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Vacuum brake booster toyota sequoia 1984. Brake Dealer completed diagnostic test showing codes C1223,1247,and 1310. Conclusion the booster needs replacement. Must I? (about $1,000). Safety issue???

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  • Toyota Master
  • 808 Answers

Toyota Sequoia's had a lot of problems abs wise> #1 clear codes with a factory software scanner. then drive it to see what returns. I can not see a brake booster setting 3 codes that are ABS/VSC problems #2 how does the brake pedal feel If it is high and hard pedal then the booster is bad if the engine speeds rise as pedal is depress and you hear escaping air the booster is bad. #3 ABS/VSC are supplemental systems to the normal braking soit will take longer to stop and a possible skid could occur. but you will stop leave more traveling space you should be fine.

Posted on May 08, 2014

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Posted on Jan 02, 2017

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SOURCE: 2002 Toyota Sequoia power brake booster % master cylinder are bad

Mr. Clark:
It would be extraordinary for a technician to recommend a booster and a master cylinder with no previous mention from you of a possible problem in this area. In other words, the technician had no business looking at the m/cyl or the booster, unless you told him that your braking was deficient.
Here is what REALLY happened: Somewhere, I'd bet, your brake light came on, and somebody "topped off" the master cylinder, to shut the light off. Now, please understand that the brake fluid level in the master cylinder reservoir DROPS PROPORTIONALLY to the wear of the brake pads. When the tech replaced the front brake pads, he obviously had to squeeze the caliper pistons into the housings to allow the insertion of the new pads. This action forced the brake fluid from the now-compressed caliper pistons BACK into the master cylinder, and it sprayed out from under the cap, coating the cylinder and the booster. Tell that repair service that you do NOT need a booster and a master cylinder, THEY caused the problem with the fluid being everywhere. I am confident that I just saved you a significent amount of money that you do NOT need to spend. Have a great day.

Posted on Dec 29, 2008

MrScary66613
  • 1990 Answers

SOURCE: 1989 ford thunderbird std brake system vacuum booster install?

There are a Couple of Different Variations on the Boosters. Make sure that you have the Correct one First. If you do, Just work it, Some of the Rods are Removeable by the Way.

Posted on Jan 21, 2009

dsacco86
  • 1077 Answers

SOURCE: 2005 toyota 4runner brake booster

There isn't a requirement to replace a brake booster at any time unless:

1. The brake booster did go bad. ( Rare part to go bad, but not impossible)
2. There is a recall or defective part. ( in this case, the dealer shouldn't charge you)

Can't hurt to get a second opinion for another shop. Plus, they will not charge a crazy price like the dealer. There are experienced mechanics outside of the dealership.

Posted on Mar 24, 2009

  • 186 Answers

SOURCE: 1997 Ford F-350 Brake pedal gets ******* second pump

cracked vacume hose or vacume pump i had this problem with my transit mine was on back of alternater

Posted on Aug 14, 2012

  • 477 Answers

SOURCE: toyota 4 runner brake booster noise

if you can see brake fluid around the booster then yes it is most definitely not right, but sometimes these can fail without any fluid noticable, the visible fluid could mean that the brake master cylinder is failing & this will have an adverse affect on the booster power & performance, check your brake master cylinder first as this is a much simpler & easier repair than the brake booster & can be done at home on a flat drive or or street even, a Haynes manual is invaluable for the home mechanic & i recommend you get one as soon as you can as this will help you diagnose the problems with your vehicle before going to a mechanic/garage, if it is the brake booster at fault then i suggest you go to your local scrapper/breakers yard armed with tools & the Haynes/Chilton's Manual (Depending on which side of the pond you are from) & remove the brake booster from a now deceased Toyota 4Runner & remove the brake booster & master cylinder in one should only cost you a few Quid or Bucks & replace the part once your vehicle is back at home, once the parts have been replaced the brake system will need to be bled so that there is no air in the brake lines, this can be easily done with two people at home, Jack up one corner, remove that wheel & then just crack off the bleed nipple of the brake line Putting a bit of clear hose over the nipple to catch the excess brake fluid in a jug etc & have a friend push down slowly on the pedal, when only fluid comes out with no air then the system is bled for that wheel, Check the level in the brake master cylinder & repeat the process for the other 3 corners/wheels Once done your brake pedal should fell firm & Not spongy, If you get a spongy feeling when braking after this then there is still air in the brake lines & the system needs to be bled again, of course if you have done it right then your brakes should feel firm underfoot. Please don't forget to rate me, regards, Paul.

Posted on Sep 21, 2012

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1 Answer

There is a hissing noise on my 2002 Sequoia that stops when the brake pedal is hit. Do you have any idea what it is?


indicates a bad vacuum leak in the brake booster
take it to an accredited brake specialist shop for a proper diagnosis
best fix is a new booster unit

Dec 28, 2016 | 2002 Toyota Sequoia

4 Answers

1984 Honda Accord Brake Problem


well aside from the boosters you may also want to check the possitioning rotor and calipers. there is a possibility that something slipped, or leaked, check for brake fluids and try to trace where it is comming from.

the picture below shows how to disassemble the brakes of an Accord, the only special tool you will need is a ball joint fork to seperate the upper and lower ball joints. You have to remove the whole steering knuckle assembly to get to the bolts in back of the rotor and hub assembly.

