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2010 chevy cobalt keeps blowing ECM TRANS fuse

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2010 cobalt blowing eco/trans fuse.
Found problem. It was a wire that was rubbing against the top metal part on the oil filter housing. The wire sleeve aka wire loom is bad about deteriorating. Then the wire rubs a hole through the insulation and causes a short. All Cobalt owners need to check the wire sleeveing,conduit, loom, what ever you happen to call it. Hope this helps. P.S. if wire breaks into. It also causes oil light and the transmission will not shift out of low gear. It will give a trans code. 1/2 and 2/3 solenoid bad.

Posted on Oct 27, 2017

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I would look for a loose wire around the fuel pump, something is shorting it out. Sorry I couldnt do better, but thats a start anyway.Good Luck

Posted on Apr 14, 2014

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Posted on Jan 02, 2017

centralvalle
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SOURCE: ecm fuse keeps blowing

just fixed this problem, change your fuel pump module, fuel sending unit shorts out on fuel level swing arm blue wire... unfortinately you must replace it as unit because of the design, fuel pump and tank guage fuel level sending unit are a one peice item, fuel tank has to come out to change unit, about a $ 700.00 repair too... fuel pump module runs about 350 to 700 $ depending on aftermarket or factory, try to find one with a lifetime warranty even if it is $ 50.00 more worth it..labor is about $ 250 to $ 400 depending on shop labor rate... definate problem though I ahve no doubt, common problem on GM... please rate my help, thanks...

Posted on Aug 06, 2009

wilsodfarm
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SOURCE: blown ecm fuse

unhook the ecm and check if the fuse does not blow,you will know if it is the ecm,Hope this helps

Posted on Sep 06, 2009

  • 64 Answers

SOURCE: the ecm fuse

Hi, this could be caused by a short circuit in the ECM or it more commonly found a short circuit in the alternator. Disconnect the battery wire from the alternator, make sure that the wire does not touch any part of the body or engine. Replace the fuse and see if it still blows the fuse. If the problem is solved, replace the alternator, if nor you will need to test the wires for a short circuit.

Posted on Nov 09, 2009

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SOURCE: i have a 1990 Chevrolet C2500 Pickup. It keeps

if it is the ecm b fuse thats blowing i would try disconnecting your oil sending unit and see if it still blows the fuse.i have seen the sending unit short out internally before and blow the fuse.if it is the ecm 1 fuse it is either a chaffed wire or one of your injectors shorted.

Posted on Feb 09, 2011

dttech
  • 4803 Answers

SOURCE: 95 chevy blazer keep blowing the ecm fuse

If it "keeps" blowing the ECM fuse, it is because you "KEEP" replacing the fuse without diagnosing and repairing the reason the fuse is blown.

Please review these articles:

Where's The Fuse?

What Else Could Be Wrong?

What To Expect From An Online Car Expert

Posted on Jun 04, 2011

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1 Answer

Why does the ecm transmission fuse keep blowing in a 2010 Chevy Cobalt?


You more than likely have a shorted wiring harness somewhere in the wiring to the transmission shift solenoids, this is a problem that is difficult for a professional to track down. Pull the harness loose and look at it, examine for wires rubbed through. You can try unplugging the harness from the transmission and see if the short goes away, if it does the shift solenoids are the problem.

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Chevy cobalt 2010 scan code po641 reduce engine power


Possible causes
- Faulty Engine Control Module (ECM)
- ECM harness is open or shorted
- ECM circuit poor electrical connection
- Shorted sensor on 5 volt circuit
help.jpg What does this mean? When is the code detected?
The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0641 Chevrolet Description
The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

Read more: http://engine-codes.com/p0641_chevrolet.html#ixzz31AP60YfR

Apr 19, 2014 | 2010 Chevrolet Cobalt

2 Answers

95 chevy blazer keep blowing the ecm fuse


If it "keeps" blowing the ECM fuse, it is because you "KEEP" replacing the fuse without diagnosing and repairing the reason the fuse is blown.

Please review these articles:

Where's The Fuse?

What Else Could Be Wrong?

What To Expect From An Online Car Expert

Jun 04, 2011 | 1995 Chevrolet Blazer

1 Answer

Have a 2001 chevy s10 with the 2.2 flex fuel, keep blowing the ecm b fuse as soon as i turn the key?


there is a short behind the dash somewhere i had an 06 cobalt kept blowing that fuse. it pissed me off couse when it wout blow i lost my boost gauge so i put a circuit breaker in it WRONG thing to do i wnt in to donut shop like always one morning came out n car was full of smoke pulled the dash apart n found that there was wires pinched between the dash and firewall costme a new wire harness and a bcm and a computer flash. live n learn iguess

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Blown ecm fuse


unhook the ecm and check if the fuse does not blow,you will know if it is the ecm,Hope this helps

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check the wiring to fuel tank something shorting. replace wires to fuel tank.

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