Noticed oil leaking

2004 CHEVROLET TRAILBLAZER
1,920,000 MILES • 4.2L • 6 CYL • 4WD • AUTOMATIC
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BEASTMODE666
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Hi, so recently I have been experiencing engine oil loss and coolant loss. When I open the hood you can see some coolant or oil by the alternator and time band. Not sure what’s going on. if I can get some suggestions that would be great.
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Oct 26, 2019 at 1:04 PM
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KASEKENNY
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Hi,

If I am not mistaken this looks like there is oil kind of all over the place. If this is the case, I suspect the front crank seal is leaking. This leaks on the crankshaft pulley and then gets flung all of the front of the engine and serpentine belt.

The best way to confirm this is clean the entire engine so that you are starting fresh and then run the engine and lift the hood and watch to see if you can see it getting whipped around.

If you confirm this, I included the procedure on how to replace it.
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Oct 26, 2019 at 6:41 PM