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1992 chev s10 blazer


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john miller
User

May 26, 2010, 2:53 PM

Post #1 of 5 (4629 views)
1992 chev s10 blazer Sign In

i have 4.3 s10 blazer when i start in morning it shakes runs rough and pops in muffler after i drive 6 miles and shut off at work i go back 2 hrs later start up it is smooth and no problems for rest of day did get ox sensor code any other ideas thanks for any help.


nickwarner
Veteran / Moderator
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May 26, 2010, 7:10 PM

Post #2 of 5 (4623 views)
Re: 1992 chev s10 blazer Sign In

The older OBD1 systems would pull O2 codes when you misfire alot. May be nothing wrong with sensor at all. Start with the basics, checking your cap and rotor, plugs, wires, air filter and fuel filter. Could be as simple as a tune up, may need more. But thats the starting point.


john miller
User

May 27, 2010, 8:11 AM

Post #3 of 5 (4619 views)
Re: 1992 chev s10 blazer Sign In

thanks it does act up more in wet weather.


nickwarner
Veteran / Moderator
nickwarner profile image

May 28, 2010, 1:20 AM

Post #4 of 5 (4593 views)
Re: 1992 chev s10 blazer Sign In

I would look very closely at a crack in the distributor cap or bad wires. A full tuneup if you do it yourself isn't expensive at all and can most likely cure what ails the vehicle. Especially when it is bad in damp weather your first suspect should be the ignition components.


john miller
User

May 29, 2010, 1:24 PM

Post #5 of 5 (4572 views)
Re: 1992 chev s10 blazer Sign In

i checked cap rotor wires and plugs no problems not that old it only runs bad first start in morning for about 5 miles then shut off and restarted in couple hrs it runs fine for rest of day?






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