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03-14-2013, 07:45 PM
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#26 | |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: 1999 silverado
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03-14-2013, 08:33 PM
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#27 |
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laying low
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,534
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Re: 1999 silverado
You mentioned having a K&N air filter. You oil those routinely. You might try cleaning the MAF sensor. Sometimes air filter oil will get on the sensor and cause some issues.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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03-14-2013, 08:58 PM
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#28 | |
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Registered User
Join Date: Dec 2009
Location: Moore, Oklahoma
Posts: 379
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Re: 1999 silverado
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 1984 chevy swb(1st truck, sold..) 2001 RCSB silverado, 5.3 with a little extra 2004 ECSB Silverado LT, 5.3 cam & bolt ons, 4l60e shift kit/stall, g80 & 3.73sMy first (1984 c10) Build |
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03-14-2013, 11:21 PM
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#29 |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: 1999 silverado
 this puppy gets high maintenance and yes those are kept up to and not the problem
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03-15-2013, 12:21 AM
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#30 |
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Registered User
Join Date: Jun 2011
Location: Calgary, AB, Canada
Posts: 146
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Re: 1999 silverado
I've noticed that you said "told" they were good. Is there any way you can check for your self? Not saying your mechanic is screwing you over, but it has happened before. If the fuel PSI is good, I would pull the MAF off clean it. If that does not work, possibly the air filter is gone? Can you describe the stumble? Is it a heavy stumble where it feels like the truck is hitting a wall, or is it a subtle stumble? Also, you didn't happen to incorrectly adjust the elevation on the computer? I am not familiar with that chip, and what it offers.
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-Justin. The past cannot be edited, or erased. Only accepted. Loud, proud and country by the grace of god! Bradley Anderson 1997-2011 |
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03-15-2013, 12:40 AM
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#31 |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: 1999 silverado
mainly say doing 60 then press pedal to floor then it has a hard stumble. when you let off a bit its ok. i clean the kn airfilter every year and the air flow sensor gets cleaned while im at it with the correct cleaner. i guess i need to check the fuel pressure myself but like i said it did this with the original pump to
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03-15-2013, 12:42 AM
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#32 |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: 1999 silverado
would the fuel pressure regulator cause this
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03-15-2013, 12:47 AM
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#33 |
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Registered User
Join Date: Jun 2011
Location: Calgary, AB, Canada
Posts: 146
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Re: 1999 silverado
Yes it can. These truck are known for bad fuel systems. Well every truck I've worked on has.
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-Justin. The past cannot be edited, or erased. Only accepted. Loud, proud and country by the grace of god! Bradley Anderson 1997-2011 |
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