: Shake on idle until throttle applied



mor10am
04-16-07, 06:18 AM
Hi,

My 98 STS has started to shake on idle (rev is not stable). When I apply
a little throttle, or start driving the shaking will stop. After I stop, and put
the car in P to idle again, the shake is gone...

Any ideas?

Thanks,
Morten

Ranger
04-16-07, 12:52 PM
:welcome:
Sticking EGR valve, plugs, wires. Any codes stored?

99Classillac
04-16-07, 06:08 PM
Probably sparks plugs or plug wires, or coil packs.