Idle issue

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Jpreciado18
Posts: 3
Joined: Tue Nov 13, 2018 8:15 pm
Car: 97 Nissan Hardbody

Idle issue

Postby Jpreciado18 » Tue Nov 13, 2018 8:40 pm

I have a 97 nissan hardbody and ran into an issue today. My rpm needle started to bounce. It only happens when I press on the break. What could it be? PLEASE HELP it's my daily!!!


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AZhitman
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Posts: 69594
Joined: Mon Apr 29, 2002 2:04 am
Car: 72 240Z RB25, 63 Bluebird RHD, 63 NL320, 67 WRL411, 67 SPL311, 68 510 SR, 73 240Z, 77 620 SR20, 89 Pao, 98 S14, 12 Titan CC 4x4.
Location: Surprise, Arizona
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Re: Idle issue

Postby AZhitman » Tue Nov 13, 2018 8:51 pm

Sounds like a vacuum leak. Check your line that goes from manifold to brake booster.

Jpreciado18
Posts: 3
Joined: Tue Nov 13, 2018 8:15 pm
Car: 97 Nissan Hardbody

Re: Idle issue

Postby Jpreciado18 » Tue Nov 13, 2018 9:15 pm

Could it be the brake booster check valve went bad. I have no leaks

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AZhitman
Administrator
Posts: 69594
Joined: Mon Apr 29, 2002 2:04 am
Car: 72 240Z RB25, 63 Bluebird RHD, 63 NL320, 67 WRL411, 67 SPL311, 68 510 SR, 73 240Z, 77 620 SR20, 89 Pao, 98 S14, 12 Titan CC 4x4.
Location: Surprise, Arizona
Contact:

Re: Idle issue

Postby AZhitman » Thu Nov 15, 2018 10:19 pm

Definitely. That's a vacuum leak as well, just internal.

How are you checking for vac leaks?

Jpreciado18
Posts: 3
Joined: Tue Nov 13, 2018 8:15 pm
Car: 97 Nissan Hardbody

Re: Idle issue

Postby Jpreciado18 » Fri Nov 16, 2018 3:52 pm

I used carburetor cleaner and it's the break booster that's leaking from inside the cabin

User avatar
AZhitman
Administrator
Posts: 69594
Joined: Mon Apr 29, 2002 2:04 am
Car: 72 240Z RB25, 63 Bluebird RHD, 63 NL320, 67 WRL411, 67 SPL311, 68 510 SR, 73 240Z, 77 620 SR20, 89 Pao, 98 S14, 12 Titan CC 4x4.
Location: Surprise, Arizona
Contact:

Re: Idle issue

Postby AZhitman » Fri Nov 16, 2018 7:57 pm

Excellent. Easy replacement!


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