Automotive

Car shaking when stopped

  • Last Updated:
  • Sep 14th, 2007 4:00 pm
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Deal Addict
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Dec 3, 2006
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Car shaking when stopped

Hi,
for a while now, my car started to shake (very jerky) when stopped at lights.
It doesn't seem to shake when moving, and less shaky when in neutral or park.
Maybe a problem with engine mount?
Any RFD kind of mechanics in Mississauga? I work near Dixie/Eglinton.
My car is 2000 Saturn.
16 replies
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Apr 12, 2005
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Toronto
Do you have an RPM meter in your car? Is your car idling really low?
[OP]
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Dec 3, 2006
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RPM meter reading's pretty much the same as before, although needle fluctuates a bit when shaking.
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Nov 9, 2004
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Toronto wrote:
Sep 13th, 2007 4:11 pm
Do you have an RPM meter in your car? Is your car idling really low?
^ May be the cause of the problem...engine is having a problem keeping the required RPM to idle...

Or you may want to check your fuel pump, fuel may be lacking when you're at a stop...
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Mar 21, 2007
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Markham
What's the mileage on the car and when did you last have the spark plugs replaced?

Being a Saturn, I'd also suspect a slight leak in the head gasket ($$$), a small leak can cause a misfire when at idle but the engine will smooth out at higher RPM.
Sr. Member
Dec 28, 2002
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Most likely not the engine mount, if it is an engine mount you will feel it when driving and making sharp turns, because say your side mount broke and its not really holding in and you make a sharp turn or go on a bump you will feel a bit of the engine jump.

Could be the fuel pump / filter, fuel isnt getting to the motor unless you press the pedal which means when your driving its fine but when your stopped in gear it shakes more than P and N because P and N is only idle mode.
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Jul 5, 2004
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Is it shaking while braking, or only when actually stopped?
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Nov 2, 2006
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actually, it might be the engine mount. i had the same thing happen to me in an older camry.

but could also be other things too. i think engine mount is easy for a mechanic to check, no!??
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Shaner wrote:
Sep 13th, 2007 4:37 pm
Is it shaking while braking, or only when actually stopped?
The car shakes only when it's actually stopped.
It's getting close to 140k, and I never had spark plugs replaced yet (I think 150k replacement per owner's manual)... I noticed that car shakes less with a/c on as well.

Any recommended mechanics/shop near Dixie/Eglinton in Mississauga?
Deal Addict
May 27, 2003
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Could be a faulty EGR valve. If the valve is stuck open, you can get a very rough idle, and that will cause the car to shake when stopped.
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Dec 10, 2004
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Kanata
check for intake manifold gasket problem. Apparently, the Dexcool used by GM will eat away at this.
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Mar 6, 2005
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jl001 wrote:
Sep 13th, 2007 7:14 pm
The car shakes only when it's actually stopped.
It's getting close to 140k, and I never had spark plugs replaced yet (I think 150k replacement per owner's manual)... I noticed that car shakes less with a/c on as well.

Any recommended mechanics/shop near Dixie/Eglinton in Mississauga?
When the A/C on the RPM is usually higher to compensate the load from the A/C Compressor.
number84 wrote:
Sep 13th, 2007 4:49 pm
actually, it might be the engine mount. i had the same thing happen to me in an older camry.

but could also be other things too. i think engine mount is easy for a mechanic to check, no!??
I also agree this might be worth checking out. My car was involved in an accident a couple years ago and the person hit it from the side. This broke one of the engine mounts. Insurance repaired the car but not the engine mount. The car shook horribly when idleing (stopped), you could see the vibrations if you put a water bottle in the cup holder. When driving it wasn't bad at all.

Anyway I obviously complained and they replaced the mount, it's now silky smooth.
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Dec 26, 2005
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Mississauga, ON
jl001 wrote:
Sep 13th, 2007 7:14 pm
The car shakes only when it's actually stopped.
It's getting close to 140k, and I never had spark plugs replaced yet (I think 150k replacement per owner's manual)...
Are you saying that after 7 years, and 140 K the car engine has never been tuned up - plugs, wires, air filter, pvc valve, etc. changed? I would think it is somewhat overdue.

Normally that rough idling is from engine misfiring, and usually corrected with an engine tune up.
Dec 31, 1969
About 10 years ago my parents had purchased a 1989 Mazda 626, it was just a temporary car but we kept it for about 5-6 years and then broke down. Well what happend was the timming belt was worn out and the mechanic that checked it out (my fathers cousin) didn't say repace it soon, so that went and then it did damage to the engine and a whole lot of things ruined.
Anyways that car had the same problem. The car would shake, while stopped at a red light. When in neutral or park the car would be fine. No one could really find the problem. The only thing people would say is maybe there is a crack in the engine or a transmission problem. Still to this day I don't know what the exact problem was, if we still had the car I would of loved to check it out and find out what the problem was. Only advice I could give you is to take it to a shop and get it checked out.
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Sep 14, 2006
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i had a similar problem when i had a 1991 accord. the rpm gauge kept fluctuating when i stop. replaced some regulator for 60 bucks for the rpm and it was fine after.
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