Car start high pitch noise when very engine 95-ish degrees - 1999 E300 TurboDiesel
07-15-2021, 03:12 AM
#1
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Mercedes E300 TurboDiesel
Car start high pitch noise when very engine 95-ish degrees - 1999 E300 TurboDiesel
Hi everyone
I live in Spain.. it gets a bit hot here. Plus my heavy foot, on 30-35C outside, easy to stop the car with engine at 90C
Noticed if I stop for 5 minutes to drop something off, as expected I start the car with a few degrees higher engine temperature.
At the end of the engine start sequence, there is a high pitch noise for 1-3/4 seconds, then stops.
If I stop the car and start again, no more noise.
Some valve or hose somewhere is leaking from pressure.
Any input helps!
PS: I do alot of start stops, car is 1999 but with only 65000km. I had the starter motor replaced just to be safe...problem still there.
I live in Spain.. it gets a bit hot here. Plus my heavy foot, on 30-35C outside, easy to stop the car with engine at 90C
Noticed if I stop for 5 minutes to drop something off, as expected I start the car with a few degrees higher engine temperature.
At the end of the engine start sequence, there is a high pitch noise for 1-3/4 seconds, then stops.
If I stop the car and start again, no more noise.
Some valve or hose somewhere is leaking from pressure.
Any input helps!
PS: I do alot of start stops, car is 1999 but with only 65000km. I had the starter motor replaced just to be safe...problem still there.
07-15-2021, 09:33 AM
#2
Out Of Control!!
you can help locate the noise by opening the hood you put your nose inside the engine compartment and then have someone start the car-------which part of the engine do you think the noise comes from
