Author Topic: 1996 S10 4.3 - Flashing Check Engine Light  (Read 375 times)

anttutt

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1996 S10 4.3 - Flashing Check Engine Light
« on: April 24, 2012, 01:27:24 AM »
I have a 96 S10 with a 4.3 and the check engine light is flashing. It has a cylinder 1 misfire and I think an o2 sensor code. I could be wrong on the 02 sensor code, it's been a while since I pulled the codes. It idles very rough. Sometimes to the point where it will drop down so far in RPMs the check gauge light will come on for just a split second. It doesn't do that all the time, just usually after a lot of driving. Every 3 or 4 (maybe more, it varies) weeks the coolant will get low. Not sure if it's related or not since it's not mixing in with the oil. It has the normal amount of pressure at the schrader valve and a spark at the first cylinder. Does it sound like an injector or maybe a gasket? I am getting a suspended license soon (long story) and I was thinking it would be the perfect time to get it worked on.
 

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losmaster

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Re: 1996 S10 4.3 - Flashing Check Engine Light
« Reply #1 on: April 24, 2012, 10:02:57 PM »
Check the codes again and post the numbers......yeah, when the cel is flashing thats a pretty serious misfire......like mess up the converter serious, if not repaired.

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