have a 2000 Lexus 300 ES which I recently put in the shop to have
the timing belt and water pump replaced. The car runs great, but the
horn on my security system is no longer audible when I lock and
unlock the car. It locks and unlocks properly, but there is just no
beeping sound. Before I put the car in the shop, it worked just
fine. My mechanic checked the relay, but canít figure it out. I
miss the convenience of hearing the car lock and unlock, and hope
you can help me out.
ANSWER: Best I
can tell by researching this issue online, there is a volume control
for the door lock/unlock horn mounted under the dash near the center
console. Perhaps this got "unadjusted" during the vehicleís
very likely the technician disconnected the battery while working
under the hood, the keyless entry system may need reprogramming.
Apparently Toyota/Lexus service tools can provide customer
customization, including turning on or off the remote door lock
horn. Since your keyless remote transmitter still operates the door
locks properly, this may be the answer.
the KISS principle of keeping it simple, check the fuse for this
horn in the engine compartment junction block. This fuse provides
power to the theft-deterrent electronic control unit, or ECU.
Q: Two years
ago I bought a 2003 Jeep Liberty Limited with automatic transmission
that had 125,000 miles at the time of purchase and now has 141,000
miles. Recently I received advice not to change the transmission
fluid and filter in the Jeep. I have always done this service with
other vehicles at the 25,000-mile mark or after two years. I have
checked the levels and fluid color and they appear OK. Why would the
mechanic advise me not to do the transmission maintenance? He said
that if I did the fluid change, it would cause issues with the
transmission. Is he right, or is there another solution?
A: In todayís
world of sealed, no dipstick, virtually maintenance-free automatic
transmissions, the transmission fluid and filter are easily
serviceable in your Jeep. Not only is there a dipstick under the
hood to allow checks of the fluid level and condition, but the
transmission oil pan is removable to replace the fluid and filter.
maintenance recommendations for your vehicle include changing the
transmission fluid and filter at 100,000-mile intervals under
"normal" conditions, but more frequent changes at
30,000-mile intervals under "severe" operating conditions.
I suspect your
mechanic is assuming that the transmission fluid has never been
changed in your vehicle. If thatís true, oxidation of the original
automatic transmission fluid, or ATF, after nearly 150,000 miles
could lead to sludge and varnish deposits that, if loosened or
dissolved by the fresh ATF, could conceivably restrict hydraulic
passages or components and cause potential problems or failure.
So, what to
do? Can you research the vehicleís service records through a Jeep
dealership? You might be able to determine whether or not the
transmission has ever been serviced. If it has not and you plan to
keep the vehicle, you have one of two options: 1) Add half a can of
SeaFoam Trans Tune to the transmission, drive the vehicle for a week
or so, and then have a complete flush, refill and new filter to
clean, flush and totally exchange all the old fluid for new, or 2)
Do nothing as your technician suggested and hope for the best.
the transmission has been serviced in the past, continue to service
it according to the factory maintenance schedule.
go for the complete flush, fill and filter.
Q: I have a
1998 Ford Ranger with 135,000 miles that needs a fuel pressure
regulator. I have been told that this part is obsolete and not
available in my area. Can you tell me where and how to find it?
A: I found
quality aftermarket fuel pressure regulators for the 3-liter and
4-liter V-6 from $50 to $100 online.