Question about 1991 Chevrolet S-10 Blazer

1 Answer

1991 chevy s-10 bazer sucks to much gas and into the exhaust

My 1991 chevy s-10 blazer sucks to much gas through the intake and ends up causing carbon buildup in my exhaust system. And, I can really smell the gas. I have one plug that fowls. I just replaced the exhaust system and cadilatic converter. I'm getting about 2 miles per gallon less than I should be with this rig because of the problem. What could it be? Thanks, Shannon

Posted by on

  • Mike Butler
    Mike Butler May 11, 2010

    When were the plug wires & cap last replaced?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 57 Answers

I had a similar problem with gas smell and bad gas mileage. The problem was: a gasket that goes around the carburetor covering the jets had worn out allowing gas to pour out and burn off the hot engine. The gasket cost less than $1 to replace. When properly mounted, the gasket stopped the gas leak, which stopped the gas smell meriting an exponential improvement with my gas mileage.

Posted on Jun 14, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 2002 Chevy blazer 4+4 is useing way more gas then ever why what is the problem injeters fuel filter


Check, replcae air filter, fuel filter. Any restrictions on intake would cause poor consumption. Also exhaust restrictions, and or leaks. Once all that been taken care of, can move onto more complicated items.

Aug 12, 2014 | 2002 Chevrolet Blazer

1 Answer

Air and gas blowing out the intake


sounds like timing chain/belt jumped time.

Dec 16, 2013 | 1991 Toyota Camry

1 Answer

2000 chevy blazer viberates bad


check hub bearings,tie rods,rotors,CV joints.

Mar 10, 2013 | Cars & Trucks

1 Answer

My Blazer won't accelearte past 25-30 mph......it builds up speed SLOWLY until the speed of 25 mph.....is it possible my air intake valve or exhaust system could be clogged? It is a 1991 S-10 4-door...


it is possible the converter is plugged, you might need to just take it in and have a backpressure test run, possibly a fuel pressure test as well

Aug 25, 2011 | 1991 Chevrolet S-10 Blazer

2 Answers

95 check s-10 blazer idle is not consistent: almost stalls then idle surges. When gas is applied the engine bucks & misses severely. A friend has suggested it may be the egr valve. What are the...


An EGR that is stuck opencan very well cause the symptom you are decribing, including surging at idle and poor acceleration.

Failure of GM EGR Valves is quite rare.
A common problem on the 4.3L Vortec engines is failure of the Central Multiport Injection Assembly located between the plastic upper intake plenum and the lower intake manifold.

Sometimes failure of injector lines and/or the fuel pressure regulator (Part of the MFI Assembly) will cause fuel to spill into the upper plenum area. This can dislodge carbon deposits in the upper plenum which then get stuck in the EGR Valve and cause the symptoms that you are describing. The EGR Valve can be removed and cleaned. Replacement is not usually necessary.
Ido recommend replacement of the injector assembly however.

check out this solution page for more info regarding this.

http://www.fixya.com/cars/t3218505-misfire_code_rough_idle_full_tune_up

Dec 04, 2010 | 1995 Chevrolet Blazer

1 Answer

High beam switch on 1991 chevy blazer


there is a spring loaded rod in the steering column and that has broke most likely.

Jun 20, 2010 | 1991 Chevrolet S-10 Blazer

1 Answer

I have never instaled a distributer before and i would like advice. i have a 1990 chevy s-10 blazer 4.3 liter auto trans


first set motor to top dead center cyl 1 thei insert distrib to first plug point remember it is rare you wont need to ajust distrib just make sure you are tdc and not on an intake or exhaust stroke as every cylinder has 3 strokes
1 intake
2 compression and fire
3 exhause

so make sure you are on compression stroke cyl 1
insert distrib to first cyl point and snug it down just remember you will likely have to ajust it

Jan 17, 2010 | 1991 Chevrolet S-10 Blazer

1 Answer

Gas in the oil and in the exhaust


spider type fuel delivery inside upper intake known to leak , and with repeated attempts to start , fuel gets into wherever gravity will allow , be sure to drain fuel soaked oil before attempt to start after repair and because fuel is in the exhaust , it might blow the muffler and melt the catalytic converter

Feb 19, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

My 1991 chevy s-10


when i start my 91 s10 blazer it try to stall so i have to give it gas to keep it running then when i leave out of the drive way and go down the road it has problem get the right amountof gas to go but once it hit 60 -70 mile an hour its fine

Dec 31, 2008 | 1991 Chevrolet S-10 Blazer

1 Answer

Poor to no acceleration


Hi, you may have a plugged up converter. When a converter plugs up, the exhaust has no where to go but stay in the engine. This will cause the engine to get hot in a short period of time. Do a pressure test on your cooling system. If it holds pressure, this would be a good thing, if not, this means the water is going somewhere. It still could be a sign of a leaking head or intake gasket. I'm willing to bet you may have a leaking intake gasket and your water is entering the head and going out the exhaust causing your tailpipe issue and the water has loosened the carbon in the exhaust system plugging the converter. The engine will loose all kinds of power with a plugged exhaust. If that checks out, check out you MAF (Mass Air Flow) sensor. This tells the computer how much air is entering the engine in which the computer tells the injectors how much fuel to give the engine.

Jul 04, 2008 | 2001 Chevrolet Blazer

Not finding what you are looking for?
1991 Chevrolet S-10 Blazer Logo

284 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7768 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...