# shaking!!! **URL:** \ **Category:** SON240sx Automotive\ **Created:** [September 11, 2006, 6:49pm UTC](https://forums.speedlife.net/t/shaking/99805 "2006-09-11T18:49:02Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 11, 2006, 6:49pm UTC](https://forums.speedlife.net/t/shaking/99805/1 "2006-09-11T18:49:02Z")
well i just put back in my engine after cleaning up my engine bay. and now my car doesnt run properly. the car shakes alot, and when i press on tha pedal tha rpms will go like it should, then when i let go of tha gas, it will fall down to ~200rpm for few seconds then return back to a little lower than 700 rpms. and still shakes alot. im leaning towards a vacuumn leak, but im unsure. the car ran perfectely fine before i took it out. i also had a fuel leak on the lines, but now is fixed, and i also have a exhaust leak on the cat. but i dont think tha exhaust leak would make my engine shake soo much and have a large effect on the idle. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [September 11, 2006, 7:59pm UTC](https://forums.speedlife.net/t/shaking/99805/2 "2006-09-11T19:59:12Z")
sounds like your only running on 2 or 3 cylinders check fuel and spark ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 11, 2006, 8:53pm UTC](https://forums.speedlife.net/t/shaking/99805/3 "2006-09-11T20:53:44Z")
i have spark on each cylinder, and have fuel going through the lines. not sure if its going through each cylinder though. i will test that probably tommorow. but i dont think its running on 2 or 3 cylinders though, since i can rev it normally, and hit redline easily. ---
**Author:** ![Intense\_Motorsports](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/intense_motorsports/32/5593_2.png) [@Intense\_Motorsports](https://forums.speedlife.net/u/Intense_Motorsports)\ **Post date:** [September 11, 2006, 9:00pm UTC](https://forums.speedlife.net/t/shaking/99805/4 "2006-09-11T21:00:50Z")
what did u do to the engine when u took it out ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 11, 2006, 9:01pm UTC](https://forums.speedlife.net/t/shaking/99805/5 "2006-09-11T21:01:59Z")
notthing. i took it out and put it back in the way it came out. before that everything is fine. ---
**Author:** ![s1495](https://avatars.discourse-cdn.com/v4/letter/s/b2d939/32.png) [@s1495](https://forums.speedlife.net/u/s1495)\ **Post date:** [September 12, 2006, 2:08am UTC](https://forums.speedlife.net/t/shaking/99805/6 "2006-09-12T02:08:23Z")
Check vac hoses, PCV hose. Did you remove distributor? check if your timing changed… ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 12, 2006, 5:42am UTC](https://forums.speedlife.net/t/shaking/99805/7 "2006-09-12T05:42:37Z")
wheres the PCV hose? and no tha timing was never touched. ---
**Author:** ![KoukiS14](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/koukis14/32/5522_2.png) [@KoukiS14](https://forums.speedlife.net/u/KoukiS14)\ **Post date:** [September 12, 2006, 8:14am UTC](https://forums.speedlife.net/t/shaking/99805/8 "2006-09-12T08:14:44Z")
Then its either vacuum or electrical related. ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 13, 2006, 1:27pm UTC](https://forums.speedlife.net/t/shaking/99805/9 "2006-09-13T13:27:45Z")
ok new thing… it doesnt shake as much but when i gas my car it dies. when i gas it slowly it goes though. weird… HELPP!!! ---
**Author:** ![Mista\_Sparkoh](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@Mista\_Sparkoh](https://forums.speedlife.net/u/Mista_Sparkoh)\ **Post date:** [September 13, 2006, 2:31pm UTC](https://forums.speedlife.net/t/shaking/99805/10 "2006-09-13T14:31:24Z")
I had the same shaking, turned out it was one of the ignition coil packs weren’t firing. As for the rpm dropping, I’m having the same problem. I believe that when the engine placed in neutral after it runs, the rpms drop and something prevents it from dropping too low causing the car to stall. Maybe it’s the IACV? Sorry to hijack your thread, but does anyone know where the IACV is located in the SR20DET? ---
