A recurring problem requires a bigger fix

  • Article by: PAUL BRAND
  • Updated: May 27, 2011 - 4:04 PM

NISSAN QUEST

The improved Quest will satisfy minivan fans who want maximum space and lots of cup holders.

NISSAN JUKE

It looks a bit funky, but its turbocharged engine makes it fun to drive.

Chrysler 200

It's not a class-leading car, but it's a big improvement over the old Sebring.

ACURA TL

A makeover gives the luxury sedan updated styling and sharp handling.

Q I have a 2002 Chevy S-10 with about 86,000 miles. Six weeks ago the "service engine soon" light came on. My shop determined it was fault code PO410 and replaced the air pump. Two weeks later, the light came on again, and they said it was just a loose gas cap. Two weeks later it came on again and showed PO410; my shop replaced the air pump and solenoid again. Now, five days later the light is on again. Can you help?

A I checked my Alldata automotive database and found service bulletin 04-06-04-015A, dated November 2006, that says water could cause corrosion in the air pump or vent solenoid. It calls for installing a new air pump along with a new inlet hose and solenoid tube assembly, and rerouting the hose assembly between the engine and fender so that it ends up between the battery and coolant recovery tank.

Have your shop check to make sure the correct, updated air pump was installed and the new hose and tube assembly are properly routed. Also, check the pins and terminals on the solenoid connection -- corrosion could cause an intermittent connection triggering the light.

Q I am the first and only owner of a 1986 six-cylinder Pontiac Fiero with 100,000 miles on the odometer. I keep the car in my heated garage, but it has not moved in the past three years. I pulled it out last month and went for a short drive. The "brake" warning light comes on, and I have no brakes. The pedal goes all the way down to the floor. The brake light stays on for about 15 seconds, then goes off, and I have normal functioning brakes. This happens every time I apply the brakes, but the light comes on only when the vehicle is moving. I am 74 years old and I want to be able to enjoy the car during the summer months.

A I suspect a faulty brake master cylinder. Worn or stiff cup seals in the master cylinder may be allowing a bypass leak when you first apply the brakes. Instead of hydraulic pressure expanding the cups and sealing against the cylinder wall, fluid may be bypassing the seals, allowing the pedal to travel to the floor.

Here's a quick test. With the engine running and the vehicle stationary in Park, gently, slowly and smoothly push the brake pedal down. Does it travel to the floor without engaging the brakes? Now, release the pedal, wait 15 seconds, then quickly stab the pedal firmly as if panic-braking. Does the pedal hold firm with the brakes engaged? If so, you've identified the problem with the master cylinder. A new, or rebuilt master cylinder and a complete flush and bleed of the brake system will hopefully get you safely back on the road this summer with your Fiero.

Q My 2004 Buick LeSabre has 116,000 miles on it. The last three times I have been in rush hour, after 10 minutes of stop-and-go congestion when I accelerate back to normal freeway speed the transmission bucks as it goes into first and then second gear. This problem disappears completely after I turn off the car. Unless I am in this situation, the transmission operates perfectly. I am assuming it might be a sensor.

A The "check engine" light would be on if there were a sensor problem. However, the transmission fluid temperature sensor may be commanding "limp mode" operation because of high transmission fluid temperatures. A scan tool can identify any fault codes and can read the transmission fluid operating temperature to determine if there's a problem.

Internal mechanical problems such as worn valve body components or a worn secondary clutch assembly could also create this symptom. With that many miles on the vehicle, I'd add half a can of SeaFoam Trans-Tune with the hope of eliminating the symptoms.

Motoring note

Take a moment to remember the service men and women who, through their service and sacrifice, have given us the freedom and opportunity to enjoy this Memorial Day weekend.

