Question about 1998 Volkswagen Beetle

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I have a 98 volkswagen new beetle 2.0. I'm getting no vacuum to the brake booster is there a common problem that I may be overlooking? Also idling very rough.

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6ya6ya
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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: 2001volkswagen beetle vacuum hose

Look in the area around the vacuum pump, there is also a vacuum brake booster check valve, check to make sure the lines are plugged into it, Hope this helps.

Posted on Sep 30, 2008

  • 345 Answers

SOURCE: Car Keeps Dying

possible engine coolant temp sender

Posted on Oct 15, 2008

  • 65 Answers

SOURCE: removal of dashboard assembly for 2002 volkswagen beetle

I would strongly recomend you dont tackle this job.They are NASTY.Even qualified VW techs would shy away from it.Once the dash is out the support bar and the heaterbox needs to be removed and they are a pain.Sorry i know its no help but its sound advice .Cheers

Posted on May 09, 2009

jfh1
  • 111 Answers

SOURCE: 2000 beetle cold start rough idle until it warms

Could be the fast idle sensor check to see that the vacume line is hooked up properly.

Posted on Mar 17, 2010

  • 632 Answers

SOURCE: 2000 AC CIRCUIT FOR NEW VW BEETLE

Check fuse on top of battery.

Posted on May 12, 2010

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Dtc code p1429 check engine flashing


Hi. Does the car run ok, or very rough? If the vehicle runs rough then I suspect a vacuum leak in the brake booster vacuum supply line.

Jan 08, 2014 | 2004 Volkswagen New Beetle Convertible

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I have a 1998 Volkswagen beetle the regular 2.0 I've changed all my spark plug wires and all my spark plugs well when I crank it it want stay running and it's saying my cyclinders 1,2,3 are Mis firing and...


Sounds like a possible vacuum leak-too much air entering the manifold after the throttle. Check the brake booster hose as I have replaced a lot of these due to cracking and leaking. Look around the engine and inspect all of the hoses you can see. Run the engine and listen for hissing noise that is present sometimes when you have a vacuum leak

Dec 06, 2013 | Cars & Trucks

1 Answer

How do i replace the brake booster on a 98 Mercury villager


12 specific steps will help you :
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 vacuum 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.

Sep 24, 2013 | Cars & Trucks

1 Answer

Vw golf 2000 the brake pedal is to soft when you apply it and seems like is not going to stop but it does, what is the problem?


Not sure if you have done all this.



BRAKE BOOSTER INSPECTION

Functional test:
1. With the engine stopped, Depress the brake pedal several times, then depress the pedal hard and hold that pressure for 15 seconds. If the pedal sinks, the master cylinder, brake line or a brake caliper is faulty
2. Start the engine with the pedal depressed. If the pedal sinks slightly, the vacuum booster is working. If the pedal height does not vary, the booster or the check valve is faulty

Leak Test:
1. Depress the brake pedal with the engine running then stop the engine. If the pedal height does not vary while depressed for 30 seconds, the vacuum booster is OK. If the pedal rises, the booster is faulty
2. With the engine stopped, depress the brake pedal several times using normal pressure. When the pedal is first depressed, it should be low. On consecutive applications, the pedal height should gradually rise. If the pedal position does not vary, check the booster check valve.

Check valve test:
1. Disconnect the brake booster vacuum hose at the booster.
2. Start the engine and let it idle. There should be a vacuum available. If no vacuum is available, the check valve is not working correctly. Replace the check valve and retest.

END TEST

Nov 06, 2012 | Volkswagen Cars & Trucks

2 Answers

Ok. Im going to try and explain this the best way I can. Today I turned my truck on, and when I did it started to idle bad. Like rumm rumm rumm. I have replaced the iacv one time already and it solve the...


All right, if it was a loose brake booster hose, then it would cause the rough idle due to a large vacuum leak.

Replacing the hose would get rid of the hard braking as well, due to a loss of vacuum to the brake booster which uses vacuum force to add to the force of just pushing down the brake pedal.

So that would explain both problems.

Good luck on running your 1996 GMC Sonoma without anymore problems.

Nov 02, 2010 | 1996 GMC Sonoma

2 Answers

How do i change a brake booster


from autozone.com:

  1. Disconnect the negative battery cable.
  2. Apply the parking brake.
  3. Unplug all necessary electrical connections.
  4. Remove the master cylinder from the booster and pull it off the studs, CAREFULLY! It is not necessary to disconnect the brake lines.
  5. Disconnect the vacuum hose from the check valve.
  6. If necessary, remove the brake light switch.
  7. Disconnect the booster pushrod at the brake pedal.
  8. Remove the booster mounting nuts, located on the inside of the firewall.

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Fig. Fig. 1: Vacuum booster mounting

  1. Lift off the booster and remove the gasket.

To install:
  1. Install the booster with a new gasket.
  2. Tighten the booster mounting nuts to 21 ft. lbs. (29 Nm) on all except 1996-98 models. On 1996-98 models, tighten the nuts to 26 ft. lbs. (36 Nm).
  3. Install all remaining components.

Oct 29, 2010 | 1998 Chevrolet Blazer

1 Answer

2000 VOLKSWAGEN PASSAT GLS - WHEN I PRESS MY BRAKE, THE IDLE(RPM) IS GOING UP AND DOWN. IT FEELS LIKE IT'S GOING TO DIE. ALSO, WHEN I LET GO OF MY BRAKE AND STEP ON THE GAS PEDAL IT TAKES A SEC. TO GO....


Its very possible that you have internal vacuum leak in your power brake booster.Usually you'll hear a hissing noise while depressing the brake pedal,if that noise is evident then you have a faulty booster.

Jan 29, 2010 | Volkswagen Passat Cars & Trucks

1 Answer

No brake pressure on a 99 beetle


check brake booster for leaks or the pad or disk wear

Jan 05, 2009 | 1999 Volkswagen Beetle

1 Answer

2001volkswagen beetle vacuum hose


Look in the area around the vacuum pump, there is also a vacuum brake booster check valve, check to make sure the lines are plugged into it, Hope this helps.

Aug 25, 2008 | 2001 Volkswagen Beetle

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