1999 Chevrolet C1500
Problem for Chevrolet 1999 C1500

Misfire & power loss




By morawskik on Aug 05, 2008

" "
  1. Engine (5.3) on my 2000 silverado misfires and losses power when on hills. Problem goes away when I step on the the gas pedal and the tranny downshifts (higher rpm). Works fine on flat grades and lower speeds (city driving). Vehicle also shakes and shudders when this problem occurs.

Clarification Request

Posted by hunterlyt on Nov 02, 2008

I have changed the fuel filter twice. The last time was about 2 weeks ago and I'm still having the same problem. Do you think that the fuel injectors could be causing both problems or just the misfires and loss of power?

Same Problem

Aug 25, 2008

-   My 99 Chevy Silverado has done the same thing for the past 2 years. I have taken it in 3 times. Each time they say there is nothing wrong with it.
They have cleaned the fuel system twice and done a general tune up once.
Now it is having problems starting. I have to hold the key down for a long 5 seconds before it catches. I will say that when they cleaned the fuel system it fixed it for about a month. I'm not sure what this means.-   hunterlyt

Solution #1

posted on Nov 02, 2008
Somewhat Helpful)

elvis81

Rank: Wiz 
Rating: 78%, 63 votes
maybe its time to replace your fuel injectors or fuel filter ?
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Solution #2

posted on Jan 26, 2009
Not Rated)

mgalik

Rank: Apprentice 
Rating: 0%, 0 votes
no mine had trouble starting it was just the fuel regulator valve
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