# Ok,got engine mounts in now car doesn't idle....f#$\*!!!!
**URL:** https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171
**Category:** Canada Nissan Automotive
**Created:** [June 1, 2005, 3:32am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171 "2005-06-01T03:32:22Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@geniusevil](https://forums.speedlife.net/u/geniusevil)
#### Post date: [June 1, 2005, 3:32am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/1 "2005-06-01T03:32:22Z")
So i finished getting the new Nismo motor mounts in,during the install the engine was leaned back towards the firewall.So i’m guessing something got squished from the engine leaning towards the firewall or something got unplugged during the upward motion.
Anyways the engine revs up to 4000 rpm as soon as i start it,stays there for a few seconds then drops down past idle and stalling.
Anyone experience a similar problem before and any clues as to what it may be?
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### Author:  [@DeathBy240](https://forums.speedlife.net/u/DeathBy240)
#### Post date: [June 1, 2005, 6:50am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/2 "2005-06-01T06:50:52Z")
Check your vaccum lines?
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### Author:  [@Nis240](https://forums.speedlife.net/u/Nis240)
#### Post date: [June 1, 2005, 7:36am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/3 "2005-06-01T07:36:34Z")
Brake booster line probably came lose.
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### Author:  [@jdms13rhd](https://forums.speedlife.net/u/jdms13rhd)
#### Post date: [June 1, 2005, 11:53am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/4 "2005-06-01T11:53:12Z")
MAF???
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### Author:  [@geniusevil](https://forums.speedlife.net/u/geniusevil)
#### Post date: [June 1, 2005, 4:26pm UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/5 "2005-06-01T16:26:45Z")
brake booster line wins
must have missed them late last night while i was shaking lika a crackhead determined to get the mounts in like it was my next piece of rock
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### Author:  [@Jay\_Nismo](https://forums.speedlife.net/u/Jay_Nismo)
#### Post date: [June 1, 2005, 11:56pm UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/6 "2005-06-01T23:56:03Z")
> [@geniusevil](#):
>
> brake booster line wins
>
> must have missed them late last night while i was shaking lika a crackhead determined to get the mounts in like it was my next piece of rock
i don’t mean to sound like a total newb, but ummm where is this line?? is this the line that comes from the master cylinder??
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### Author:  [@RS13](https://forums.speedlife.net/u/RS13)
#### Post date: [June 2, 2005, 6:28am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/7 "2005-06-02T06:28:26Z")
Its a Vacuum line that runs from the brake booster to the back of the intake manifold. Make braking easier
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### Author:  [@Jay\_Nismo](https://forums.speedlife.net/u/Jay_Nismo)
#### Post date: [June 2, 2005, 11:07am UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/8 "2005-06-02T11:07:21Z")
> [@RS13](#):
>
> Its a Vacuum line that runs from the brake booster to the back of the intake manifold. Make braking easier
And that line can also affect idle?? I’m gonna have to check that line out. Thanks!!
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### Author:  [@Apexi240](https://forums.speedlife.net/u/Apexi240)
#### Post date: [June 3, 2005, 5:07pm UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/9 "2005-06-03T17:07:15Z")
> [@silvia\_180sx\_\_](#):
>
> [quote=RS13]Its a Vacuum line that runs from the brake booster to the back of the intake manifold. Make braking easier
And that line can also affect idle?? I’m gonna have to check that line out. Thanks!![/quote]
Yes. Because your manifold and all hoses must be sealed. If not, an unwanted air leak makes the car idle faster. Your exposing atmospheric air to a lower pressure in the manifold.
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### Author:  [@Kramer240sx](https://forums.speedlife.net/u/Kramer240sx)
#### Post date: [June 14, 2005, 10:31pm UTC](https://forums.speedlife.net/t/ok-got-engine-mounts-in-now-car-doesnt-idle-f/139171/10 "2005-06-14T22:31:56Z")
Yeh…my PCV valve in my corsica cracked right in half during startup once (fed from the manifold in my car
)…had to get home. took hose from friends garage, looped it from the opening for the PCV valve, to the test opening (where you can hook up a vacuum gauge) they’re DIRECTLY across from eachother (it’s like a T) so I had a hose loop going…funniest looking thing ever.