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

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.

Your Answer:

CarGurus Experts

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

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871

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.