s13 shakes during idle in low rpms?!?!?! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

isixphill · 10-20-2009, 10:29 AM

i have a 1992 s13 fb

during idle my car will shake?.. nothing violent but a very noticable shake everyone who rides in my car comments about it

and after driving around town i will start to get a head ache

what makes this weird is its only during idle/low rpms while driving it smooths out and feels normal

it shakes up to 1400rpm then goes smooth

i have surched this problem and heard everything from sparks/misfire to exhaust clog..but to no avail nothing fixed it

please help thanks ALOT!!!!!

wow-thats-a-cool-car · 10-20-2009, 10:55 AM

timing or dle screw ot maybe motor mounts?

SBCsx · 10-20-2009, 11:22 AM

I had the same problem on my hatch one of the cylinders was misfiring check your distributor/replace or check sparks to see which one is misfiring. You should change your motor mounts as well mine were done.

lbsam · 10-20-2009, 11:29 AM

did you just buy this car? we need more details.. solid motor mounts tend to do this.. so if you just bought it check those.. it could be all of the above ^

lazysk8er2 · 10-20-2009, 12:52 PM

check your injectors one could be malfunctioning as in leaking or clogged. the o rings could also be messed up.

disconnect each injector while idling. if you see no change in rpm drop then thats your culprit

nissandr1ft · 10-20-2009, 01:04 PM

Mine did that for a while on my first S13 when the O2 sensor died.... have you checked for codes?

isixphill · 10-20-2009, 01:30 PM

i just changed all the spark plugs 3days ago

i bought the car 3 months ago and if it was the motor mounts wouldnt it shake hard as i decelerate or apply throttle?

ill check the injectors asap

stuff i forgot to mention:
i have been burning oil (exhaust smells bad).... seems like from cylinder #2 because when i changed the sparks #2 was all gunkie n built up on the threads and even on the bolt part too

one time i added injector cleaner and gas tank cleaner into my gas tank and the problem went away for a week or so??

91white_ka · 10-20-2009, 02:32 PM

Shakes like a vibration? Or shakes like a sputter?

isixphill · 10-21-2009, 09:38 AM

OK i think the problem might be a misfire

because......... last night i had to give my friend a ride to work and it was shaking while i was waiting for them and as i left my place...butttttttt after i dropped em off i went on a little cruz around town and when i started coming home i noticed at a light the shaking went away and it was smooth again????

yes its gone for now but how do i keep it away this is the second time its came n gone?

Ivebeenconverted · 10-21-2009, 10:18 AM

sea foam this thing, check the mounts, spark plugs, timing if you can. and might wanna check the fuel pump see the condition of the pump/tank i have rust in my tank and thats what my car does and my car is a fresh swap and it had NO problems in my s14

lazysk8er2 · 10-21-2009, 05:53 PM

Quote:

Originally Posted by isixphill

one time i added injector cleaner and gas tank cleaner into my gas tank and the problem went away for a week or so??

Quote:

yes its gone for now but how do i keep it away this is the second time its came n gone?

by checking your injectors and changing them if needed lol

ericb382 · 10-21-2009, 08:21 PM

Quote:

Originally Posted by isixphill

i just changed all the spark plugs 3days ago

i bought the car 3 months ago and if it was the motor mounts wouldnt it shake hard as i decelerate or apply throttle?

ill check the injectors asap

stuff i forgot to mention:
i have been burning oil (exhaust smells bad).... seems like from cylinder #2 because when i changed the sparks #2 was all gunkie n built up on the threads and even on the bolt part too

one time i added injector cleaner and gas tank cleaner into my gas tank and the problem went away for a week or so??

Have you compression/leakdown tested it? Burning oil + shaking could be worn/damaged rings. Easy to rule out with a simple test....

10-20-2009, 10:29 AM	#1
isixphill Leaky Injector Join Date: Feb 2009 Location: greater seattle Age: 30 Posts: 97 Trader Rating: (0) Feedback Score: 0 reviews	s13 shakes during idle in low rpms?!?!?! i have a 1992 s13 fb during idle my car will shake?.. nothing violent but a very noticable shake everyone who rides in my car comments about it and after driving around town i will start to get a head ache what makes this weird is its only during idle/low rpms while driving it smooths out and feels normal it shakes up to 1400rpm then goes smooth i have surched this problem and heard everything from sparks/misfire to exhaust clog..but to no avail nothing fixed it please help thanks ALOT!!!!!

10-20-2009, 11:22 AM	#3
SBCsx Zilvia Member Join Date: Dec 2007 Location: CA Age: 32 Posts: 188 Trader Rating: (5) Feedback Score: 5 reviews	I had the same problem on my hatch one of the cylinders was misfiring check your distributor/replace or check sparks to see which one is misfiring. You should change your motor mounts as well mine were done. __________________

10-20-2009, 01:04 PM	#6
nissandr1ft Zilvia Member Join Date: Sep 2004 Location: Clayton, NC Age: 38 Posts: 284 Trader Rating: (0) Feedback Score: 0 reviews	Mine did that for a while on my first S13 when the O2 sensor died.... have you checked for codes? __________________ ------------------------- www.carolinanissans.com -------------------------

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10-20-2009, 10:55 AM	#2
wow-thats-a-cool-car Post Whore! Join Date: Mar 2008 Location: California Posts: 2,663 Trader Rating: (6) Feedback Score: 6 reviews	timing or dle screw ot maybe motor mounts? __________________

10-20-2009, 11:29 AM	#4
lbsam Zilvia Member Join Date: Sep 2007 Location: ▌║║║▌║││║ ║█ Posts: 209 Trader Rating: (12) Feedback Score: 12 reviews	did you just buy this car? we need more details.. solid motor mounts tend to do this.. so if you just bought it check those.. it could be all of the above ^

10-20-2009, 01:30 PM	#7
isixphill Leaky Injector Join Date: Feb 2009 Location: greater seattle Age: 30 Posts: 97 Trader Rating: (0) Feedback Score: 0 reviews	i just changed all the spark plugs 3days ago i bought the car 3 months ago and if it was the motor mounts wouldnt it shake hard as i decelerate or apply throttle? ill check the injectors asap stuff i forgot to mention: i have been burning oil (exhaust smells bad).... seems like from cylinder #2 because when i changed the sparks #2 was all gunkie n built up on the threads and even on the bolt part too one time i added injector cleaner and gas tank cleaner into my gas tank and the problem went away for a week or so??

10-20-2009, 02:32 PM	#8
91white_ka Banned from the Marketplace Join Date: Apr 2009 Location: New Orleans, La Age: 32 Posts: 615 Trader Rating: (5) Feedback Score: 5 reviews	Shakes like a vibration? Or shakes like a sputter?

10-21-2009, 09:38 AM	#9
isixphill Leaky Injector Join Date: Feb 2009 Location: greater seattle Age: 30 Posts: 97 Trader Rating: (0) Feedback Score: 0 reviews	OK i think the problem might be a misfire because......... last night i had to give my friend a ride to work and it was shaking while i was waiting for them and as i left my place...butttttttt after i dropped em off i went on a little cruz around town and when i started coming home i noticed at a light the shaking went away and it was smooth again???? yes its gone for now but how do i keep it away this is the second time its came n gone?

10-21-2009, 10:18 AM	#10
Ivebeenconverted Banned from the Marketplace Join Date: Sep 2009 Location: Okc Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	sea foam this thing, check the mounts, spark plugs, timing if you can. and might wanna check the fuel pump see the condition of the pump/tank i have rust in my tank and thats what my car does and my car is a fresh swap and it had NO problems in my s14