Question about 2006 Buick Grand National

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Regarding the vaccum braking system

Hi i am sunil . i am in final year of my engineering . i want history and photos of the above mentioned topic for giving technical seminar regarding this

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May I suggest that you go to Howstuffworks.com-"Auto Channel"

1.Howstuffworks- "Auto Channel"
http://auto.howstuffworks.com/
Scroll down with your eyes, and look at the left column. I would like to suggest you click on ->
Auto Parts & Systems

Under the heading -> Explore These Categories,
I would like you to click on -> Brakes
Now click on each heading, to peruse the different categories involved with the automotive braking system.

Forgive me if these are subjects you have knowledge of already, but in your statement of engineering, I didn't see Automotive Engineering listed. I believe the entire automotive braking system will have be understood, before one can lecture on the vacuum braking system itself.

This is the start, of the Howstuffworks article of How Power Brakes Work, (Vacuum Braking System),
http://auto.howstuffworks.com/auto-parts/brakes/brake-types/power-brake.htm



Posted on May 10, 2009

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2004 4Runner stalls when coming to a stop


Cold be several things. First I would replace the air filter, clean the throttle body and idle air control motor. Use brake clean. Next I would go after the fuel filter and check fuel pressure..After this check engines codes. Go into history to find old codes.

Dec 28, 2014 | Cars & Trucks

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I have kun 15 r 2kd ftv engine hilux when I apply the brake engine check light is on


vaccume system is wrong perhaps a loose vaccume tube
or a sensor defo a job for the ECU diag ...

Dec 21, 2014 | Cars & Trucks

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When i hit the brakes car shuts off, already replaced the brake switch


Hi, It sounds like your brake master cylinder survo is leaking causing the vacume from your engine to drop to low. You can pull the vaccum line off the survo and block the line properley then start your car and pump the brakes. DONOT DRIVE CAR with vaccum line off your brakes will be VERRY POOR.

Jul 23, 2012 | 1995 Ford Crown Victoria

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Hi I own a 2008 Hyundai Accent, diesel(D4FA) engine.Read on the net that the brake fluid should be replaced at abt. 2 years.At the company service shop they told me that for this operation is needed a...


The special vaccum they are talking about virtually sucks the new brake fluid through as it is forcing the old fluid out hence not allowing air into the lines. If air gets into the brake fluid lines this is when you can get brake failure.

Nov 25, 2010 | 2006 Hyundai Accent

1 Answer

Where is the emergency brake vaccum hose located


its just above the pedal, there should be a little lever that you can manually take the brake off in case the vauum can is bad or disconnected. the vac can is attached to that linkage.

Jul 24, 2010 | 1994 Cadillac DeVille

2 Answers

Engine rumbles hard


Sounds like it maybe a vaccum leak because when you apply the brake you brake booster uses vaccum to assist in braking so maybe theres not enough vaccum (air) going into the engine so its causing it to stall. Thats just a guess

Aug 31, 2009 | 1999 Mitsubishi Galant

2 Answers

I have 3 ipc codes what does ipc stand for 98 cadillac eldorado


IPC stands for Instrument panel control, here is a typical code repair flow chart, this is for example only and has nothing to do with your car..
P083 = 24x signal high.

P107 = Instrument panel control )IPC) to computer (PCM) data problem.

P137 = Loss of Automatic braking system (ABS) to Traction control system (TCS).

What you need to do is CLEAR all these codes from the computer and see which ones return.

Perform this test.

1. Ignition key ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER (^) buttons on your climate control panel for 3 seconds and release them.

3. Diagnostic codes such as above will appear with the word HISTORY or CURRENT for each code.

4. The codes will stop when you see PCM?

5. Push and release the HI(^) button and you will see PCM DATA?

6. Push and release the LO(v) button and you will see PCM DATA?

7. Continue to push and release the LO (v) button until you see PCM CLEAR CODES?

8. Push and release the HI(^) button until you see PCM CODES CLEAR.

9. Turn OFF the ignition and wait 3 minutes and try and start the car. If the car starts and the light comes back ON, Turn OFF the car and repeat steps 1 thru 3 and let me know what codes you get and if they are HISTORY or CURRENT.

10. When you see PCM?, Turn OFF ignition key.

11. Let me know what codes you get and if they are HISTORY or CURRENT.



---------- FOLLOW-UP ----------

QUESTION: this is what happen when it did what you told me what to do.
P047 History,P107 History,No IPC Code, P83 History,P137 History, A047 Current, No Sir Codes, T072 History,No Russ, PCM?
ANSWER: You did not follow the directives correctly . If you had, You would NOT have any HISTORY CODES.

Try it again and follow these directives EXACTLY:

1. Ignition key ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER (^) buttons on your climate control panel for 3 seconds and release them.

3. Diagnostic codes such as above will appear with the word HISTORY or CURRENT for each code.

4. The codes will stop when you see PCM?

5. Push and release the HI(^) button and you will see PCM DATA?

6. Push and release the LO(v) button and you will see PCM DATA?

7. Continue to push and release the LO (v) button until you see PCM CLEAR CODES?

8. Push and release the HI(^) button until you see PCM CODES CLEAR. WAIT 3 seconds and then proceed to 9.

9. Turn OFF the ignition and wait 3 minutes and try and start the car. If the car starts and the light comes back ON, Turn OFF the car and repeat steps 1 thru 3 and let me know what codes you get and if they are HISTORY or CURRENT.

10. When you see PCM?, Turn OFF ignition key.

Aug 14, 2009 | 1998 Cadillac Eldorado

2 Answers

Transmission problem


the vacuum modulator that the vacuum hose connectes to at the transmission has a ruptured rubber diaphram, replace the vacuum modulator and the vacuum hose.

Jul 01, 2009 | 1992 Ford Explorer

2 Answers

1999 Subaru Brake problem-master cylinder/power booster?


Hi there. If you have determined that the brake system doesnt have any leaks in the lines or at the calipers or brake cylinders, I would start by checking for vaccum to the brake booster first. There should be a large vaccum hose going from the power booster down to the top back of the engine. If this got unhooked or broken, your brakes will feel like old manual brakes rather than power. Make sure you have good suction by unhooking one end of this line with the engine running and place your hand over it to see if it has suction. GT would be the sporty version of the car and usualy has an emblem either on the fender or rear bumper saying GT. If you dont see this you probably have the L series.

Mar 15, 2009 | 1999 Subaru Legacy

1 Answer

1992 Ford Festiva GL with automatic trans.--- ignition control module contact


Hi!
Try to remove fusible links from the connection, clean with aerosol electronic contact cleaner(both sides of the connection) close the female side of the connecting terminal and reconnect.
Alternatively just spray connections with above mentioned cleaner, or replace links with alternative from another vehicle that uses heavy duty fuses with same amperage rating.
Visit your local car breaker for a variety vehicles to source a suitable fuse assembly or enquire at your local (non agent) spares outlet.
Regards
Phillip

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