recently tried to troubleshoot with no success my wind./washer pump and caused a dead short with inline switch . discovered the alternator was either on its way out or it took a hit . replaced alt. van ran real rough , just about stall etc. , just as though the computer was trying to correct itself. it still had the Alt. gauge flashing and showing 10V or less . hmm ! checked for battery chargeing and it dropped only when started . turned van off and checked all fuses in and out of box . all very good .tried to restart the van and realized no Service Engine Soon light come up . the instrument dash , guages etc. light up . no brake , SES , oread the manual I have and it appears as a possible blown PCM .?? tried a OBD1 test at the ALDL block and nothing comes up on dash . can't even get a code 12 on key ON position . can someone please help to to confirm if its a blown PCM or not ? self employed and this is the work van , had to temporarily use another truck Iown to keep afloat . LOL
2006-12-11
09:12:23
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2 answers
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asked by
smokinsiggy
1
in
GMC