Hello,
I have a 99 GMC Yukon. The ECM 1 fuse blows every couple of weeks. I replaced the fuel pump at the suggestion of my mechanic, yet I am still having problems with the fuse blowing while driving down the road every so often. Any ideas?
Thanks, Jason
AHHH! A wire that went down to the crankshaft position sensor was randomly touching the exhaust manifold and grounding out. Easy fix! Should have checked that before replacing the fuel pump. Oh well... lesson learned!
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