bad engine shake, low power - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mattro · 09-26-2011, 05:42 PM

its a friend of mines car, heres he story, shakes at idle, better when at speed. much better, checked the pcv, im leaning towards engine mounts, any ideas? i have no xp with ka's

bone sock ka24de, never molested, 87k miles.

Banana_Cute · 09-27-2011, 04:28 AM

vacuum lines.

Shakes as if its almost dying?

psychos13 · 09-27-2011, 06:47 PM

vacuum leak

proxx · 09-27-2011, 10:58 PM

checked the simple things ground wires spark plugs etc? i had a real bad rough sputtering idle, pulled the plugs and cylinder three and four were both fouled. course i spent an hour checking all the vacuum lines and connections for leaks, but sometimes its just something quick cheap and easy.

beto300zx · 09-27-2011, 11:05 PM

One of your injectors is out, it happens on ka's, I've had that problem in every single ka24de (5) now.

Kom3t · 09-28-2011, 09:57 PM

I gave the same problem on my ka24e, I just twist the injector a little and it's fine... Bur you can't to that to the de, my guess is bad injector,

What's the downfall of running that injector for a while?

modulation · 09-29-2011, 02:41 PM

Quote:

Originally Posted by mattro

its a friend of mines car, heres he story, shakes at idle, better when at speed. much better, checked the pcv, im leaning towards engine mounts, any ideas? i have no xp with ka's

bone sock ka24de, never molested, 87k miles.

Pull 1 spark plug wire at a time when the car is on.
If the problem doesn't get worse when you pull one plug vs the others focus on that cylinder. Either bad injector as other have said or it's not getting spark.

mattro · 10-01-2011, 07:06 PM

ok, she was coming over to have the inj checked an it stopped shaking. we replaced the plugs, none were unusually burnt, damaged etc, is it possabl the inj was clogged and it magically freed itsself? i told her to stop running crap fuel, and she hasn't had a problem since.

EsChassisLove · 10-01-2011, 07:09 PM

$10 says he forgot to mention it sounds like a boxer engine and its missing lol

mattro · 10-23-2012, 07:36 PM

so. i took the vc off because i heard a weird grinding, thought a rocker had come loose or somthing, and the timing chain guide had broke and was sitting on the top chain, grinding down. it had been there for a while. i freed that up and havent had any problem with it since, now at 107k. oh and she is now my fiancee

Alexzepeda · 10-25-2012, 11:36 AM

Molested?? ha. I would guess motor mounts. I have the same problem and I know for sure its that.

09-26-2011, 05:42 PM	#1
mattro Zilvia Junkie Join Date: Dec 2008 Location: henrietta, ny Age: 32 Posts: 478 Trader Rating: (4) Feedback Score: 4 reviews	bad engine shake, low power its a friend of mines car, heres he story, shakes at idle, better when at speed. much better, checked the pcv, im leaning towards engine mounts, any ideas? i have no xp with ka's bone sock ka24de, never molested, 87k miles. __________________ grip like roots, float like leaves. wtb s13 sus.

09-27-2011, 04:28 AM	#2
Banana_Cute Zilvia FREAK! Join Date: Jan 2011 Location: Irvine, So. Cal. Posts: 1,338 Trader Rating: (16) Feedback Score: 16 reviews	vacuum lines. Shakes as if its almost dying? __________________ Simplicity is the key to brilliance

09-27-2011, 06:47 PM	#3
psychos13 Zilvia FREAK! Join Date: Dec 2010 Location: Long Beach, Ca Age: 29 Posts: 1,184 Trader Rating: (13) Feedback Score: 13 reviews	vacuum leak __________________ UNDER DESTRUCTION!: 91 s13 Top Secret Build

09-27-2011, 11:05 PM	#5
beto300zx Leaky Injector Join Date: Jun 2005 Location: sonoma ca Age: 35 Posts: 128 Trader Rating: (2) Feedback Score: 2 reviews	Ka problem One of your injectors is out, it happens on ka's, I've had that problem in every single ka24de (5) now.

10-01-2011, 07:06 PM	#8
mattro Zilvia Junkie Join Date: Dec 2008 Location: henrietta, ny Age: 32 Posts: 478 Trader Rating: (4) Feedback Score: 4 reviews	ok, she was coming over to have the inj checked an it stopped shaking. we replaced the plugs, none were unusually burnt, damaged etc, is it possabl the inj was clogged and it magically freed itsself? i told her to stop running crap fuel, and she hasn't had a problem since. __________________ grip like roots, float like leaves. wtb s13 sus.

09-27-2011, 10:58 PM	#4
proxx Join Date: Sep 2011 Location: savannah Age: 32 Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	checked the simple things ground wires spark plugs etc? i had a real bad rough sputtering idle, pulled the plugs and cylinder three and four were both fouled. course i spent an hour checking all the vacuum lines and connections for leaks, but sometimes its just something quick cheap and easy.

09-28-2011, 09:57 PM	#6
Kom3t Leaky Injector Join Date: Oct 2008 Location: Saint Paul, MN Posts: 119 Trader Rating: (2) Feedback Score: 2 reviews	I gave the same problem on my ka24e, I just twist the injector a little and it's fine... Bur you can't to that to the de, my guess is bad injector, What's the downfall of running that injector for a while?

10-01-2011, 07:09 PM	#9
EsChassisLove Nissanaholic! Join Date: Jan 2011 Location: San Diego Age: 32 Posts: 2,090 Trader Rating: (26) Feedback Score: 26 reviews	$10 says he forgot to mention it sounds like a boxer engine and its missing lol __________________ IG/TikTok-ThatS14_Z06guy

10-23-2012, 07:36 PM	#10
mattro Zilvia Junkie Join Date: Dec 2008 Location: henrietta, ny Age: 32 Posts: 478 Trader Rating: (4) Feedback Score: 4 reviews	so. i took the vc off because i heard a weird grinding, thought a rocker had come loose or somthing, and the timing chain guide had broke and was sitting on the top chain, grinding down. it had been there for a while. i freed that up and havent had any problem with it since, now at 107k. oh and she is now my fiancee __________________ grip like roots, float like leaves. wtb s13 sus.

10-25-2012, 11:36 AM	#11
Alexzepeda Join Date: Sep 2011 Location: Omaha Age: 31 Posts: 20 Trader Rating: (0) Feedback Score: 0 reviews	Molested?? ha. I would guess motor mounts. I have the same problem and I know for sure its that.

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