89 c1500 305 v8

Asked by Mike197244 Apr 19, 2017 at 08:03 PM about the 1989 GMC Sierra 1500 C1500 Standard Cab LB

Question type: General

89 Gmc c1500 305 v8 Tbi .new fule pump.fule
filter.air controle.map sensor.throtle sensor.Egr.
plugs and wires still rums like crap first start high
rpm then levels off then startscto surge bad then
dies .any one know what is left to change lol

1 Answer
223,905

Rowefast answered 7 years ago

Should check for vacuum leaks. Snug up the intake manifold bolts, and take the TBI off and check the base gasket. There is the fuel regulator in the TBI that I'm sure is getting weak. Just check the fuel pressure, it should be 9 to 13 lbs. You can get a rebuild kit or a new regulator for this yet.

Mark helpful

Your Answer:

Related Questions

  • 89 c1500 305 v8 1 Answer

    89 Gmc c1500 305 v8 Tbi .new fule pump.fule filter.air controle.map sensor.throtle sensor.Egr. plugs and wires still rums like crap first start high rpm then levels off then startscto surge bad the...

    1989 GMC Sierra 1500 C1500 Standard Cab LB

    -

    General

  • 1994 GMC C1500 305 or 350? 3 Answers

    So I just bought a 1994 GMC truck. It's a C/k1500 in great shape with 126,000 miles showing on the speedo. The sticker on the radiator says it's a 5.7l engine. Great. But now that I got it home and ...

    1994 GMC Sierra 1500 C1500 SL Extended Cab SB

    -

    General

  • 305 or 350? 1 Answer

    Hi just purchased a 92 gmc sierra 1500 4x4 and am wondering how you differentiate between the 305 5l and the 350 5.7l. It is a 4 speed od automatic. Also am wondering if 1000 was a good price for ...

    1992 GMC Sierra 1500

    -

    General

  • Can 305 engine replace 350 engine 6 Answers

    Can a 305 replace 350 engine 5.7 liter

    1988 GMC Sierra 1500 C1500 Standard Cab SB

    -

    General

  • What is towing capacity of 2007 GMC Sierra 1500 CC w/5.3L V8 2wd 2 Answers

    I am trying to see what weight capacity for a travel trailer would be safe to tow w/my 2007 Sierra. It was new body style Crew Cab, SLE 5.3L w/V8 2wd.

    2007 GMC Sierra 1500 SLE1 Crew Cab

    -

    General

Own this car?

Share your experience with others.

1989 GMC Sierra 1500

Write a car review

Review another car

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,830
  • #2
    dragonflyoffshore
    Reputation
    11,750
  • #3
    John Saffrahn
    Reputation
    11,690
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-150
6,489 Great Deals out of 168,949 listings starting at $1,871
Used Chevrolet Corvette
802 Great Deals out of 14,500 listings starting at $4,999

Used Cars for Sale

2025 GMC Sierra 1500 For Sale
34,002 listings starting at $32,565
2024 GMC Sierra 1500 For Sale
213 Great Deals out of 17,803 listings starting at $25,310
2023 GMC Sierra 1500 For Sale
259 Great Deals out of 3,029 listings starting at $24,998
2022 GMC Sierra 1500 For Sale
151 Great Deals out of 1,829 listings starting at $24,607
2021 GMC Sierra 1500 For Sale
284 Great Deals out of 3,440 listings starting at $20,597

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.