Brand: Security system not audible after visit to shop

  • Article by: PAUL BRAND
  • Updated: April 12, 2013 - 4:53 PM

Q: I 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 can’t figure it out. I miss the convenience of hearing the car lock and unlock, and hope you can help me out.

A: 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 vehicle’s service.

Since it’s 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.

And following 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 (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 to not 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 today’s 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.

The 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 that’s true, oxidation of the original automatic transmission fluid (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 vehicle’s 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.

Obviously, if the transmission has been serviced in the past, continue to service it according to the factory maintenance schedule.

Personally, I’d 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 this 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.

  • get related content delivered to your inbox

  • manage my email subscriptions

ADVERTISEMENT

San Francisco - WP: M. Bumgarner 7 FINAL
Kansas City - LP: J. Shields 1
San Diego 10/23/14 7:25 PM
Denver
Detroit 10/26/14 8:30 AM
Atlanta
Buffalo 10/26/14 12:00 PM
NY Jets
St. Louis 10/26/14 12:00 PM
Kansas City
Houston 10/26/14 12:00 PM
Tennessee
Minnesota 10/26/14 12:00 PM
Tampa Bay
Seattle 10/26/14 12:00 PM
Carolina
Baltimore 10/26/14 12:00 PM
Cincinnati
Miami 10/26/14 12:00 PM
Jacksonville
Chicago 10/26/14 12:00 PM
New England
Philadelphia 10/26/14 3:05 PM
Arizona
Oakland 10/26/14 3:25 PM
Cleveland
Indianapolis 10/26/14 3:25 PM
Pittsburgh
Green Bay 10/26/14 7:30 PM
New Orleans
Washington 10/27/14 7:30 PM
Dallas
Houston 85 FINAL
Miami 90
Indiana 89 FINAL
Minnesota 107
Utah 105 FINAL
Oklahoma City 91
Portland 93 FINAL
Denver 75
Phoenix 114 FINAL
LA Lakers 108
LA Clippers 107 FINAL
Golden State 125
San Jose 3 FINAL
Boston 5
NY Rangers 4 FINAL(OT)
New Jersey 3
Toronto 5 FINAL
NY Islanders 2
Detroit 1 FINAL(OT)
Montreal 2
Arizona 3 FINAL(SO)
Nashville 4
Carolina 1 FINAL
Winnipeg 3
Philadelphia 0 FINAL
Chicago 4
Vancouver 3 FINAL
Dallas 6
Florida 4 FINAL(OT)
Colorado 3
Tampa Bay 2 FINAL(OT)
Calgary 1
Arkansas State 40 FINAL
Louisiana 55
Connecticut 10/23/14 6:00 PM
(18) East Carolina
Miami-Florida 10/23/14 7:00 PM
Virginia Tech
So Florida 10/24/14 6:00 PM
Cincinnati
Troy 10/24/14 6:30 PM
South Alabama
BYU 10/24/14 8:00 PM
Boise State
(6) Oregon 10/24/14 9:00 PM
California
North Texas 10/25/14 11:00 AM
Rice
UAB 10/25/14 11:00 AM
Arkansas
Rutgers 10/25/14 11:00 AM
(16) Nebraska
Maryland 10/25/14 11:00 AM
Wisconsin
Texas 10/25/14 11:00 AM
(11) Kansas State
Minnesota 10/25/14 11:00 AM
Illinois
Memphis 10/25/14 11:00 AM
SMU
North Carolina 10/25/14 11:30 AM
Virginia
San Jose St 10/25/14 12:00 PM
Navy
Northern Ill 10/25/14 12:00 PM
Eastern Mich
(25) UCLA 10/25/14 1:00 PM
Colorado
Akron 10/25/14 1:00 PM
Ball State
Massachusetts 10/25/14 1:00 PM
Toledo
Ohio U 10/25/14 1:00 PM
Western Mich
Ga Southern 10/25/14 1:00 PM
Georgia State
Kent State 10/25/14 1:30 PM
Miami-Ohio
Oregon State 10/25/14 2:30 PM
Stanford
Fla Atlantic 10/25/14 2:30 PM
(23) Marshall
Louisiana Tech 10/25/14 2:30 PM
Southern Miss
(1) Miss State 10/25/14 2:30 PM
Kentucky
Georgia Tech 10/25/14 2:30 PM
Pittsburgh
(22) West Virginia 10/25/14 2:30 PM
Oklahoma State
Texas Tech 10/25/14 2:30 PM
(10) TCU
Michigan 10/25/14 2:30 PM
(8) Michigan State
Boston College 10/25/14 2:30 PM
Wake Forest
Central Mich 10/25/14 2:30 PM
Buffalo
Vanderbilt 10/25/14 3:00 PM
Missouri
Old Dominion 10/25/14 3:00 PM
Western Ky
UNLV 10/25/14 3:00 PM
Utah State
Temple 10/25/14 4:00 PM
UCF
(15) Arizona 10/25/14 5:00 PM
Washington St
Texas-El Paso 10/25/14 6:00 PM
TX-San Antonio
Wyoming 10/25/14 6:00 PM
Colorado State
Syracuse 10/25/14 6:00 PM
(21) Clemson
Texas State 10/25/14 6:00 PM
ULM
(3) Ole Miss 10/25/14 6:15 PM
(24) LSU
(4) Alabama 10/25/14 6:30 PM
Tennessee
So Carolina 10/25/14 6:30 PM
(5) Auburn
(13) Ohio State 10/25/14 7:00 PM
Penn State
(20) USC 10/25/14 9:00 PM
(19) Utah
(14) Arizona State 10/25/14 9:45 PM
Washington
Nevada 10/25/14 10:59 PM
Hawaii
Montreal 10/24/14 5:30 PM
Ottawa
Saskatchewan 10/24/14 8:30 PM
Calgary
Hamilton 10/25/14 3:00 PM
Toronto
Brt Columbia 10/25/14 6:00 PM
Winnipeg
Connect with twitterConnect with facebookConnect with Google+Connect with PinterestConnect with PinterestConnect with RssfeedConnect with email newsletters

ADVERTISEMENT

ADVERTISEMENT

ADVERTISEMENT

 
Close