Question about GMC Cars & Trucks

1 Answer

2005 gmc w4500 5.2 diesel turbo went bad replace old turbo with new it starts clean air cooler but smoke and small amounts of oil goes through the exhaust

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • GMC Master
  • 2,909 Answers

Describing a turbo as gone bad doesn't adequately describe what happened to it and why. A turbo is a very strong and reliable bit of equipment that will give long service as long as it isn't abused. Assuming you didn't abuse it there will be a reason why it failed and it is important to discover the reason and if possible rectify the fault before or during the turbo replacement.

When replacing a turbo it is best practice to change the engine oil and filter and verify there is a good supply to the turbo and the drain back into the oil pan is clear. The intake must be checked and thoroughly cleaned of any and all foreign objects along with all the high and low pressure trunking and the intercooler. If the old turbo broke up it is important all the bits are found - because if part of the compressor is missing it could have been ingested by the engine or is perhaps lodged in the manifold or a port waiting to cause further expensive damage and inconvenience...

If the turbo went bad because of bearing and seal failure there could be quite a lot of oil in the exhaust system. If there is, it can take quite a long time for it to disappear. If you analysed the reason for the turbo failure correctly and fitted the replacement using best practice and the engine is running ok, you can be confident the smoke and oil drops will eventually clear. You should of course confine your driving to quiet country roads until it does.

Posted on May 17, 2017

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:

3 Answers

I got a tata 407 turbo but the performance is poor it also smokes black and the fuel is black can some please help


Best I can tell this is a diesel truck? I know diesel, but
depending on age could be injectors, possibly Diesel injection pump hopefully not. The fuel is black? Someone is putting old engine lubricating oil in the fuel tank. It will increase the problem of black smoke. It may also have a bad smell because of the engine oil. If the turbo is not spinning properly (high pitched whine) the bearings may be bad and it's not getting enough air into the engine. This would also explain the smoke problem. Take it to a Diesel specialist!

Mar 05, 2015 | Tata Cars & Trucks

1 Answer

Ssangyong musso. 2005 2.9 diesel. turbo. hard to


turbo seal is blown allowing oil into air intake charge-white/blue smoke=oil- black smoke=rich fuel mix-replace turbo-cheers Denny

Nov 01, 2013 | Cars & Trucks

1 Answer

Black smoke under acceleration that comes and goes. Have changed mass air flow sensor and did not help. Model is 2005 six speed turbo diesel


Black smoke indicates you are running rich. You may have to address the fuel injectors to make sure one is not stuck open. After replacing the MAF censor this would be my next step. Also your turbo seal might be leaking causing your truck to run rich throwing off the o2 censor. Also you can get black smoke from turbo blowby. Not burning oil but actual oil passing the rear turbine seal and getting into the exhaust. This should give you a few good places to check out. Good luck to you.

Mar 05, 2011 | Ford Transit Connect Cars & Trucks

5 Answers

2005 Ford F350 SuperDuty 6.0 litre Diesel. Truck was very sluggish to accelerate and little or no boost showing on turbo pressure gauge. Next morning, it started fine, but when put in gear would quit and...


well the question is where did the coolant go. if it didnt leak out it must have went out the pipe. As you stated, white smoke, white smoke is coolant. You definately need to get this to the shop. You cannot drive it this way or further damage will occur.

Nov 21, 2009 | 2005 Ford F 350 Super Duty

2 Answers

Diesel 6.0 running very bad and getting too hot


What you have described is a classic turbo air leak. Check the clamps & air lines from the turbo to the intake. If you do not find an air leak (you should be able to hear the air escaping) it will be a turbo problem. Unlike gasoline engines too much fuel in proportion to the air will cause the vehicle to run hot and also to smoke.

Jul 06, 2009 | 2005 Ford F 350 Super Duty

2 Answers

Engine smoke and doesnt start easy when it is cold


Ones the diesel engine gets weak its thn a hard start!, becausea diesel engine mainly fires up on good compression, i guess its time for an engine overhaul .

May 06, 2009 | 2005 Hyundai Santa Fe

1 Answer

1992 gmc sierra turbo diesel starts and idles fine until warm up


It's time for a Italian tune up!

The blue smoke can be one of two thing.

oil drop from the valve stem (from engine head to cyclinders)
or
diesel soot collect inside the exhaust system.

===
I will take a 5-10 minutes high rpm (not redline) ran on the highway.
Pay close attention to the rear view mirror and look for black diesel soot.
=== I will use Diesel Cleen or similar product to condition the fuel. (keep moisture down)
Use the recommended amount of SEAFOAM oil additive to condition the valve stem seal/rubber parts.

I can not rule out excessive blown by.
Can you get a diesel compression tester?
When was the last valve adjustment?

Please post the actual odometer on the engine and I will follow up on it.

Apr 21, 2009 | 1992 GMC Sierra K1500

3 Answers

Oil coming out of exhaust and whistling turbo


it sounds like your turbo has packed in firstly the oil seal in your turbo has failed thats why ur seeing oil from exhaust & the whistling from turbo is the vanes in turbo breaking up so i would advise not to use car until new turbo is fitted & inter cooler pipes and inter cooler itself are checked & cleaned for swarf from turbo you can check turbo by disconnecting turbo pipe &inspecting turbo vanes (fins) to see if broken up or any damage to chamber.

Feb 14, 2009 | 1991 Peugeot 405

3 Answers

2005 f350 blows white smoke when on the throttle hard.


Could possibley be a coolant leak, but no guranteed, if too much fuel is being injected for the amount of air entering, diesel fuel can cause a white smoke. I would check the air filter first. Is the boost gauge working, and if so how many PSI of boost are entering the engine?

Oct 20, 2008 | 2005 Ford F 350 Super Duty

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

20 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...