2001 Chevy Blazer ECM1 fuse

MONACO

MEMBER
2001 CHEVROLET BLAZER
6 CYL
4WD
AUTOMATIC
160,000 MILES

ECMI fuse keeps blowing. Wiggle harnesses sometimes starts back up. Usually blows while driving or on key turn.

Tuesday, August 25th, 2009 AT 12:41 PM

5 Replies

JDL

MECHANIC
16,098 POSTS

Hello, that fuse serves several different circuits, about 1/2 dozen. Injectors--ignition module--coil and a few others. That doesn't count faulty wiring or connector somewhere. I'd have to hunt and peck.

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Tuesday, August 25th, 2009 AT 1:10 PM

MONACO

MEMBER
3 POSTS

Have looked at wiring and moved them around but no obvious sign of chafing. If I knew specifically where to look it may help.

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Tuesday, August 25th, 2009 AT 2:03 PM

JDL

MECHANIC
16,098 POSTS

Yeah, it is like hunting a needle in a haystack. You might follow the harness from the fuse box, anywhere the harness might come in contact with anything, see if there is a spot that has rubbed through? You might also do an ohms test on the injectors, compare the readings. Plugs and plug wires ok?

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Tuesday, August 25th, 2009 AT 3:14 PM

MONACO

MEMBER
3 POSTS

Thanks for the help. Right now it is working but scared to drive in case it breaks down. Is there any solution to finding solution if it goes on me on the road. Unplugging other fuses etc? Unfortunately I have a 500 mile trip home I have to make next week and where I am there are no mechanics etc.

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Wednesday, August 26th, 2009 AT 9:59 AM

JDL