My brake pedal if firm when the motor is not running but when I start the motor the pedal is spongy. I bleed the brakes. Any ideas what it could be?

Asked by Oct 21, 2013 at 09:58 PM about the 2006 Lincoln Mark LT 4WD

Question type: Maintenance & Repair

1 Answer

9,065

How spongy, too spongy. When the engine is off the brake booster is not assisting you therefore the pedal is stiff. When running the booster helps you apply force to the brake cylinder and the pedal will move futher and more line pressure is created. Is the pedal traveling to far? Has the pedal movement changed? Has brake performance been effected.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Brake pedal fade 3 answers

    No brake issue, compressed driver's cylinder completely in, reassembled all. Now pedal fades to floor. no leaks, no hissing. any ideas?

    1996 Lincoln Mark VIII 2 Dr LSC Coupe

    -

    Maintenance & Repair

  • no brake fluid to rear calibers linclon mark 7 88 model 3 answers

    tried to bleed from right rear and no fluid. i opened all bleeders first so they wwould drain the old out brakes were real hard when i started now ive got all lines closed trying to bleed but now ...

    1988 Lincoln Mark VII LSC

    -

    Maintenance & Repair

  • Lincoln mark viii brake issue. 2 answers

    I was driving to work last week, and while I was driving my brake pedal just started traveling all the way to the floor. My abs, and brake warning light are always on now, and I seem to only rece...

    1993 Lincoln Mark VIII 2 Dr STD Coupe

    -

    Maintenance & Repair

  • 1993 Lincoln Town car, no brake lights but other lights work, and fuel pump gauge not working. 3 answers

    I lost the brake lights on my Town car, and another issue is that my fuel gauge isn't reading correctly. With the brake lights, only the brake lights do not work. My hazards, reverse, and turn signa...

    1993 Lincoln Town Car Signature

    -

    Maintenance & Repair

  • Spongy brakes 2 answers

    I just put new pads on my car now my brake pedel goes to the floor and is very spongy. Have bleed all the lines with no bubbles. Any ideas?

    2001 Ford Explorer Sport 4WD

    -

    Maintenance & Repair

Search Lincoln Mark LT Questions

Lincoln Mark LT Experts

#1 John Leone
John Leone
Reputation 140
#2 John Don Menz
John Don Menz
Reputation 50
#3 Rowefast
Rowefast
Reputation 30
View All

Related Models For Sale

Used Ford F-150
3,436 Great Deals out of 206,231 listings starting at $1,273
Used Lincoln Navigator
147 Great Deals out of 6,067 listings starting at $1,995
Used GMC Sierra 1500
1,175 Great Deals out of 58,309 listings starting at $2,495
Used Chevrolet Silverado 1500
2,693 Great Deals out of 148,971 listings starting at $995
Used Cadillac Escalade EXT
38 Great Deals out of 782 listings starting at $4,000
Used Dodge Ram 1500
549 Great Deals out of 13,019 listings starting at $1,800
Used Cadillac Escalade
385 Great Deals out of 10,994 listings starting at $2,995
Used Toyota Tundra
707 Great Deals out of 28,577 listings starting at $2,500
Used Lincoln MKZ
201 Great Deals out of 13,594 listings starting at $3,038
Used Ford F-250 Super Duty
484 Great Deals out of 42,909 listings starting at $2,850
Used Chevrolet Avalanche
291 Great Deals out of 5,939 listings starting at $2,400
Used Lincoln MKX
220 Great Deals out of 13,363 listings starting at $5,638
Used Ford Expedition
625 Great Deals out of 23,202 listings starting at $1,100
Used Chevrolet Tahoe
1,099 Great Deals out of 31,960 listings starting at $1,495

Used Cars For Sale

2008 Lincoln Mark LT 4WD For Sale
5 listings starting at $18,985
2007 Lincoln Mark LT 4WD For Sale
29 listings starting at $11,588
2006 Lincoln Mark LT 4WD For Sale
5 Great Deals out of 121 listings starting at $8,995