2000 gmc 5.7 power loss

Asked by CPW442 Feb 17, 2016 at 04:04 PM about the 2000 GMC Sierra 2500 2 Dr SLE 4WD Standard Cab LB HD

Question type: General

I have a 2000 GMC 4x4 5.7 that is intermittently loosing power. Will run great for a while then all of a sudden fall on its face. Struggles to reach 30 mph. I have replaced distributer, wires, cap, rotor, plugs, Map, coil, fuel sending unit. I had an aftermarket auto start system in it. Thought it was causing the problem took it out thought it solved the problem but a month later same problem. When the problem doesn't happen the truck runs great then all of a sudden engine flutters and dramaticly looses power. Thought the cats may be plugged took it to the muffler shop and they told me if they were clogged it would do it all the time not intermittently. Any suggestions ? I'm stumped

2 Answers

Your Answer:

Related Questions

Shortcuts

Search GMC Sierra 2500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    180
  • #2
    Gene Arnett
    Reputation
    170
  • #3
    mikeatpriestlake
    Reputation
    70
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
17 Great Deals out of 1,640 listings starting at $9,988
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,285 listings starting at $8,995
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Dodge RAM 2500
23 listings starting at $9,975
Used GMC Yukon
16 Great Deals out of 929 listings starting at $1,225
Used Chevrolet Silverado 2500
2 listings starting at $12,500
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Ford F-250
6 listings
Used Ford F-350 Super Duty
39 Great Deals out of 2,598 listings starting at $8,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.