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Power issues 2001 Sierra 1500 2WD 4.8l

Tiny
SHARKSTANK83
  • MEMBER
  • 2001 GMC C1500
My truck is acting sluggish like there is little throttle response. I can hear the engine reving but the power isnt transfering to the wheels like it should. I've checked the air intake, changed spark plugs, flushed and cleaned the fuel intake system. I'm thinking it could be clogged cats. Any other ideas that I could look at? ~Scott
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Sunday, April 8th, 2007 AT 7:32 PM

1 Reply

Tiny
RICHARDO21
  • MEMBER
  • 2 POSTS
I may be having same problem with my 1500 4.3 GMC. I changed plugs and distibuter cap, and plug wires. Engined starts fine and revs fine, when putting it in drive, it has no power to go anywhere, I barely got it home after a test drive. I submited a question and the repy I got was to do an exhaust back pressure test. It may be a cat problem. The driver side manifold is hot after running, the other side is only warm. I take it to a mechanic today. Did your problem get solved? Reply to richardo21@yahoo. Com
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Tuesday, September 11th, 2007 AT 11:46 AM

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