Tbi injector overflowing with fuel

40

Asked by Feb 12, 2015 at 09:39 PM about the 1990 Chevrolet C/K 1500

Question type: Maintenance & Repair

Injector overflowing with fuel,
recently cleaned tbi system and
partially rebuilt with new o-rings and
gaskets. What could be the problem?

7 Answers

20,105

How is it overflowing? Is it spraying to much or is the fuel leaking out sonewhere?

1 of 1 people found this helpful.
40

Leaking over the top and partially spraying underneath along with quick dripping

1 of 1 people found this helpful.
20,105

Is it coming from the injector nozzle or somewhere else on the throttle body? It shouldn't come from anywhere no matter the fuel pressure. If it' spraying from the nozzle without the engine turning over then you need a new injector. If it's coming from somewhere on the throttle body then a gasket has failed or somehow the housing cracked.

1 of 1 people found this helpful.
40

Hmm- I think I have a bad injector I noticed this when I moved them to their opposite housings. Right bad injector to left housing and left good injector to right housing. This time right housing stayed dry but left leaked. I also noticed that I forgot to lubricate my larger o-rings.

20,105

The o rings cause leaks but it sounds like a leaky injector

40

Yeah I will replace and let you know.

40

Replaced the leaky injector and my truck is running better, although I did notice the engine tremble a little at idle. I also noticed rpm would slightly go down then pick back up to a good idle.

3 of 3 people found this helpful.

Your Answer

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 821 nationwide C/K 1500 listings starting at $1,995.

ZIP:

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    3,880
  • #2
    John Saffrahn
    Reputation
    2,650
  • #3
    Rowefast
    Reputation
    2,210
View All

Related Models For Sale

Used GMC Sierra 1500
1,182 Great Deals out of 64,431 listings starting at $999
Used Ford F-150
3,192 Great Deals out of 223,412 listings starting at $1,200
Used Chevrolet C/K 2500
210 listings starting at $2,995
Used Chevrolet Camaro
440 Great Deals out of 31,638 listings starting at $1,450
Used Chevrolet C/K 3500
214 listings starting at $3,199
Used Chevrolet S-10
13 Great Deals out of 1,209 listings starting at $1,600

Used Cars For Sale

1998 Chevrolet C/K 1500 For Sale
154 listings starting at $1,995
1997 Chevrolet C/K 1500 For Sale
137 listings starting at $4,500

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.