No power on low end

Asked by Jul 08, 2017 at 04:15 AM about the 2004 Chevrolet Silverado 1500 Ext Cab Short Bed 2WD

Question type: Maintenance & Repair

Any help would be appreciated. I have a04
silverado v6 4.3. I recently changed out  cats do to
codes and the extreme loss of power on low end
and high end. Completely clogged. Recently
changed out plugs and wires as well as distributor
rotor and cap. I did regain some power and better
mpg. However I use my rig to tow a 5x8 trailer every
day do to my employment (contractor) I'm
constantly carrying my power tools and some heavy
equipment (power washers gang box paint sprayer
and more) when not towing trailer at a dead stop I
can floor it and will start to see power at 35 maybe
45 and you could imagine while I'm towing trailer.
I'm completely stuck someone help.

2 Answers

1,915

starts and idles O.K. ? I don't know check the EGR function and fuel pressure , check the injectors one might be stuck open , ,those cats clogged up for a reason ,what does the exhaust look like ? , does it act like that without the trailers ? Honestly I think you need a V-8 for hauling .

Yes sir it starts and idles it's great on gas no miss fire runs like a champ.... after I reach 30-40 mph. My busddy has the same truck (single cab) short bed same size motor but there is a big difference in power between the 2. I don't lose to much power when towing the trailer but it is noticeable and when commuting without the trailer It is a lil better but no much of a difference.

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,460
  • #2
    Rowefast
    Reputation
    1,960
  • #3
    Andrew Olsen
    Reputation
    1,670
View All

Related Models For Sale

Used GMC Sierra 1500
237 Great Deals out of 10,484 listings starting at $2,995
Used Ford F-150
449 Great Deals out of 9,123 listings starting at $3,000
Used Dodge Ram 1500
52 Great Deals out of 527 listings starting at $2,995
Used Chevrolet Silverado 2500HD
11 Great Deals out of 810 listings starting at $5,995
Used Toyota Tundra
24 Great Deals out of 779 listings starting at $3,999
Used Toyota Tacoma
34 Great Deals out of 790 listings starting at $5,995
Used Chevrolet Tahoe
5 Great Deals out of 642 listings starting at $6,871
Used Chevrolet Colorado
16 Great Deals out of 1,313 listings starting at $1,999
Used Ford F-250 Super Duty
19 Great Deals out of 780 listings starting at $3,000
Used Chevrolet Silverado 2500
4 listings starting at $10,000
Used Chevrolet Silverado 1500HD
4 listings starting at $9,995
Used Ford Mustang
6 Great Deals out of 1,187 listings starting at $3,500

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
12 Great Deals out of 7,381 listings starting at $24,830
2016 Chevrolet Silverado 1500 For Sale
22 Great Deals out of 185 listings starting at $22,980
2015 Chevrolet Silverado 1500 For Sale
44 Great Deals out of 435 listings starting at $22,470
2014 Chevrolet Silverado 1500 For Sale
33 Great Deals out of 400 listings starting at $18,204
2013 Chevrolet Silverado 1500 For Sale
28 Great Deals out of 199 listings starting at $12,980

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.