90 gmc k1500 350 standard. Starts from stop fine shift to third from second and give it gas it dies almost puts me into the seat belt. Wrong way . Let off gas its ok. Clutch in rev its fine back in ge

30

Asked by Eben Jan 29, 2015 at 04:13 AM about the 1990 GMC Sierra 1500 K1500 4WD Standard Cab SB

Question type: General

Gear and loss of power with low poping sound. It cleared up for about three weeks
now its back and not going away. ? Throtle body injectors? O2 sensor? I checked
vac leak nothing. This is a new to me truck. Im toyota.now gmc. I dont no gmc.
Please help.

3 Answers

24,895

Is the check engine light on indicating there are any codes?

30

The answer is I changed the air intake. Plastic tube running to pass side to air box. Back up- top of tbi air line from air injector goes into plastic at back of tube above tbi. The rubber tube was shorting out the spark plug wires it was across 4or5 wires lift it off and no problem put back problem sparks jumping everywhere. Rubber non-conductive RIGHT yes unless impregnated with metal wires. Who knew new to me anyways. Bad plug wires? Recommended they are new from kragen or oooreillys

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 9,044 nationwide Sierra 1500 listings starting at $1,000.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,280
  • #2
    dragonflyoffshore
    Reputation
    11,440
  • #3
    John Saffrahn
    Reputation
    11,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
363 Great Deals out of 12,802 listings starting at $599

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.