Wierd idle when cold
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Joined: May 2003
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Wierd idle when cold
My engine stumbling has taken a new turn, what happens now when the engine is cold is that the revs drop from normal idling speed to about 100rpm.
The revs slowly drop to a point where you think the engine is gonna die, then the revs suddenly increase and go back to idling speed as if someone stepped on the gas pedal. The revs go back up WITHOUT me stepping on the gas pedal, if I do step on the gas pedal while this rev fluctuation is occuring, the engine will die. But as long as I dont touch the gas pedal the rev fluctuation goes on for a while till the engine gets warm and settles into its normal idle. This problem sometimes also shows up when the engine gets real hot.
Any ideas? Thanks.
The revs slowly drop to a point where you think the engine is gonna die, then the revs suddenly increase and go back to idling speed as if someone stepped on the gas pedal. The revs go back up WITHOUT me stepping on the gas pedal, if I do step on the gas pedal while this rev fluctuation is occuring, the engine will die. But as long as I dont touch the gas pedal the rev fluctuation goes on for a while till the engine gets warm and settles into its normal idle. This problem sometimes also shows up when the engine gets real hot.
Any ideas? Thanks.
MBWorld Fanatic!
Joined: Aug 2003
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From: Vancouver, B.C.
2002 E55 AMG
Same problem for me. When the engine was cold, I revved it to 3000RPM and when it came down, it started shaking violently. I looked at the tach and it was at 200RPM!
For some reason, the engine stalls when turning while pressing the gas?
Maybe I should let it turn without touching the gas?
For some reason, the engine stalls when turning while pressing the gas?
Maybe I should let it turn without touching the gas?
