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99 GMC Yukon - Blown ECM 1 fuse
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CarGuru > 4 x 4 > 99 GMC Yukon - Blown ECM 1 fuse 16 April 2005 20:09:04

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99 GMC Yukon - Blown ECM 1 fuse

Jason Norred 16 April 2005 06:32:18
 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


Add comment
Elbert 16 April 2005 07:20:23 permanent link ]
 
I had the ECM fuze blow on my 92 K1500k, turned out to be one
of the wires feeding the injectors grounding out on the air clearner
housing.

On the 92 model and similar year models the 4 wires that feed the two
TBI injectors can get crimped between the air clener housing and the
throttle body...over time they can ground out. I would have never
given this much thought before, but when it happend to me I asked
around and sure enough its a common problem. (at least to the GM
mechanics).

I too repalced my fuel pump on a roll of the dice "fix", which was
worth doing but did not fix the problem.

On Fri, 15 Apr 2005 21:32:18 -0500, "Jason Norred"
<norred@grandecom.n­et> wrote:
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>

---
Elbert Clarke
elbert.clarke@**ade­lphia.net
remove ** to email

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Jason Norred 16 April 2005 09:36:58 permanent link ]
 Hmmmm, seems like that might be a reasonable fix... I'll start digging
around in the wiring tomorrow... See what I find...

Thanks!

"Elbert" <elbert.clarke@**ad­elphia.net> wrote in message
news:go01615k9j19qn­nmj3n6nbdg0dr5rdgcse­@4ax.com...>
I had the ECM fuze blow on my 92 K1500k, turned out to be one> of the wires feeding the injectors grounding out on the air clearner> housing.>
On the 92 model and similar year models the 4 wires that feed the two> TBI injectors can get crimped between the air clener housing and the> throttle body...over time they can ground out. I would have never> given this much thought before, but when it happend to me I asked> around and sure enough its a common problem. (at least to the GM> mechanics).>
I too repalced my fuel pump on a roll of the dice "fix", which was> worth doing but did not fix the problem.>
On Fri, 15 Apr 2005 21:32:18 -0500, "Jason Norred"> <norred@grandecom.n­et> wrote:>
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
often. Any ideas?> >
Thanks,> >Jason> >
---> Elbert Clarke> elbert.clarke@**ade­lphia.net> remove ** to email>


Add comment
Jason Norred 16 April 2005 20:09:04 permanent link ]
 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!

"Jason Norred" <norred@grandecom.n­et> wrote in message
news:11619fdhf6jcjf­e@corp.supernews.com­...> Hmmmm, seems like that might be a reasonable fix... I'll start digging> around in the wiring tomorrow... See what I find...>
Thanks!>
"Elbert" <elbert.clarke@**ad­elphia.net> wrote in message> news:go01615k9j19qn­nmj3n6nbdg0dr5rdgcse­@4ax.com...> >
I had the ECM fuze blow on my 92 K1500k, turned out to be one> > of the wires feeding the injectors grounding out on the air clearner> > housing.> >
On the 92 model and similar year models the 4 wires that feed the two> > TBI injectors can get crimped between the air clener housing and the> > throttle body...over time they can ground out. I would have never> > given this much thought before, but when it happend to me I asked> > around and sure enough its a common problem. (at least to the GM> > mechanics).> >
I too repalced my fuel pump on a roll of the dice "fix", which was> > worth doing but did not fix the problem.> >
On Fri, 15 Apr 2005 21:32:18 -0500, "Jason Norred"> > <norred@grandecom.n­et> wrote:> >
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> > >
---> > Elbert Clarke> > elbert.clarke@**ade­lphia.net> > remove ** to email> >


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CarGuru > 4 x 4 > 99 GMC Yukon - Blown ECM 1 fuse 16 April 2005 20:09:04

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