squeel under hood
squeel under hood
After driving, noted a squeel under the hood. Not real loud. All fluids fine. After cooling off, started and ran fine. No squeel. All belts appear to be in good condition. There was no indicator of overheating. The sound was not very noticable in the car. From outside the car it was noticable.
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volvolugnut
- Posts: 6225
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How old are your idler pulleys? They can get old and before they die make noise. If they fail, they can take out your belts and do major damage when the valves hit pistons.
volvolugnut
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.
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regent
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Most likely the horses under the hood seem to be unhappy at times when you hear the squeal. 
I suggest you also check your PCV system, it's probably a failing diaphragm causing excessive vacuum in the crankcase
This is a known premature failure on our 4-cyl. engines.
Hope this helps
I suggest you also check your PCV system, it's probably a failing diaphragm causing excessive vacuum in the crankcase
This is a known premature failure on our 4-cyl. engines.
Hope this helps
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
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