**Author:** ![a\_ahmed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/a_ahmed/32/5411_2.png) [@a\_ahmed](https://forums.speedlife.net/u/a_ahmed)\ **Post date:** [September 13, 2006, 3:36pm UTC](https://forums.speedlife.net/t/shaking/99805/11 "2006-09-13T15:36:14Z")
I was once doing 200mph and the car was shaking WTF?! ---
**Author:** ![Mista\_Sparkoh](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@Mista\_Sparkoh](https://forums.speedlife.net/u/Mista_Sparkoh)\ **Post date:** [September 13, 2006, 3:51pm UTC](https://forums.speedlife.net/t/shaking/99805/12 "2006-09-13T15:51:43Z")
> [@a\_ahmed](#): > > I was once doing 200mph and the car was shaking WTF?! 200 mph is roughtly 321 km/h and you can’t possibly do that with a 240 let alone any fast production car so stop bullsh!tting and the reason why the car is shaky is because aerodynamics sucks in your car and/or your frame is not tolerable at that kind of speed ---
**Author:** ![a\_ahmed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/a_ahmed/32/5411_2.png) [@a\_ahmed](https://forums.speedlife.net/u/a_ahmed)\ **Post date:** [September 13, 2006, 7:15pm UTC](https://forums.speedlife.net/t/shaking/99805/13 "2006-09-13T19:15:54Z")
rotflmao you actually took me serious 😛 lol 🙂 ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 13, 2006, 7:16pm UTC](https://forums.speedlife.net/t/shaking/99805/14 "2006-09-13T19:16:28Z")
lol… anyone can answer my problem? ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 15, 2006, 3:32pm UTC](https://forums.speedlife.net/t/shaking/99805/15 "2006-09-15T15:32:18Z")
> [@FUNGC](#): > > ok new thing… it doesnt shake as much but when i gas my car it dies. > > when i gas it slowly it goes though. > > weird… HELPP!!! ok that is fixed now, turned out that i dont have enough fuel soo thats why it died when i gased it. but the shaking problem is stilll there!!! HELPPP!!! ---
**Author:** ![90sohc](https://avatars.discourse-cdn.com/v4/letter/9/47e85d/32.png) [@90sohc](https://forums.speedlife.net/u/90sohc)\ **Post date:** [September 17, 2006, 8:47pm UTC](https://forums.speedlife.net/t/shaking/99805/16 "2006-09-17T20:47:56Z")
is it just shakey at idle. cus its possibly you have a leak in the intake system after the MAF the car cant sence that its gettin to much air or why it is running lean so it adjusts fuel to compensate when there is no need its just a thought but it is a possible problem good luck ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 17, 2006, 8:53pm UTC](https://forums.speedlife.net/t/shaking/99805/17 "2006-09-17T20:53:14Z")
hmmm… i never checked that could be a possibility cause i threw my intake hose in my sideyard and not sure if i possibly have cracked it… i will check that out tommorow. thnx for tha advice and yea the car doesnt just shake during idle. it shakes if you keep it running at any rpm for a while. if you get what i mean. (e.g 2000rpm for few seconds or more) oyeaa and the exhaust smells more like gas than a usual car. and smokes more. but it is not white or black its just grey, and it spitted out alot of carbon. ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 19, 2006, 3:48pm UTC](https://forums.speedlife.net/t/shaking/99805/18 "2006-09-19T15:48:28Z")
well today i checked for leaks and cracks on my intake system, and i dont have any. i took out the IAC valve and cleaned it and tried to unjam the screw to adjust the idle but it is too stuck. i put everything back together and now it still shakes. and once its warmed up it idles at 400-500 rpms now… seems to be getting worse. ---
**Author:** ![90sohc](https://avatars.discourse-cdn.com/v4/letter/9/47e85d/32.png) [@90sohc](https://forums.speedlife.net/u/90sohc)\ **Post date:** [September 19, 2006, 4:12pm UTC](https://forums.speedlife.net/t/shaking/99805/19 "2006-09-19T16:12:42Z")
any check engine light? ---
**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\ **Post date:** [September 19, 2006, 4:24pm UTC](https://forums.speedlife.net/t/shaking/99805/20 "2006-09-19T16:24:20Z")
nope. just after it stalls the check engine light goes on. [Next page](https://forums.speedlife.net/t/shaking/99805.md?page=2)