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Hesitation - '99 Silverado

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Hesitation - '99 Silverado - 10/2/2006 4:38:22 PM   
bgibson11

 

Posts: 2
Joined: 10/2/2006
Status: offline
Hey folks, new here, ran across this site and figured I'd see if you guys could give me some insight as to whatis wrong with my truck.
I have a 1999 Silverado 4x4 - 5.3 v8 - 327

Last week I was driving along where I started to get terrible hesitation during accelaration. So bad to where the truck started to just shut off, then get terrible mis fires. Eventually I changed the filter and it didn't do anything so I brought it to a garage and they diagnosed it as a bad fuel pump. Changed the pump and it ran fine for a good 300 miles. Now it has started again, just not as severe this time. Any idea, what my troubles could be?

Upon acceleration it steps on itself, and sputters, although it hasn't left me stranded yet, I feel road-side problems will occur in the near future.

By the way, service engine light is not on.
Post #: 1
RE: Hesitation - '99 Silverado - 10/3/2006 12:19:43 PM   
uncle bill

 

Posts: 289
Joined: 8/25/2006
Status: offline
It still might be a bad fuel pump. I put a new one in My '96 Tahoe and it quit after 100 miles. Did They change the Fuel pressure regulator as well? It may be that. Welcome to the forum.

(in reply to bgibson11)
Post #: 2
RE: Hesitation - '99 Silverado - 10/3/2006 12:45:55 PM   
lost_in_alabama

 

Posts: 74
Joined: 7/17/2006
Status: offline
Could there be trash in the fuel tank clogging up the fuel pump? I suggest that you replace the fuel filter, and check the filter.

(in reply to uncle bill)
Post #: 3
RE: Hesitation - '99 Silverado - 10/3/2006 1:18:05 PM   
bgibson11

 

Posts: 2
Joined: 10/2/2006
Status: offline
My bad - I should have mentioned it to begin with.. I did change the fuel filter, prior to changing the pump. Fuel pressure regulator was not changed.

(in reply to lost_in_alabama)
Post #: 4
RE: Hesitation - '99 Silverado - 10/3/2006 8:25:39 PM   
gnr90

 

Posts: 4
Joined: 9/25/2006
Status: offline
have you checked the catalytic converter? my brother's s-10 did that before he replaced the catalytic converter

(in reply to bgibson11)
Post #: 5
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