Question about 2001 Hyundai Elantra
Knocking on cold start every morning for 2 - 3minutes
This can be several things. Loose rod bearings, valve lifters, piston pin play, etc.
Two things you can try. Rislone and then an oil change. Then synthetic oil in the proper weight for your engine.
The synthetic oil flows better and if you have oil related problems it should help.
But if you have mechanical problems, it will not fix them.
I believe you have a 10 year/100,000mile warranty.for that engine. Consult Hyundai about the current problems.
Posted on Oct 16, 2013
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Posted on Jan 02, 2017
SOURCE: What causes my Hyundai Sonata
if the oil is worn out then you will suffer no preesure,hence the knock,try changing the oil and filter.thenn if the knock persists,you may need to rebuild your engine.
Posted on Oct 09, 2010
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