  • get related content delivered to your inbox

  • manage my email subscriptions

ADVERTISEMENT

New Orleans 7:25 PM
Carolina
Tampa Bay 11/2/14 12:00 PM
Cleveland
Arizona 11/2/14 12:00 PM
Dallas
Philadelphia 11/2/14 12:00 PM
Houston
NY Jets 11/2/14 12:00 PM
Kansas City
Jacksonville 11/2/14 12:00 PM
Cincinnati
San Diego 11/2/14 12:00 PM
Miami
Washington 11/2/14 12:00 PM
Minnesota
St. Louis 11/2/14 3:05 PM
San Francisco
Denver 11/2/14 3:25 PM
New England
Oakland 11/2/14 3:25 PM
Seattle
Baltimore 11/2/14 7:30 PM
Pittsburgh
Indianapolis 11/3/14 7:30 PM
NY Giants
Washington 6:00 PM
Orlando
Detroit 7:00 PM
Minnesota
New York 7:00 PM
Cleveland
Utah 7:30 PM
Dallas
Oklahoma City 9:30 PM
LA Clippers
Boston 6:00 PM
Buffalo
Winnipeg 6:00 PM
New Jersey
Los Angeles 6:00 PM
Pittsburgh
Chicago 6:30 PM
Ottawa
Philadelphia 6:30 PM
Tampa Bay
Arizona 6:30 PM
Florida
San Jose 7:00 PM
Minnesota
Anaheim 7:00 PM
St. Louis
NY Islanders 8:00 PM
Colorado
Montreal 9:00 PM
Vancouver
(2) Florida State 6:30 PM
Louisville
Troy 6:30 PM
Ga Southern
Cincinnati 10/31/14 7:00 PM
Tulane
Tulsa 10/31/14 7:02 PM
Memphis
Air Force 11/1/14 10:30 AM
Army
ULM 11/1/14 11:00 AM
Texas A&M
(19) Oklahoma 11/1/14 11:00 AM
Iowa State
Northwestern 11/1/14 11:00 AM
Iowa
(24) Duke 11/1/14 11:00 AM
Pittsburgh
Maryland 11/1/14 11:00 AM
Penn State
Wisconsin 11/1/14 11:00 AM
Rutgers
Rice 11/1/14 11:00 AM
FIU
(21) East Carolina 11/1/14 11:00 AM
Temple
UCF 11/1/14 11:00 AM
Connecticut
Boston College 11/1/14 11:30 AM
Virginia Tech
North Carolina 11/1/14 11:30 AM
Miami-Florida
Washington 11/1/14 12:00 PM
Colorado
Central Mich 11/1/14 12:00 PM
Eastern Mich
Western Mich 11/1/14 1:30 PM
Miami-Ohio
Western Ky 11/1/14 2:00 PM
Louisiana Tech
NC State 11/1/14 2:00 PM
Syracuse
Virginia 11/1/14 2:30 PM
Georgia Tech
Purdue 11/1/14 2:30 PM
(17) Nebraska
BYU 11/1/14 2:30 PM
Middle Tennessee
(10) TCU 11/1/14 2:30 PM
(20) West Virginia
Indiana 11/1/14 2:30 PM
Michigan
Florida 11/1/14 2:30 PM
(9) Georgia
Georgia State 11/1/14 2:30 PM
Appalachian St
Kentucky 11/1/14 3:00 PM
Missouri
Kansas 11/1/14 3:00 PM
(12) Baylor
Texas State 11/1/14 3:00 PM
New Mexico St
Houston 11/1/14 3:00 PM
So Florida
USC 11/1/14 3:30 PM
Washington St
Arkansas State 11/1/14 4:00 PM
Idaho
South Alabama 11/1/14 4:00 PM
Louisiana
New Mexico 11/1/14 4:30 PM
UNLV
UAB 11/1/14 6:00 PM
Fla Atlantic
(4) Auburn 11/1/14 6:00 PM
(7) Ole Miss
Old Dominion 11/1/14 6:00 PM
Vanderbilt
Colorado State 11/1/14 6:00 PM
San Jose St
Arkansas 11/1/14 6:15 PM
(1) Miss State
Stanford 11/1/14 6:30 PM
(5) Oregon
Tennessee 11/1/14 6:30 PM
So Carolina
Texas 11/1/14 6:30 PM
Texas Tech
Southern Miss 11/1/14 7:00 PM
Texas-El Paso
(6) Notre Dame 11/1/14 7:00 PM
Navy
Oklahoma State 11/1/14 7:00 PM
(11) Kansas State
Illinois 11/1/14 7:00 PM
(13) Ohio State
(14) Arizona 11/1/14 9:30 PM
(25) UCLA
California 11/1/14 9:30 PM
Oregon State
San Diego St 11/1/14 9:30 PM
Nevada
Wyoming 11/1/14 9:45 PM
Fresno State
(18) Utah 11/1/14 10:00 PM
(15) Arizona State
Utah State 11/1/14 10:00 PM
Hawaii
Bowling Green 11/4/14 7:00 PM
Akron
Toledo 11/4/14 7:00 PM
Kent State
Buffalo 11/5/14 7:00 PM
Ohio U
Northern Ill 11/5/14 7:00 PM
Ball State
(22) Clemson 11/6/14 6:30 PM
Wake Forest
Sporting Kansas City 7:00 PM
Red Bull New York
Hamilton 10/31/14 6:30 PM
Ottawa
Winnipeg 11/1/14 3:00 PM
Calgary
Brt Columbia 11/1/14 6:00 PM
Edmonton
Toronto 11/2/14 11:00 AM
Montreal
Ottawa 11/7/14 6:00 PM
Toronto
Calgary 11/7/14 9:00 PM
Brt Columbia
Montreal 11/8/14 3:00 PM
Hamilton
Edmonton 11/8/14 6:00 PM
Saskatchewan
Connect with twitterConnect with facebookConnect with Google+Connect with PinterestConnect with PinterestConnect with RssfeedConnect with email newsletters

ADVERTISEMENT

ADVERTISEMENT

ADVERTISEMENT

 
Close