Properly maintaining your tow vehicle means
more than a basic oil and filter change
Over the years I’ve spent a lot of time on the water chasing
bass (and a few other fish) and testing bassboats. Of the
hundreds of boats I’ve been in I can remember only a handful
being in suspect condition.
Bass boat owners invest a lot of money in their fishing
platforms and as a rule keep them in top cosmetic and mechanical
condition.
During the same time, however, I have also seen and been in
just as many tow vehicles and am often surprised to see a shiny,
$40,000 bassboat package being towed behind a smoke belching,
rough running beater of a pickup or SUV with balding tires and a
missing headlight.
Often, it’s those very same tow vehicles you see sitting on
the side of the highway with steam belching from the radiator
with a growing pool of transmission fluid accumulating under the
chassis.
The sad thing is that these broken-down vehicles aren’t
25-year-old relics; they are often vehicles that are less than
10 years old.
As the cowboys used to say about worn out horses, “She looks
rode hard and put away wet.” Unfortunately, this is all too true
when applied to many vehicles towing bass club member’s boats.
If you want to chase fish, you first have to get your boat to
the water—and to do so your tow vehicle needs to be in reliable
mechanical condition.
Mileage Watchers
Regular preventive maintenance is extremely important. Now
most of us are pretty good at the basics. We check tire
inflation regularly, change the engine oil and filter ever three
months/3,000 miles and top off the coolant, power steering and
transmission fluids.
While this is certainly important maintenance, it really
isn’t enough for a tow vehicle that sees 15,000 miles or more
each year, which is why I advocate that every tow vehicle gets a
“full-service” maintenance check a couple of times a year—or
every 7,500 miles. Annually if you are pressed for time.
So what is a full service? Basically it is a preventive
maintenance procedure that checks, inspects and/or repairs vital
systems from bumper-to-bumper.
What needs to be inspected may vary on different vehicles, but
the checks and service procedure outlined below pretty much
cover most tow vehicles. However, for safety and reliability, it
is a good idea to check the maintenance schedules in the owner’s
manual for your specific vehicle.
Just remember that when you review the factory service
recommendations, vehicles that regularly tow a trailer are
considered as operating under “severe” conditions—or the Type
“B” maintenance schedule.
While virtually all the full service maintenance checks can
be performed by the do-it-yourselfer (which includes most
bassboaters), it is probably wise to have vehicles under
warranty serviced by the dealer to insure it remains in effect.
The maintenance schedules listed below are considered
bi-annual checks and are based on the assumption that the
vehicle owner will be performing the work. These recommendations
are based upon factory recommended service intervals.
But it is important to remember that in addition to the
service checks listed here, every tow vehicle will need to
undergo specific factory-ordered service at specific mileage
intervals such as 24,000, 30,000 60,000 and 80,000 miles.
If your twice-annual service check coincides with a major
service interval, you’ll need to include those items as well as
those listed in this article.
Safety First
Before working on the vehicle, take a few minutes to make
sure the vehicle is safe to work on—and you are safe to work on
it.
For most of the following procedures, this means that the
vehicle will be in Park, with the parking brake set, wheels
chocked and the engine off. However, depending upon the service
required, it may also be necessary to disconnect the battery
ground cable (-), make certain checks with the engine running
(such as checking automatic transmission fluid) and it may be
necessary to jack up the vehicle (brakes/driveline/suspension).
Here is a short list of do’s and don’ts that should be
followed when working on any vehicle:
DO keep long hair and loose clothing
away from moving parts. Wear a close-fitting shirt and tie
long hair back.
DO make sure the vehicle is safely
parked on level ground, with wheels chocked, parking brake set
and transmission in Neutral or Park.
DO wear safety glasses when working
on or under the vehicle to protect your eyes from falling dirt
and caustic chemicals.
DO have someone check on you every
once in awhile to make sure you are OK—especially if you plan
on working under the vehicle.
DO keep a fire extinguisher within
reach of the work area…just in case.
DO use jacks and jackstands of the
approved weight rating for your vehicle and position them in
the correct position under the chassis (refer to the owner’s
manual).
DO use the correct tools and make
sure they are in good condition before starting work. Cracked
sockets, worn screwdrivers and old locking pliers won’t make
for safety or a good repair.
DO have on hand an owner’s workshop
manual (such as those produce by Haynes or Chilton) or a
factory service manual to refer to during the repair process.
DO keep toxic chemicals such as
antifreeze, oil, gasoline and other automotive chemicals out
of the reach of children and away from animals.
DON’T start the engine without first
making sure that the parking brake is set and the transmission
is in Park or Neutral.
DON’T allow children or animals
around the vehicle while it is being worked on.
DON’T try to loosen tight lug nuts
while the vehicle is on a jack; it could fall off the jack.
Loosen the nuts a little before jacking the vehicle.
DON’T touch any part of the engine
or drain vital fluids until they have cooled enough so that
you won’t get burned.
DON’T leave spilled oil or grease on
the floor of the work area. Wipe it up before someone slips
and gets hurt.
DON’T smoke or have open flame near
a vehicle being worked on. Many automotive chemicals are
flammable.
DON’T drink beer or alcohol while
working on your vehicle. Keep a clear head for safety and
celebrate after the work is completed.
BY THE BOOK
The following service
checks are recommended every 7,500 miles or twice a year and are
in addition to regular on-going service and maintenance such as
regular engine oil/filter changes (every 3,000 miles), vital
fluid checks, and any repairs that occur in the interim. Refer
to your owner’s manual for specific fluid types (power steering
fluid, transmission fluid, engine oil, filter type, coolant
type, etc.).
