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hey guys. im posting for my cousin. he has a 1991 s10 blazer. automatic. unmodded. alot of miles. at some point the 4.3 blew a rod(no oil) so the motor was rebuilt and put in. ever since then it hasnt realy run right. the only way i can explain it is that it like turns off for a split second while driving. kinda like you had a misfire but ALOT worse. the plugs and wires and filters have been changed repeatedly. well a supposedly arcing plug wire caugt fire to this lucky vehicle and it burned for a smile while. a few hoses and wires later it was back on the road. now the cutting out has gotten even worse. that fire was about 8 months ago but like 3 months ago it stareted to get worse. and in the last few days its started turning off when it cuts out some of the time. it always use to dies at a stop but now it does when driving. also his check engine light comes on randomly and his temp gauge goes from bottom to top randomly which makes his check guages light come on. does anyone know what could be doing this? any ideas? p.s. we pulled a plug just the other day and took it to shucks. the man said it wasnt running rich or lean. but the spark plug was a reddish color and he said that it was running way too hot. he checked the numbers and told us it was the right heat range for the motor.????????????????????????????????????????????
 

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~~~< Yo, How U Doin? >~~~
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I know this post is months old but ...................

It sounds like the fire took out some wires somewere and thats causing your electrical problems....
 
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