two dead
baby mice! |
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| According
to the fuse diagram, one of the dead mice is
located right above the fuse in question. |
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So I
vacuumed the fuse panel of all foreign
matter, including dead critters. |
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| The fuse
was shorted out, due to moisture (or urine,
perhaps).
So I vacuumed it dry and replaced the fuse.
The dim headlight problem was solved. |
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The
hood had to be backordered, so it arrived a
few days after the other repairs were done.
I attached the hood and aligned it
properly. Then it was ready to be painted.
The
front bumper was painted separately, then
installed later. |
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| View of
left side Subaru Impreza after assembly and
painting. |
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View of
right side. The total
repair cost for this deer collision was
$7,200.
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The work in this article was performed at
R-TECH Auto
Body in Traverse City, Michigan.
More Info:
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Tools Used:
- Basic Mechanic's Tools
- Frame
Straightening Machine
- Air Conditioning
Servicing System
- Wet-Dry Vacuum
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Materials Used:
- Fender, Hood, Front
Bumper, Headlight Assembly, AC
Condenser, Radiator.
- Automotive Paint
(Matrix)
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