1995 Toyota 4Runner engine knock @ cold idle

1995 TOYOTA 4RUNNER
180,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ROCKYACOOK
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I have a new engine and have moved to where the night temperatures are between 25-35 degrees @ an elevation of 5000 ft. When I start my 4 Runner in the morning it has a loud knocking sound which stops when the idle drops. Also as I rev the engine there is a gurgling sound when I release the throttle. Is this a knock sensor or ...?
Apr 7, 2010 at 6:41 PM
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2CARPRO JACK
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The gurgling may be the air injection. The engine noise.... are you using a filter with a check valve? Those engines the filter lays on its side and will drain back into the engine overnight.The factory filters have a valve that keeps that from happening.Also you will want to use a thinner oil for the low temps... try a 5w-30 and see if it oils faster int hecold
Apr 7, 2010 at 10:14 PM