Question about 2001 Chevrolet Silverado 1500
Had it tested and computer reports a vacume leak in the emission system??? any sugesstions i have not foud any thing obvious.
Just a loose vacuum line can cause a problem. What I have done in the past is cut just the tip of each rubber vacuum line(that is if there is enough) to reassure the line has a tight fit on the fitting. I don't know if this was any help or not ?
Posted on Nov 09, 2008
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Posted on Jan 02, 2017
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The information below was complied by me, it explains what causes the check engine light to come on and the process of finding the cause.
When the yellow Check Engine light (or Service Engine Soon) is turned on, the systems computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible system faults (the gas cap is just one of them) that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen/Oriley and Autozone parts stores (USA only) do this testing for free.
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