Question about 2009 GMC Acadia

1 Answer

Fuel pressure regulator

Fuel in exhaust smokes out entire garage big time

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • GMC Master
  • 47,586 Answers

Have a fuel system pressure test done to determine if the regulator is at fault. have the fault codes read to see it the is a problem with the injectors or sensors.

Posted on Jul 29, 2013

Ad

2 Suggested Answers

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 Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 86 Answers

SOURCE: black smoke runs badly, fuel pressure regulator or temp sensor?

look for a vacuum leak. A large vacuum leak will do just what you described. I would listen for a leak first if you cant hear it and locate it then i would spray carb cleaner around the vacuum lines. If you have a leak it will pull the carb cleaner in and you will hear the engine rpm change.

Posted on Mar 29, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My 2010 navara has broken down and come up with the faults PO403 EGR system and P0089 fuel pump, what's the most likely problem? It's lost all power and blowing smoke out.


code p 0403 refers to exhaust system gas recirculation (EGR)---circuit malfunction====causes wiring---EGR solenoid ---ECM
code p 0089 refers to fuel pressure regulator---performance problem===causes fuel pressure regulator---mechanical fault
as you indicate smoke , that would be black smoke , so that indicates a problem in the pressure regulation making the injectors pass more fuel ( flooding) than the ECM cam control
The end result can be blown seals at the injectors or injector problems
at this point replace the pressure regulator, then consider the EGR solenoid

Nov 11, 2017 | Cars & Trucks

1 Answer

I have a 1995 GMC sierra truck smoke when it stop at red light.


It probably smokes all the time , when moving you don't notice it > What color smoke ? White - coolant is getting in to the combustion camber , head gasket , intake manifold . Blue - oil is being burnt - rings , valve seals , Black - running rich , leaking fuel injectors . leaking fuel pressure regulator . Smokes from were , exhaust ? Engine bay etc....

May 01, 2016 | 1995 GMC Sierra C1500

1 Answer

What is responsible for black smoke on plugs in sienna?and why does my car shoot?


Black smoke could be oil burning or unburned gas going out the exhaust. Blackened plugs and running very rough could be too much gas in the cylinders. Check fuel pressure, check fuel pressure regulator-look for evidence of gas in the vacuum line to the regulator- a sign the regulator is bad allowing excess gas into the engine. If fuel pressure is correct, check for leaking injectors, also check ignition system. Do you have a strong blue spark?

Mar 17, 2015 | Cars & Trucks

1 Answer

I'm looking to purchase a used car. I've been doing online research and saw this webpage http://www.usedcarsmells.com . They talk about exhaust color and smells. Is it true that you could tell a lot about...


Yes this is correct, you can get important information from the colour of smoke from the exhaust:

Blue/Gray Smoke: Blue/gray exhaust smoke is an indication of oil burning in the combustion chamber. These are possible symptoms and causes:
Valve Seals: Leaking valve seals will cause blue/gray smoke at startup because oil leaks past the seals into the cylinder after the engine shuts down.
Valve Guides: Excessive clearance between the valve stem and the valve guide allows oil to leak past the gap into the cylinder.
Piston Rings: Worn or damaged piston rings will cause blow-by resulting in blue/gray smoke.
Worn Cylinder Walls: Worn cylinder walls cause blow-by resulting in blue/gray smoke.
PCV System: A stuck closed PCV valve will cause excessive crankcase pressure resulting in blue/gray smoke.
Black Smoke: Black exhaust smoke is an indication of a rich fuel condition. These are possible causes:
Fuel Injectors: A leaking or dripping fuel injector will cause a rich fuel condition.
Fuel Pressure Regulator: A stuck closed fuel pressure regulator will cause a rich fuel condition.
Fuel Return: A restricted fuel return line will cause a rich fuel condition.
White/Gray Smoke: White exhaust smoke is an indication that coolant is burning in the combustion chamber. These are possible causes:
Cylinder Head: A crack in the cylinder head (around the coolant jacket) will cause coolant to enter the combustion chamber.
Engine Block: A crack in the deck of an engine block near the coolant jacket will cause coolant to enter the combustion chamber.
Head Gasket: A damaged or blown head gasket will cause coolant to enter the combustion chamber resulting in white/gray smoke coming from the tailpipe.

Jan 17, 2015 | Cars & Trucks

1 Answer

Black smoke from exhaust


Black smoke is an indication of too much fuel-running rich-in the cylinders. The air/fuel mixture is way off-too much fuel. Possible causes are cylinder misfires (runs and idles rough, a noticeable miss), leaking fuel injectors, or a failed fuel pressure regulator.
Take off the vacuum line to the regulator (on the fuel rail?)-if there is evidence of gas in the vacuum line, the regulator has failed and excess gas is being sucked into the engine through the vacuum line.

You should take a fuel pressure reading to check pressure against the specification for your car.
Also possible that the fuel metering is correct, but the air being supplied to the cylinders is lacking. A clogged air filter could cause that, but you would also experience a rough running condition. Since you didn't mention that, I would think the fuel metering is wrong-too much gas.

Apr 10, 2014 | 2006 Peugeot 604

1 Answer

Trying to locate fuel rail sensor ?


Does your car emit a thick, dark smoke, or some oil, from the tailpipe? Has its mileage dropped? A bad fuel pressure regulator can be the reason of these problems. The fuel injection system in the car must supply fuel to the car engine with a constant optimal pressure. A spring inside the pressure regulator pushes against the diaphragm and helps regulate the pressure inside it. I do not know the size of the engine. but call any auto parts store to locate it.

Apr 05, 2014 | 2005 Ford Freestar

1 Answer

Constant black smoke whenever accelerator is used?


Too much gas going through the engine-that's why black smoke. That's all your unburned gas going out the exhaust. Have the fuel pressure tested. A failed pressure regulator will pull extra gas into the engine. Pull off the vacuum hose to the regulator. If any evidence of gas in the hose, the regulator's diaphragm has broken and sucking gas through the hose into intake.
If fuel pressure is correct, have a scan done for trouble codes.

May 08, 2013 | 2004 Chrysler Voyager

1 Answer

Exhaust pipe is blowing out a mist of black smoke


BLACK EXHAUST SMOKE IS A RICH FUEL MIXTURE.CAUSE BY WEAK SPARK IGNITION, FAULTY MAP SENSOR CHECK MAP SENSOR VACUUM HOSE AND ELECTRICAL CONNECTOR BECAUSE BAD MAP SENSOR WILL CAUSE RICH FUEL MIXTURE CHECK THE VACUUM LINE GOING TO FUEL PRESSURE REGULATOR, MAKE SURE FUEL PRESSURE REGULATOR GETTING VACUUM AT VACUUM LINE IF NOT LOOK FOR BROKEN OR DISCONNECTED VACUUM LINE TO FUEL PRESSURE REGULATOR, CHECK FUEL PRESSURE REGULATOR VACUUM LINE IF YOU SEE GASOLINE IN VACUUM DIAPHRAM TO FUEL PRESSURE REGULATOR REPLACE FUEL PRESSURE REGULATOR,CHECK THE EVAP CANISTER IF GAS SOAK IT WILL CAUSE RICH FUEL MIXTURE.

Aug 05, 2011 | 1995 Chevrolet Blazer

3 Answers

LIGHT BLACK SMOKE


I was always taught that black smoke is unburnt fuel exiting the exhaust and white or bluish smoke is oil blow by engine wear or damage.

May 12, 2010 | 1995 Isuzu Trooper

Not finding what you are looking for?
2009 GMC Acadia Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...