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01 Extreme Misfire

6 messages,  Last post on Jul 20, 2009 at 4:57 AM

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What is this discussion about? Chevrolet S-10, Chevrolet S-10 Blazer, Truck

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#4 of 6 "95" S-10 Blazer multiple misfires by delmont70 Jul 16, 2009 (3:11 pm)
Hello..... It started out with a fuel pressure problem although the computer read O2 sensors. My mechanic and I changed both sensors,EGR valve,Spider gear, put in new plugs and wires,coil wire and changed the fuel pump, cause my new one was faulty after 5 months. Now it reads multiple misfires(in which I didn't have before the fuel problems)and you can here it skip and hesitate, especially when you step on it. My mechanic has gone over all the wiring 4 - 5 times and still can't find anything. I'm confused and he is stumped right now. He's had the Blazer for two weeks now...HELP!!!!
#5 of 6 Misfire Repair Problem Solved by waterggoo Jul 18, 2009 (11:53 am)
There are many things that could cause a misfire, after checking the basic tune up items and you still have a problem continue reading. The cam sensor has nothing to do with drivability or misfire it is used only to send misfire info to the PCM. I may be wrong but you may have a weak or broken valve spring. They are about $10.00 each or a set for about $65.00. A bent push rod or the ends of the push rod could have chips or be worn. The cam lobe(s) could also be worn. Replies to this message: delmont70 (Jul 20, 2009 4:57 am)
#6 of 6 Re: Misfire Repair Problem Solved [waterggoo] by delmont70 Jul 20, 2009 (4:57 am)
Replying to: waterggoo (Jul 18, 2009 11:53 am) Thanks for the info, but get this. Apparently they just don't make parts like they use too. After considerable thinking, he came up with the idea that it must be the new distributor he put on, so he took the new one off and traded it back for a better one and it took care of the problem. Now the Blazer runs like new(it ought too, I have all new parts in it..lol..) Thanks again for the suggestions...

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