Question about 1984 Ford F 150

1 Answer

Play in break pedal

Break pedal won't always return not very stiff still have brakes but not very responsive believe it might be power booster but don't know how to check

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 2,920 Answers

Check the fluid in your master cylinder 1st if it were the power booster the brakes would be very hard to might also check your wheel cylinders abd calipers to make sure they are ok

Posted on Jan 14, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My break pedal is stiff and won't press down on a 2011kia sorento and won't start

problem brake booster
massive vacuum leak upsetting air /fuel ratio preventing starting and no brake assistance from the booster

Jul 30, 2016 | Cars & Trucks

1 Answer

Brake system repairs, 1997 plymouth voyager

usually a stiff brake pedal is good, but if it is excessively stiff, it is usually caused by the brake booster

Jun 16, 2012 | 1997 Plymouth Grand Voyager

1 Answer

Break pedal is hard to push

its usually a bad brake booster that makes pedal hard or stiff. just type in on computer, ' power brake symtoms " in search bar. this should lead you in the right direction.

May 01, 2012 | 1992 Buick LeSabre

1 Answer

My brakes randomly lock up on my 2004 chevorlet impala

If your brakes were "locking up" as you describe, it would be interesting to see. Brakes rarely self-apply. Lockup may occur after you apply the brakes as they may stick and won't release, but to have them just apply while driving is almost impossible. What you are describing sounds more to me like a massive vacuum leak. What this will do is reduce intake vacuum and steal all the power from the engine, and the brake pedal will go stiff as a result of the power brake booster losing its vacuum assist. You need to find the source of the vacuum leak and correct it.

Dec 07, 2011 | 2004 Chevrolet Impala

1 Answer

1986 5.0 brake problems...replaced brake booster twice and master cylinder there is no power to the brakes...the brakes are stiff while the care is off....but when the car is on the brake pedal...

Did you check and adjust the push rod that comes out of the booster, and in turn pushes the rod in the master cylinder??
If its too long, the piston in the master cylinder won't move back far enough to pull brake fluid in.
If it's too short, it won't contact the piston at all.

It doesn't move as much as you might think.
If instructions came with the new booster, they may address this, and how to adjust it.

Aug 29, 2011 | 1986 Ford Mustang

2 Answers

Spongy brake pedal apears to be leaking fluid from brake booster

check or adjust brake pedal, check brake booster or replace new one, check pedal return spring and bushing, check all wheel cylinder or replace, check brake shoe or brake pad, check brake fluid or replace,.

Apr 03, 2011 | 1999 Pontiac Sunfire

1 Answer

I have a 2000 lincoln ls and the brake pedal is stiff and i dont hear the abs activating even while emergency braking

If the pedal is stiff but the brakes still operate OK the power brake booster is not operating correctly. Most of the time the problem is a clogged, cracked or split vacuum line from the mainfold to the booster.

Mar 22, 2011 | Lincoln LS Cars & Trucks

2 Answers

Stiff brake pedal and hissing sound when brakes are applied (98 k1500)

you have a vacuum leak from the brake booster probably down by the pedal if you can hear it inside the truck.

Jul 09, 2009 | 1998 Chevrolet K1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

97 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

5626 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides