Results 1 to 11 of 11
-
06-13-2007, 06:42 AM #1
car shaking in park or sitting still???
my 99 trans am for about a year has been shaking erratically during park or sitting still in gear. it's not a big shake but feels like your going over some small bumps in the road but your sitting still. you can feel it do this when in the car.when i stand behind the car i can hear this happen. when it shakes the sound getts quiet for like a second. almost like it's pausing.it will do this every few seconds but it's not a constant steady shaking. I can see the engine shake a little more when this happens as well. it only does this after the cars been running for about 5 minutes.when i start moving it's great very smooth and no problems at all. i just had my alternator replaced with a 150 amp b/c i was told the regulator in my stock one was bad.my husband said that would fix the shaking since the car hadn't been getting a lot of power from it and he also said he'd heard that a bad alternator being left on a car can start to cause problems with the engine since it's putting a strain on it. i checked my plugs which are about 2 yrs old and they are fine. any clues???
-
06-13-2007, 08:28 AM #2
- Join Date
- Dec 2005
- Location
- Cedar Rpaids,IA
- Age
- 44
- Posts
- 354
Red- 1998 Camaro SS
Any ses codes? If you can hook up a hand held scan tool to see if the engine is registering any miss fires or any other errors. A misfire at idle could cause your engine to shack once in a while. Do you have any after market parts on the engine i.e. cam or heads?
1998 Camaro SS Hard Coupe Bright Red #1593
Mods: Lots!!, still my daily driver except for winter
383rwhp 370rwft/lbs
1979 Corvette
Mods Lots!!, weekend cruiser
325rwhp and 320rwft/lbs
2007 Dodge Ram 1500 4x4 (Yes its got a HEMI)
Mods: Catback, BFI CAI, Winter daily driver
-
06-13-2007, 09:30 AM #3
- Join Date
- Aug 2005
- Location
- Ft. Lauderdale, FL
- Age
- 75
- Posts
- 2,706
Sebring Silver- 2000 CamaroSS
LS1 engines run slightly rough
-
06-13-2007, 09:45 AM #4
only aftermarket on the car are the air box since mine wasn't ram air and now is and the exhaust that was put on before i got the car
-
06-13-2007, 10:10 AM #5
- Join Date
- Aug 2005
- Location
- Cape Coral, FL
- Age
- 39
- Posts
- 3,100
Mystic Teal- 99 Trans Am & 01 CBR 929
what is your car idling at?
-
06-13-2007, 11:59 AM #6
around 6 or 700 rpms. it's always been that since i've had the car for the past 5 years.
-
06-14-2007, 06:33 AM #7
Sounds about normal to me for that RPM. The cars idle a bit on the rough side. Its the price you pay to have a LS1.
-Eagle
-
06-14-2007, 06:47 AM #8
thanks, I might just now be noticing the shaking b/c my car being over 118,000 miles. before 100,000 I never worried about anything going wrong and now i get worried even though i take good care of it and keep everything changed as I should.
-
06-14-2007, 06:56 AM #9
If it gets excessive with mileage that high, you might look into replacing motor and trans mounts to firm it back up again. GL!
-
06-14-2007, 08:26 AM #10
- Join Date
- Dec 2005
- Location
- Cedar Rpaids,IA
- Age
- 44
- Posts
- 354
Red- 1998 Camaro SS
I 2nd eagle's post. Check the mounts, they might just be worn out.
-
06-14-2007, 12:02 PM #11
thanks, i didn't think about that
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
my car is shaking
By camaronoob in forum V6Replies: 15Last Post: 07-01-2010, 06:05 PM -
What's shaking
By Golicous in forum New Member IntroductionsReplies: 3Last Post: 05-20-2009, 01:23 AM -
Virginia Motorsports Park Drag Racing and Car Show - PY Pontiacs In The Park
By Ed Blown Vert in forum GTOReplies: 0Last Post: 11-30-2007, 06:00 PM -
steeringwheel shaking only at 55
By ou812 in forum General HelpReplies: 2Last Post: 04-14-2006, 09:06 PM -
shaking?
By Fast95Bird in forum General HelpReplies: 1Last Post: 10-08-2005, 01:34 AM
Bookmarks