Question about 2001 Chevrolet Venture
Code indicated that the #3 cylinder misfired, checked plug and wire, seems to be ok. Replaced coil pack still continues to misfire. Could the injector cause the miss and or the sensor?
The injector is a good possibility, although you should check for spark in the wire first, as the electrical is the weakest link in the system. Put a spare plug in the end of the wire with the plug resting on metal, then have someone crank the van to see if you have spark that far, test and replace spark plug, (do not get shocked!) then look into a new injector or a good cleaning.
Posted on Jul 17, 2009
The dealership has access to tools that area great fro this diagnosis. There is a tool called an injector "pop" tester used in conjunction with a fuel pressure gage. This is the most accurate method to diagnose a faulty injector. Also, Kent-Moore tools has a set of injector noid lights to confirm a good injector signal from the computer. The injectors on your model are easily broken and you should use great care in handling them when removing or unplugging the connectors. If your spark and compression is good, you have isolated the problem to the fuel system. Best of luck!
Posted on May 02, 2013
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Posted on Jan 02, 2017
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