i own a 2000 buick century custom. a couple months ago i had oil in my coolant/antifreeze so i had emptied it out cleaned and had put it back. well since that day my car wont start and now pops the IGN 0: cluster, pcm,& bcm 10a fuse. i have replaced the ignition switch, fixed the ignition column, flipped the starter, checked the fuse box yet it still keeps popping.i will be tracing wires to look for a short or grounded wires. any suggestions on what to do?

Asked by Sep 22, 2017 at 01:08 AM about the 2000 Buick Century Custom

Question type: Maintenance & Repair

i own a 2000 buick century custom. a couple months ago i had oil in my
coolant/antifreeze so i had emptied it out cleaned and had put it back. well
since that day my car wont start and now pops the IGN 0: cluster, pcm,&
bcm 10a fuse. i have replaced the ignition switch, fixed the ignition column,
flipped the starter, checked the fuse box yet it still keeps popping.i will be
tracing wires to look for a short or grounded wires. any suggestions on what
to do?

3 Answers

You have a cracked cylinder head or block

7,835

hopefully it is just a headgasket.

1,530

I don't think the oil in the coolant has anything to do with the fuse. I suspect the people that did the work damaged a wire or connection while changing the coolant. Also the oil may actually be transmission fluid since the transmission fluid is cooled in the radiator....a crack in the transmission cooler would leak into the coolant. I would take it to a different shop and have it looked at again and they may also find the blown fuse problem

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