Coolant – Most automotive coolant
should be changed every two years or 24,000 miles as it picks
up acids and impurities that can clog and corrode cooling
passages over time. Coolant test strips available from
autoparts stores will indicate if a coolant change is
necessary. Top up as necessary with 50/50 mixture of coolant
and water.
Radiator and hoses – Radiator cap
should fit securely. Check radiator grille for pinched or
leaking fins and use a brush to clear away any dirt and debris
blocking the unit. Examine the hoses and hose connections for
cracks, leaks, sponginess, or bulging. Squeezing them between
thumb and forefinger should provide a pliant, resilient
response. Replace suspect hoses and use new hose clamps.
Serpentine belts – Modern drive
belts usually last some 60,000 miles but regular inspections
are necessary. Check for longitudinal cracks, broken vanes,
fraying edges, or brittle appearance. Check tension using a
belt tension gauge and adjust as required.
Battery – Check terminal connections
for corrosion (white powder) and tightness. If corrosion is
found, disconnect terminals (negative terminal first) and
clean terminals and posts with wire brush. Then apply a runny
paste of baking soda and water to neutralize corrosive action.
Examine cables for wear and check tightness at ground and
starter mounting points. On unsealed batteries, inspect fluid
level and top up as necessary with distilled water.
Power steering – Before inspecting
the fluid level, take a clean rag and wipe the caps clean.
Dirt and grease entering the system will degrade operation. On
most vehicles power steering fluid is automatic transmission
fluid. It should be red and need only a small top up. If it is
significantly low, add a power steering stop leak and inspect
system for leaks.
Brake fluid – Before inspecting the
fluid level, take a clean rag and wipe the caps clean. Dirt
and grease entering the system will degrade operation. Top up
as necessary with the correct DOT approved fluid (see owner’s
manual). Once fluid is up to spec, replace cap and test brake
pedal action by pumping the pedal. (You may need to run the
engine.) It should feel firm, not spongy. A soft or spongy
pedal indicates air in the system that will require bleeding
the brakes to eliminate.
Brakes –Jack up and properly support
the vehicle before beginning. For disc brake inspection,
you’ll have to remove the wheel. Most calipers have an
inspection hole in them that is easily seen once the wheel is
removed. Most rear brakes on pickups and SUVs are the
tradition drum type, so removing both the wheel and the wheel
drum is necessary for a brake shoe inspection. You should also
inspect brake hoses and wheel cylinders for leaks or wear at
the same time.
Manual transmission fluid level –
Most manual transmission have a fill plug that must be removed
to check fluid level. Jack the vehicle up and make sure it is
properly supported by jack stands. Remove the fill plug and
stick a finger into the hole. Fluid level should be just at
the bottom of the plughole. Top up as needed with the correct
transmission fluid or gear grease.
Transfer case and rear differential
– Both of these have fill plugs that must be removed to check
fill level. As with the manual transmission, fluid level
should just be at the bottom of the fill hole.
Automatic transmission fluid level –
This is checked with the engine running, parking brake set and
the vehicle in Park. A proper check requires that the
transmission fluid be up to operating temperature so do this
check only after driving the vehicle for about 15-20 minutes.
Check the dipstick for correct fluid level (top up as
necessary with correct fluid) and also for fluid condition.
Transmission fluid should be translucent red in color it
should not be brownish, smell burnt or have bits of debris in
it. If it is, an immediate fluid/filter change is necessary,
as well as an inspection by a professional.
Shift linkage – Have a buddy
maneuver the shift lever while you inspect linkage movement.
There should be no binding or excessive play. Lubricate moving
parts with automotive parts grease.
Throttle linkage – Have a buddy
press the throttle pedal while you inspect linkage/cable
movement. Check for smooth operation and return. Lubricate
with a few drops of engine oil or a spray lubricating oil.
Plug wires and spark plugs – Plug
wires should be flexible, not brittle and plug boots should
completely cover the plug. Pull the plugs – one at a time –
and check for condition and gap. Plugs should be replaced
annually (unless platinum-tipped) and plug wires replaced
every other year.
Steering linkage and drive line
components – Tow vehicles see a lot of water and to keep
linkage and drive line parts working properly, regular
lubrication with a chassis-rated grease is necessary. Use a
clean rag and clean all Zerc fittings before pumping grease
into them.
Air box/filter assembly – Clean air
is a must for efficient operation and unless you are running a
re-useable filter such as K&N, you’ll need to replace it.
While doing this, check/clean the air box or filter surround,
wiping up debris and grease and examine the condition of the
air conduit. It should not have any holes or cracks.
Suspension/shocks – Examine
suspension mounting points, checking bolt tightness. Check for
broken leaf springs on rear suspension and examine shocks to
make sure they aren’t bent, broken, or leaking.
Rotate tires – Regular rotation of
tires extends tire life by providing even wear. Check the
owner’s manual for the correct rotation pattern. While you are
at it, examine the tires for cracked or bruised side walls,
unusual tread wear patterns and valve stem condition. Then,
check and adjust inflation levels. Don’t forget the spare!
Receiver hitch – Examine the
receiver hitch for corrosion, cracks or scraping damage. Make
sure all mounting points are properly torqued and that the
trailer wiring and connector plug are in good condition.
Lights – Make sure the headlights,
taillights, brakelights, directionals, parking lights and
license plate lights are working properly.
Wipers – Check overall condition of
wiper blades. They should be supple and without cracks, chips
or hardness so they provide a streak-free clearing of the
windshield and rear window (SUV).
Author’s note: The list above is long and detailed. But
it’s exactly what the vehicle manufacturer, based on their tests
and input from the engineers who designed and built it,
recommend in order to keep it functioning long after the
warranty has expired.
Follow the maintenance schedules religiously and there’s no
reason your tow vehicle can’t be going about its business long
after you’ve worn out at least a couple bassboats.