Is it timing or something else

Asked by Joemoller77 Aug 05, 2016 at 12:34 AM about the 2003 GMC Sierra 1500 Work Truck Standard Cab LB

Question type: Maintenance & Repair

Hi i change my oil and filter, my fuel pump and fuel filter, i also change my rotor distributor cab
wires and spark plugs  on a gmc sierra v6 4.3l yr 2003. Now my truck shakes a lil and when i
step on the gas pedal it feels like shocking. Plus when connecting timing gun i dont get flash
from it. Can any body help me out

6 Answers

I did already i even put the old spark plugs and wire to see if that was the problem i double check the gap and they are fine and on the firing order i have the speks of it. I dont know what wlse to do

34,805

If the timing is right, sparkplugs and wiring then chec to see if U might've accidentally disconnected a sensor plug or vacuum hose

I did check all that and i have spark on cilynder 1 i made my timing gun work allready but now everytime i step into gas pedal check engine light flashes but truck doest shake no more. All this is on a park mode i havent switch gear on it

I did check all that and i have spark on cilynder 1 i made my timing gun work allready but now everytime i step into gas pedal check engine light flashes but truck doest shake no more. All this is on a park mode i havent switch gear on it

I think i found the issue my cousing tied the distributor cab to hard and the screw from the inside was loose. Thanx cousin for adding more bills lol

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 66,864 nationwide Sierra 1500 listings starting at $1,100.

ZIP:

Own this car?

Share your experience with others.

2003 GMC Sierra 1500

Review another car

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,360
  • #2
    dragonflyoffshore
    Reputation
    11,530
  • #3
    John Saffrahn
    Reputation
    11,450
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,138 Great Deals out of 130,526 listings starting at $875
Used Ford F-150
6,075 Great Deals out of 133,989 listings starting at $1,050
Used GMC Sierra 2500HD
563 Great Deals out of 21,082 listings starting at $5,995
Used Toyota Tundra
1,095 Great Deals out of 33,761 listings starting at $3,000
Used Chevrolet Silverado 2500HD
1,024 Great Deals out of 30,753 listings starting at $1,350
Used GMC Yukon
657 Great Deals out of 11,550 listings starting at $1,499
Used Toyota Tacoma
1,949 Great Deals out of 33,443 listings starting at $2,200
Used Dodge RAM 1500
79 Great Deals out of 1,621 listings starting at $995
Used Chevrolet Tahoe
1,073 Great Deals out of 21,729 listings starting at $1,000
Used Ford F-250 Super Duty
1,377 Great Deals out of 43,237 listings starting at $2,995
Used GMC Canyon
364 Great Deals out of 10,578 listings starting at $2,995
Used Chevrolet Camaro
583 Great Deals out of 9,031 listings starting at $4,899

Used Cars for Sale

2024 GMC Sierra 1500 For Sale
89 Great Deals out of 44,708 listings starting at $28,505
2023 GMC Sierra 1500 For Sale
263 Great Deals out of 4,498 listings starting at $31,987
2022 GMC Sierra 1500 For Sale
202 Great Deals out of 1,713 listings starting at $28,259
2021 GMC Sierra 1500 For Sale
330 Great Deals out of 4,098 listings starting at $19,000
2020 GMC Sierra 1500 For Sale
196 Great Deals out of 2,383 listings starting at $17,500

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.