JHZR2
Staff member
Hi,
As some know, Im flushing, and reflushing, and reflushing coolant in my 91 BMW 318i... Im going to G-05, and want to have all last traces of the old stuff out.
Anyway, yesterday, I did a number of flushes of the radiator - its about 50% each time. I suppose I could have spilled some coolant, or even a drop of oil (I checked my oil and a drop may have fallen off???) on my belts, all I know is that I got this TERRIBLE noise from one of my belts - either the alternator or the water pump belt made a very odd screeching type noise.
The noise sounded to me like a cross between whenyou have noisy tires on a concrete highway, and when you lock up your brakes on dry pavement... I popped the hood and listened, it was even worse (of course) from right under the hood.
At first startup, I heard it... it was very intermittent as I sat there at idle and listened for it. I found that goosing the throttle slightly made it come back - I think 1900 RPM is the point where it occurs, FWIW.
By the time I drove to work, it seemed to be gone - I couldnt get it to reproduce. It was very strange though - so loud and shreeky, Id never heard such a thing before... definitely not a PS pump type of noise, more of a tire lockup noise.
Do you think it was just some glycol on the belt, or should I be worried??? I didnt have a mechanic's stethescope, and unfortunately the WP and alternator are right next to each other... so Im hoping it is a belt noise and not the WP acting strange due to coolant change.
Any insight would be most appreciated.
Thanks,
JMH
As some know, Im flushing, and reflushing, and reflushing coolant in my 91 BMW 318i... Im going to G-05, and want to have all last traces of the old stuff out.
Anyway, yesterday, I did a number of flushes of the radiator - its about 50% each time. I suppose I could have spilled some coolant, or even a drop of oil (I checked my oil and a drop may have fallen off???) on my belts, all I know is that I got this TERRIBLE noise from one of my belts - either the alternator or the water pump belt made a very odd screeching type noise.
The noise sounded to me like a cross between whenyou have noisy tires on a concrete highway, and when you lock up your brakes on dry pavement... I popped the hood and listened, it was even worse (of course) from right under the hood.
At first startup, I heard it... it was very intermittent as I sat there at idle and listened for it. I found that goosing the throttle slightly made it come back - I think 1900 RPM is the point where it occurs, FWIW.
By the time I drove to work, it seemed to be gone - I couldnt get it to reproduce. It was very strange though - so loud and shreeky, Id never heard such a thing before... definitely not a PS pump type of noise, more of a tire lockup noise.
Do you think it was just some glycol on the belt, or should I be worried??? I didnt have a mechanic's stethescope, and unfortunately the WP and alternator are right next to each other... so Im hoping it is a belt noise and not the WP acting strange due to coolant change.
Any insight would be most appreciated.
Thanks,
JMH
