Question about 2004 Chevrolet TrailBlazer

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Nocking when cold

Hi ya i have a 1997 proton coupe 1.8 16v evolution and when i start the car it starts to knock when cold, then after its been run it goes quite again, iv not that long ago change oil and had new radiator placed in could it be the oil presher switch being falty .

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  • Thomas Kobs May 11, 2010

    what weight oil did you use? sometimes the thick oil will take sometime to circulate through the engine causing a knocking sound. does it last for very long?

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Hi

Get a can of STP in there quick, and have your oil pressure tested with a master pressure gage, from cold this will tell you if you have a problem.

Good Luck !

A FixYa rating would be appreciated thanks !!

John.

Posted on Feb 07, 2009

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