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Next: 1997 Blazer LS 4X4 - Tire & shock recommendat..
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Joined: Jul 28, 2008
Posts: 1
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(Msg. 1) Posted: Mon Jul 28, 2008 7:40 pm
Post subject: 1998 chevy blazer acting loopy
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|  I run a mail route with my blazer,it runs fine in the morning,but after I go about 80 miles it will bog down and buck,you can smell gas,if you turn it off and back on will resume as normal,I put on a new fuel pump and filter,no one knows what it can be,it has been on a machine but picks up nothing,I need help!!! |
>> Stay informed about: 1998 chevy blazer acting loopy |
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Since: Mar 13, 2006
Posts: 16
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(Msg. 2) Posted: Tue Jul 29, 2008 4:51 pm
Post subject: Re: 1998 chevy blazer acting loopy [Login to view extended thread Info.]
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Trish wrote:
> I run a mail route with my blazer,it runs fine in the
>morning,but after I go about 80 miles it will bog down and buck,you
>can smell gas,if you turn it off and back on will resume as normal,I
>put on a new fuel pump and filter,no one knows what it can be,it has
>been on a machine but picks up nothing,I need help!!!
The smelling of fuel is an important clue.
On my 97 4.3L there is a fuel pressure regulator under the intake
plennum. The diaghrphram ruptured and I could smell fuel, truck would
run rough but restart. While this is not common, it does happen. They
were able to fund it with a pressure tester. The repair was as I
recall several hundred. But this is only a guess. |
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External
Since: Mar 27, 2005
Posts: 24
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(Msg. 3) Posted: Tue Jul 29, 2008 8:47 pm
Post subject: Re: 1998 chevy blazer acting loopy [Login to view extended thread Info.]
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Miller wrote:
>
> Trish wrote:
>
> > I run a mail route with my blazer,it runs fine in the
> >morning,but after I go about 80 miles it will bog down and buck,you
> >can smell gas,if you turn it off and back on will resume as normal,I
> >put on a new fuel pump and filter,no one knows what it can be,it has
> >been on a machine but picks up nothing,I need help!!!
>
> The smelling of fuel is an important clue.
>
> On my 97 4.3L there is a fuel pressure regulator under the intake
> plennum. The diaghrphram ruptured and I could smell fuel, truck would
> run rough but restart. While this is not common, it does happen. They
> were able to fund it with a pressure tester. The repair was as I
> recall several hundred. But this is only a guess.
Actually it is sadly common to have a failure of the CFI "spider", and
it is a bit expensive to replace. >> Stay informed about: 1998 chevy blazer acting loopy |
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External
Since: Jul 25, 2008
Posts: 5
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(Msg. 4) Posted: Tue Jul 29, 2008 10:11 pm
Post subject: Re: 1998 chevy blazer acting loopy [Login to view extended thread Info.]
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Joined: Aug 09, 2008
Posts: 1
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(Msg. 5) Posted: Sat Aug 09, 2008 7:39 pm
Post subject: Re: 1998 chevy blazer acting loopy [Login to view extended thread Info.]
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I have a 95 Blazer, the same thing happened. I replaced the spider/reg., still had a problem. I replaced the egr valve and that fixed it.
It happened again this summer, and again I replaced the egr and that fixed the problemagain. Get a NEW egr not a used one, ebay is a good place to find one. It is fairly easy to replace. Buy the valve and look for it on the engine. >> Stay informed about: 1998 chevy blazer acting loopy |
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External
Since: Jul 18, 2008
Posts: 15
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(Msg. 6) Posted: Sun Aug 10, 2008 6:55 pm
Post subject: Re: 1998 chevy blazer acting loopy [Login to view extended thread Info.]
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On Jul 29, 5:22 pm, Trish wrote:
> I run a mail route with my blazer,it runs fine in the
> morning,but after I go about 80 miles it will bog down and buck,you
> can smell gas,if you turn it off and back on will resume as normal,I
> put on a new fuel pump and filter,no one knows what it can be,it has
> been on a machine but picks up nothing,I need help!!!
>
> --
> Posted at author's request, using moderatedhttp://www.AutoBoardz.cominterface
> Thread archive:http://www.AutoBoardz.com/1998-chevy-blazer-acting-loopy-ftopict24833...
what about water in the gas tank? or the gas cap isn't letting air in. >> Stay informed about: 1998 chevy blazer acting loopy |
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