throttle body dumping lots of fuel.

30

Asked by Apr 02, 2011 at 12:15 AM about the 1989 Chevrolet S-10

Question type: Maintenance & Repair

89 4.3 ltr. model 220 TBI dumping waaayyy to much fuel & flooding engine. Could that be the pressure regulator on top.

7 Answers

115

i have a 91 2.8 tbi that was doing that. I replaced the hall effect switch and pick up coil along with the tps sensor. all parts ran me round 40$ im not sure wich one fixed it but it got fixed!

7 people found this helpful.
115

the distributer has a lead to the ecm to tell the fuel injector when to open and close. the hall effect switch detects a load on the distributer i.e. acceloration. and adust the spark and fuel accordingly, normally if the service engine light doesnt read a code 21 and the spring in the tps is springing back into pos. then the tps is good.

1 people found this helpful.
30

Thanx. Rebuilt presre. reg on throt. bdy & replaced plugs,wrs.cap,rotor,ect. then it started poppin' & pingin'. cometo find out coil was bad too. But I bought the truck for $400.00 & put about $65.00 into it, with oil change,& $25.00 worth of gas.Runs & drives like a champ now. Thanx again for your input.

3 people found this helpful.
350

I'm having the same fuel dumping problem in my 88 s-10 4.3 can't find hall effect location. ..hhelp

35 people found this helpful.
270

I have a 89 gmc with the 2.5l 4 cylinder and its dumping too much fuel after I put a new injector in it, it's like the injector is stuck open. what's causing it?

27 people found this helpful.
30

I got question on 89 s-10 double throttle body and get no fluid to injectors at all what wrong

3 people found this helpful.

I have a 91 s-10 2.8 my fuel pump went out my head lights stop working and my cluch sencer went out at the same time any ideas

Your Answer:

S-10

Looking for a Used S-10 in your area?

CarGurus has 874 nationwide S-10 listings starting at $1,500.

ZIP:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,810
  • #2
    John Saffrahn
    Reputation
    1,110
  • #3
    Trebor66
    Reputation
    1,090
View All

Related Models For Sale

Used Ford Ranger
126 Great Deals out of 4,389 listings starting at $1,500
Used Ford F-150
2,356 Great Deals out of 208,288 listings starting at $998
Used Dodge Dakota
82 Great Deals out of 3,059 listings starting at $1,495
Used Chevrolet Blazer
704 listings starting at $900
Used GMC Sierra 1500
746 Great Deals out of 61,254 listings starting at $1,395
Used Chevrolet Camaro
233 Great Deals out of 27,354 listings starting at $2,077
Used Chevrolet C/K 1500
677 listings starting at $2,200
Used Ford Mustang
260 Great Deals out of 37,872 listings starting at $1,350

Used Cars For Sale

2004 Chevrolet S-10 For Sale
32 listings starting at $3,995
2003 Chevrolet S-10 For Sale
211 listings starting at $2,988
2002 Chevrolet S-10 For Sale
144 listings starting at $3,900
2001 Chevrolet S-10 For Sale
125 listings starting at $2,111

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.