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

49,835

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...

49,835

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 156,238 nationwide Silverado 1500 listings starting at $1,395.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,800
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,510
#3 elvisman4
elvisman4
Reputation 1,450
View All

Related Models For Sale

Used GMC Sierra 1500
928 Great Deals out of 62,271 listings starting at $1,395
Used Ford F-150
2,882 Great Deals out of 212,656 listings starting at $1,000
Used Dodge Ram 1500
537 Great Deals out of 12,998 listings starting at $2,199
Used Chevrolet Silverado 2500HD
359 Great Deals out of 26,069 listings starting at $2,500
Used Toyota Tundra
626 Great Deals out of 30,696 listings starting at $2,637
Used Toyota Tacoma
627 Great Deals out of 35,082 listings starting at $2,155
Used Chevrolet Tahoe
809 Great Deals out of 28,674 listings starting at $1,500
Used Chevrolet Colorado
278 Great Deals out of 19,365 listings starting at $1,995
Used Chevrolet Camaro
310 Great Deals out of 38,867 listings starting at $1,250
Used Ford F-250 Super Duty
426 Great Deals out of 45,049 listings starting at $2,000
Used Chevrolet Silverado 1500HD
22 Great Deals out of 307 listings starting at $3,950
Used Chevrolet Silverado 2500
11 Great Deals out of 327 listings starting at $3,995
Used Ford Mustang
399 Great Deals out of 44,403 listings starting at $1,000

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
13 Great Deals out of 96,244 listings starting at $17,728
2016 Chevrolet Silverado 1500 For Sale
246 Great Deals out of 8,367 listings starting at $15,174
2015 Chevrolet Silverado 1500 For Sale
240 Great Deals out of 7,083 listings starting at $15,800
2014 Chevrolet Silverado 1500 For Sale
404 Great Deals out of 10,894 listings starting at $9,987
2013 Chevrolet Silverado 1500 For Sale
247 Great Deals out of 5,964 listings starting at $7,950