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hope this helps

Aug 05, 2008 | 1984 Honda Accord

1 Answer

I have a code c1100


DTC C1100 00: Brake Booster Vacuum Sensor Performance .
Do you know what the brake booster is ?
Circuit/System Description
The electronic brake control module (EBCM) provides a power 5-volt reference to the brake booster vacuum sensor. The brake booster vacuum sensor converts the change in vacuum levels in the brake booster into a voltage signal. This signal is sent to the EBCM. The voltage signal ranges, from 0.13 to 3.30 volts depending on vacuum levels. The low reference is the return side of the sensor to ground.
Conditions for Setting the DTC
?€¢
Voltage at the brake booster sensor signal output to the EBCM falls outside the 0.13 to 3.30 volts range for more than 200 milliseconds.


?€¢
The power 5-volts reference is shorted to ground or battery positive.

Action Taken When the DTC Sets
The red BRAKE Warning indicator turns ON.
Circuit/System Verification
DTC C1100 will set as result of power brake booster vacuum sensor or circuit failure, test for power and ground circuits to the EBCM.
?‡'
Repair the power or ground circuits.





do you know what

Apr 19, 2016 | 2007 Chevrolet Tahoe

1 Answer

Why is it so hard to apply brake pedal?


_______power brake booster, check vacuum to booster and the check valve for brake booster. primary symtom is high hard pedal that requires greater then normal pedal pressure to stop car. testing booster= pump brakes several times with engine off to deplete stored vacuum. turn on engine with pushing slightly on brake pedal. you should be able to feel the pedal fade away a bit, and then become firm. But not hard. if you feel nothing at the pedal when engine starts. Brake booster is not working. Good-day! make sure vacuum is going to booster with engine running. it may just be a bad vacuum line or check valve.

Apr 30, 2014 | 1984 Buick Skyhawk

1 Answer

How to remove brake booster on 1999 Toyota Camry


The following steps will help you to replace a Toyota Camry brake booster :
1 With the engine off, step on the brake pedal several times to relieve the brake booster of vacuum.
2 Press the brake pedal down and start the engine. Verify that the brake pedal sinks slightly. Turn off engine.
3 Remove the vacuum hose from the brake booster.
4 Remove the brake lines from the master cylinder. Remove the master cylinder from the brake booster. Plug the fittings to prevent brake fluid seepage.
5 Disconnect the brake pedal from the push rod.
6 Have an assistant hold the brake booster from inside the engine compartment. Remove the nuts that hold the brake booster to the firewall. These nuts are usually located under the dash on the interior of the firewall.
7 Remove the brake booster.
8 Install the new brake booster to the firewall. Tighten the mounting nuts.
9 Connect the push rod to the brake pedal.
10 Connect the vacuum hose to the brake booster.
11 Attach the master cylinder to the new brake booster and reconnect the brake lines.
.12 Bleed the brakes at the master cylinder.

Oct 04, 2013 | Cars & Trucks

1 Answer

When the brake is applied the engine quits on a 1999 toyota sienna


Does this vehicle have power brakes? If so, then check the vacuum booster for the brakes.

It sounds like when you hit the brakes, the vacuum booster is leaking, causing the engine to stall.

Do this by unhooking it, and plugging it off where it goes to the motor, so the motor port is sealed. Don't worry about where the line plugs into the booster for now. Then, try hitting the brakes with the motor running. The brakes will be much harder to push now, as you have disconnected its booster. If it no longer stalls, then you will know that your brake booster is bad, and needs replacing.

Unless you are machanically inlined, have a good garage replace the booster. Midas will do, since they are a brake place. Used to be they tested, or checked, your car for free. Maybe they still do, but don't let them sell you anything you really don't need.

Jun 25, 2011 | 1999 Toyota Sienna

2 Answers

Where is the brake booster vacuum line on the 89 toyota camry?


Booster line will attach to back side (firewall side ) of booster chamber.

Should find a metal elbow coming out of the booster chamber that the vacuum line will slip over.

When you look at the booster chamber from the front, the location of the line should be at approx. 9 o'clock (as if looking at a clock dial)

Jan 24, 2011 | 1989 Toyota Camry

2 Answers

2002 Toyota Sequoia power brake booster % master cylinder are bad


Mr. Clark:
It would be extraordinary for a technician to recommend a booster and a master cylinder with no previous mention from you of a possible problem in this area. In other words, the technician had no business looking at the m/cyl or the booster, unless you told him that your braking was deficient.
Here is what REALLY happened: Somewhere, I'd bet, your brake light came on, and somebody "topped off" the master cylinder, to shut the light off. Now, please understand that the brake fluid level in the master cylinder reservoir DROPS PROPORTIONALLY to the wear of the brake pads. When the tech replaced the front brake pads, he obviously had to squeeze the caliper pistons into the housings to allow the insertion of the new pads. This action forced the brake fluid from the now-compressed caliper pistons BACK into the master cylinder, and it sprayed out from under the cap, coating the cylinder and the booster. Tell that repair service that you do NOT need a booster and a master cylinder, THEY caused the problem with the fluid being everywhere. I am confident that I just saved you a significent amount of money that you do NOT need to spend. Have a great day.

Dec 29, 2008 | 2002 Toyota Sequoia

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