truck not breathing right & lags

Asked by Oct 21, 2015 at 08:50 PM about the 2003 Chevrolet Silverado 1500

Question type: Maintenance & Repair

my 2003 Chevy silverado v6 4.3 has been driving poor lately it basically struggles to go past first gear and doesn't seem like enough air is being used because it chokes bad it sort of hick ups. Ive recently changed the fuel filler, oil filter and air filter  and changed the oil with royal purple 5w-30 and replaced all of my spark plugs and add fuel injector cleaner. the peroblem has gone from worst to bad

3 Answers

71,215

Need to check the fuel pressure, at the Schrader Valve, it should be 56 to 62 lbs. This is just a start.

35

Since you didn't give mileage I am assuming it is considerable... If you still have the stock exhaust, remove the caylitic converter temporarily and see if the solves your issue...

71,215

Good answer Restorations, another way to tell if the cat is plugged is to drive the vehicle at night and get it warmed up good, stop somewhere dark with the engine running and look at the cat. If it is plugged, it will be from slightly glowing orange to brightly glowing orange. You can't miss it.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • truck not breathing right & lags 3 answers

    my 2003 Chevy silverado v6 4.3 has been driving poor lately it basically struggles to go past first gear and doesn't seem like enough air is being used because it chokes bad it sort of hick ups. Ive r...

    2003 Chevrolet Silverado 1500

    -

    Maintenance & Repair

  • My truck will start and run but not right sounds like missing and not keeping a charge 1 answer

    My truck will start and run but not right sounds like missing and not keeping a charge can any one help

    2000 Chevrolet Silverado 1500 LT Ext Cab 4WD

    -

    Maintenance & Repair

  • What should I do if I added fuel from a gas jug and right afterwards my truck would barely go and then it died and will not start? 3 answers

    I own a 1999 Chevrolet c1500 z-71 v-8 5.3 liter. For a while its been stalling a little bit right after starting and continues until it gets moving down the road. Well, yesterday I added some from a...

    1999 Chevrolet Silverado 1500 LS 4WD Standard Cab LB

    -

    Maintenance & Repair

  • Truck Not turning over 4 answers

    My truck won't turn over. Or it has a hard time. It's a 98chevy Silverado 1500 extended cab automatic trans. Replaced spark plugs and wires but problem still persists. Checked under the hood and a ...

    1999 Chevrolet Silverado 1500 3 Dr LS 4WD Extended Cab LB

    -

    Maintenance & Repair

  • 2000 chevy silverado is not shifting right 1 answer

    I have a 2000 chevy silverado 1500 when im going down the road and i start to hit a hill the truck will rev up like its going to shift down to keep up speed for the hill but the RPMS shoot up not the ...

    2000 Chevrolet Silverado 1500 LS Stepside Short Bed 4WD

    -

    Maintenance & Repair

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 181,195 nationwide Silverado 1500 listings starting at $250.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,330
#2 Rowefast
Rowefast
Reputation 1,910
#3 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,640
View All

Related Models For Sale

Used GMC Sierra 1500
762 Great Deals out of 69,121 listings starting at $1,850
Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used Dodge Ram 1500
413 Great Deals out of 10,833 listings starting at $1,400
Used Chevrolet Silverado 2500HD
301 Great Deals out of 28,182 listings starting at $2,495
Used Toyota Tundra
437 Great Deals out of 34,674 listings starting at $2,990
Used Toyota Tacoma
473 Great Deals out of 41,586 listings starting at $1,995
Used Chevrolet Tahoe
558 Great Deals out of 31,371 listings starting at $1,500
Used Chevrolet Colorado
243 Great Deals out of 24,815 listings starting at $2,499
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Ford F-250 Super Duty
330 Great Deals out of 46,260 listings starting at $1,450
Used Chevrolet Silverado 2500
5 Great Deals out of 245 listings starting at $4,900
Used Chevrolet Silverado 1500HD
16 Great Deals out of 259 listings starting at $3,995
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used GMC Sierra 2500HD
99 Great Deals out of 13,462 listings starting at $2,650

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
195 Great Deals out of 128,715 listings starting at $21,284
2016 Chevrolet Silverado 1500 For Sale
129 Great Deals out of 5,587 listings starting at $18,895
2015 Chevrolet Silverado 1500 For Sale
178 Great Deals out of 7,963 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
265 Great Deals out of 10,585 listings starting at $11,300
2013 Chevrolet Silverado 1500 For Sale
142 Great Deals out of 4,948 listings starting at $7,650

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.