Question about 2005 GMC Sierra

2 Answers

2005 GMC Seirra 4.8l excessive oil consumption.

My seirra using a quart every month. I have seen smoke at start up once or twice, but not all the time. I don't see any leaks.

Posted by on

  • 1 more comment 
  • outcold52 Feb 26, 2009

    It is about 1500 to 2500 miles a month. It doesnt make it to required oil change.
    I also have an evap code 448 small leak. I had the tighten gas cap light come on. i replaced the gas cap when tightening did nothing. I crawled under the truck and check all the hoses with my hands and notice no breaks. Any pointers on that?
    I have a small noise in the truck that baffles me.... it sounds like a horn sometimes when i take off or accelerate from slow speeds.



  • yadayada
    yadayada May 11, 2010

    1500-2000 miles per quart is not excessive oil useage, all engines burn some oil, 1 quart in less than 500 miles is an issue.

  • yadayada
    yadayada May 11, 2010

    how many miles to a quart?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 32 Answers

U might have recall its only 05 .that sucks .sounds like someone drove it with low oil.u need overhaul.hate to hear this.

Posted on Jan 25, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 162 Answers

This is not a very good sign really. if you rev up to about 4-5 thusand rpm (more than usual) while driving in a safe mannor of course and see smoke then you will find the piston rings are probably going. you might al;so want to take into consideration that your valve stem oil seals are all internal as well so no real sign of leakage.so could also be the culprit.

Posted on Feb 25, 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

Toyota corolla oil leak


The fact that you are adding a quart of oil to your car doesn't mean that car have a leak, most of the time engines are leaking oil is noticeable, on the side of the engine block or black spot on parking lot. Engines also consume oil after certain amount of miles depending on models. I don't think your car acting up have anything to do with the quart of oil you are adding to your car once a month. Please specify what exactly is your car doing when you say; is acting up, so we can help you out to solve that issue.

Apr 02, 2014 | 1996 Toyota Corolla

1 Answer

Small puff of smoke on startup - intermittent


I have seen this on old cars, my suspicion is that the seals on the valves are a bit worn. This allows some oil to get through during start up. Since it quits smoking, I would not be overly concerned. However, since it burns a quart every 1-2K miles, I am curious what the compression is. My Fiero does the same thing (occasional puff of smoke on start up) but does not need oil between 3,000 mile chages. It is a 2.5 liter. Here is nice tip: check compression on all cylinders, then recheck it adding a teaspoon of 2 cycle oil to the cylinders (one cylinder at a time). Some have said to use conventional oil for this, due to higher viscosity, but I always thought it might foul the spark plugs. If the compression goes up, it is ring wear, if not it is leaking through the valves.

Oct 01, 2013 | 1988 Pontiac Fiero

1 Answer

Uses oil ,no leaks


check for a stuck or gummed up PVC valve,it should rattle when you shake it. check for worn piston rings; with someone observing from behind start at bottom of steep hill accelerate quickly from a stop, if worn rings, blue smoke will be seen from the exhaust.

Aug 02, 2012 | 2002 Cadillac Deville

1 Answer

Excessive exhaust smoke on the first start of the day


Sounds like the valve guides are leaking oil into the cylinders, or there is a coolant leak somewhere. Usually white smoke is coolant but could be oil.
Are you adding either fluid often ?

Aug 01, 2012 | 2004 Hyundai Santa Fe

1 Answer

White smoke coming out of tail pipe.


WHITE smoke? Or BLUE smoke? White smoke is usually caused by burning antifreeze (possible blown head gasket). Engine oil burning causes a bluish colored smoke.

Changing the oil two months ago means absolutely nothing to me. I have customers that travel 6000 miles or more in a month. Oil consumption is measured in volume over miles, not volume over months. It is normal for most 4 cylinder engines to use a little less than 1/2 quart in 1000 miles (even more than that for 6 cylinder and 8 cylinder engines).

Apr 12, 2012 | Cars & Trucks

2 Answers

Hello I have a 2001 ponitac aztec and I am being to have trouble with it. When I start it up it has white smoke and shakes really bad but once I get to driving it it drive perfect. I took it to a mechanic...


SOUND LIKE LEAKING HEAD GASKET.ANTIFREEZE IS BURNING WITH FUEL CAUSE SEVERE ENGINE MISFIRE THATS WHY ENGINE SHAKING BAD ITS MISFIRING.TIME YOU NEED A NEW ENGINE WHEN ITS SMOKES HEAVY BLUE SMOKE USE A QUART OF OIL ONCE OR TWICE A WEEK.

Aug 05, 2010 | Pontiac Aztek Cars & Trucks

2 Answers

If I'm loosing coolent at a slow rate of time . It's a good sign that my water pump is going out?


The man made coolant referred as Orange Juice by mechcanics does evaporate about one quart every three months. The old yellow colored Anti Freeze does not evaporate unless it leaks out hot

Jan 14, 2010 | 2006 Pontiac Grand Prix

1 Answer

My 2004 audi A4 consumes oil at a rate of 1 1/2 quarts every 3 months. There are no apparent leaks and it is not burning it. It idles and runs smooth. Any suggestions?


How many miles/km's you drive in those 3 month's ? oil consumption is normal ! Check when you first start the engine in the morning wetter or not you see a puff of blue smoke, if you see smoke , your valve seals are leaking.
1 liter oil each 2000km is normal.

Aug 08, 2009 | 2004 Audi A4

Not finding what you are looking for?
2005 GMC Sierra Logo

Related Topics:

307 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

71288 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers

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

Answer questions

Manuals & User Guides

Loading...