Car randomly turns off. (EGR?)
11-08-10, 03:26 PM
#1
Pole Position
Thread Starter
Car randomly turns off. (EGR?)
96 SC400 136K miles
At first I thought it was the tranny. That's not the case.
It mostly happens when the car is cold. I'll be at a stop light completely stopped or on the brakes to a stop light or stop sign and the car just dies decisively. No sputtering or anything. The RPM needle just drops and the car is off. It does not happen often, but it has happened on more than one occasion. When it's not happening my rpm needle seems to want to dip below the usual 500 RPM (I don't have the AC on).
It doesn't seem electrical as my gauge lights have never sputtered.
The feeling of the car turning off is similar to when I was seafoaming it and took out the vacuum hose while it was running.
What could this be?
At first I thought it was the tranny. That's not the case.
It mostly happens when the car is cold. I'll be at a stop light completely stopped or on the brakes to a stop light or stop sign and the car just dies decisively. No sputtering or anything. The RPM needle just drops and the car is off. It does not happen often, but it has happened on more than one occasion. When it's not happening my rpm needle seems to want to dip below the usual 500 RPM (I don't have the AC on).
It doesn't seem electrical as my gauge lights have never sputtered.
The feeling of the car turning off is similar to when I was seafoaming it and took out the vacuum hose while it was running.
What could this be?
11-08-10, 05:48 PM
#3
this could be any number of things-------first thing is first--check your codes---------my car was doing this for a month or so and it was hell--------no one not even lexus dealer could figure it out-------------im not going to get into the whole story but in the end it turned out to be a loose plug on the cam sensor------nightmare----good luck i hope u find the problem quickly
11-12-10, 12:44 PM
#5
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Thread Starter
Does the "malfunctioning tail light" light on your gauges ever come up? My tail lights works fine, but whenever I let go of the throttle and am at a stop the light turns on. When I throttle the light disappears. This is regardless of whether I'm actually pressing the breaks or not.
I think it's weird. It may be something electrical after all?
Do your lights dim a little every time you lower or raise your windows?
I think it's weird. It may be something electrical after all?
Do your lights dim a little every time you lower or raise your windows?
11-12-10, 01:54 PM
#6
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Does the "malfunctioning tail light" light on your gauges ever come up? My tail lights works fine, but whenever I let go of the throttle and am at a stop the light turns on. When I throttle the light disappears. This is regardless of whether I'm actually pressing the breaks or not.
I think it's weird. It may be something electrical after all?
Do your lights dim a little every time you lower or raise your windows?
I think it's weird. It may be something electrical after all?
Do your lights dim a little every time you lower or raise your windows?
My guess is alternator. Does it have oil or PS fluid dripping into it by any chance.
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