My1986 S-10 2.8 barely idols and smells bad, runs ruff until at highway speeds, gets bad milage, some symptoms started after replacing orings on injectors, but they aren't leaking?

Asked by Mark Aug 30, 2015 at 02:30 AM about the 1986 Chevrolet S-10 4WD

Question type: Maintenance & Repair

I sprayed off the main body around
injectors with carb spray after
working on it

7,895

Sterling answered 9 years ago

no the injectors are not leaking but the top plate where the fuel pressure regulator might be causing it not to work or you have a fuel pressure regulator out causing excess fuell pressure to go through the injectors. this would cause bad mileage and unburned fuel smell and bad idle. going down the free way and or driving it might be better because you are using up a lot of that excess fuel that the regulator is not mettering. they are cheap you should just replace it with new and see if that help. the bad running is the engine is flooding out like it has a choke fully closed

1 people found this helpful.

Mark helpful

Your Answer:

My1986 S-10 2.8 barely idols and smells bad, runs ruff until at highway speeds, gets bad milage, some symptoms started after replacing orings on injectors, but they aren't leaking? 1 Answer

I sprayed off the main body around injectors with carb spray after working on it

1986 Chevrolet S-10 4WD

-

Maintenance & Repair
my 1992 chevy S-10 runs bad after I changed the spark plugs 2 Answers

I changed the spark plugs and wires on my 1992 Chevy S-10 and now it runs really bad. Any ideas what could be causing this?

1992 Chevrolet S-10 RWD

-

Maintenance & Repair
After getting some "bad cheap fuel" a few weeks back in my 2001 chev s10, with a 4.3 v6, now I have a long cranking before it starts. The crank sensor was replaced and the crank sensor relearn was done. It still throws a code of a misfire, sometimes a code of multiple misfires. it runs fine one it starts, but at highway speeds it will throw the code on the dash, yet still run fine. I dont know if the spider is clogged or the fuel pump strainers,[2] are clogged. I have fuel pressure and it maintains it, on the guage. It almost sounds like the timing is off a bit. 4 Answers

long cranking before starting, poor fuel mileage, 160k miles. tuned up at 146k. The engine always started on the first crank. No it cranks for 5-10 seconds before it slowly starts.

2001 Chevrolet S-10 LS Crew Cab 4WD

-

Maintenance & Repair
why is my 1998 S-10 2.2 auto bog down very bad when I try to punch the gas. I just install a very good battery and have one on those innova 3100 abs models and it read that ther are no stored data or 3 Answers

my S-10 will bog down when I try and punch the gas. My inniva scanner says no stored data or freeze frame data either. It was running fine and then when my wife was coming home from work it started up...

1998 Chevrolet S-10 LS RWD

-

Maintenance & Repair
runs ruff 1 Answer

what makes my s 10 run ruff new plugs wires dis. cap rotter

1995 Chevrolet S-10

-

Maintenance & Repair

Used Ford Ranger

24 Great Deals out of 1,577 listings starting at $2,888

Used Ford F-150

338 Great Deals out of 15,311 listings starting at $1,712

Used Dodge Dakota

21 listings starting at $3,999

Used Chevrolet Blazer

20 Great Deals out of 869 listings starting at $19,499

Used Chevrolet Corvette

29 Great Deals out of 1,066 listings starting at $15,871

Used Chevrolet C/K 1500

6 listings

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.

My1986 S-10 2.8 barely idols and smells bad, runs ruff until at highway speeds, gets bad milage, some symptoms started after replacing orings on injectors, but they aren't leaking?

1 Answer

Your Answer:

Shortcuts

Search Chevrolet S-10 Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

My1986 S-10 2.8 barely idols and smells bad, runs ruff until at highway speeds, gets bad milage, some symptoms started after replacing orings on injectors, but they aren't leaking?

1 Answer

Your Answer:

Related Questions