86 s10 blazer keeps blowing ECM B fuse - The 1947 - Present Chevrolet & GMC Truck Message Board Network

75chevyeyesore · 04-22-2005, 02:14 AM

Every once in a while when I start the Blazer I turn the key and it runs for about 2 seconds then dies, then will not start back up, due to the 10amp fuse marked ECM B. I also get no trouble code from the diagnostic mode.
This seems to happen randomly once a week or so out of nowhere. I have a 1986 2.8L V6 S10 Blazer. If anyone has any idea how i can narrow down the problem, there are tons of sensors and relays and crap. Could it be the oil pressure sensor? It also has TBI and a manual trans, 4x4. thanx

04-22-2005, 02:14 AM	#1
75chevyeyesore Registered User Join Date: Apr 2004 Location: Reno, Nevada Posts: 11	86 s10 blazer keeps blowing ECM B fuse Every once in a while when I start the Blazer I turn the key and it runs for about 2 seconds then dies, then will not start back up, due to the 10amp fuse marked ECM B. I also get no trouble code from the diagnostic mode. This seems to happen randomly once a week or so out of nowhere. I have a 1986 2.8L V6 S10 Blazer. If anyone has any idea how i can narrow down the problem, there are tons of sensors and relays and crap. Could it be the oil pressure sensor? It also has TBI and a manual trans, 4x4. thanx



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