Question about 1999 GMC Suburban

1 Answer

99 GMC K 1500 Transmission burning fluid and comeing out blow-by

I have a 99 GMC K1500 with 200k miles. When I bought the truck it had 125k miles on it. I replaced the trans filter and changed the fluid the 2nd day I had it just to make sure it was done. At 165K miles I had the trans flushed. They said the fluid was pretty burnt at that time, but no shifting problems. Now at 200k miles I noticed it sliping and fluid coming out the blow-by. Is it possible a flush and new filter would take care of this? I am wondering if a cooling line could be pluged. Or with this many miles, would I be better off sticking a new Transmission in? Please advise.

Posted by on

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
  • 63,661 Answers

The fluid boiling over is caused by the slippage heating up the fluid, your clutch pack is worn out, you will need an overhaul.

Posted on Nov 07, 2008

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

I need to know what transmission is in my 99 gmc Yukon. Or how to find out


Shop for need to know what trans... on Google


Refurbished 1999 Gmc Yukon Transmission ...
$1,199.75
JCWhitney.com Refurbished 2003 Gmc Yukon Xl 1500 ...
$1,529.73
JCWhitney.com Refurbished 2002 Gmc Yukon Transmission ...
$1,199.75
JCWhitney.com Search Results

    I need to find out what transmission is in a 1999 gmc sierra ...

    www.cargurus.com > Questions > GMC > Sierra 1500

    CarGurusApr 7, 2013 - I need to find out what transmission is in a 1999 gmc sierra 1500 pick up 4x4 extended cab. ... Good luck. if the transmission is bad and you KNOW that for a fact, just go ahead and pull it ... My trans went out yesterday and I found one and wantto make sure it fits before I buy it. ... Used GMC Yukon Denali".

    Is The Transmission In A 1999 Gmc Yukon And ... - CarGurus

    www.cargurus.com > Questions > GMC > Yukon Denali

    CarGurusAug 15, 2014 - Is the transmission in a 1999 gmc yukon and a 2000 Yukon Denali the same. ... Does anyone know where I can get a fairly cheap used motor from in or ...Need a good fairly cheap motor for my 99 Gmc Yukon Denali 5.7L V8.

Jan 26, 2016 | GMC Cars & Trucks

1 Answer

Transmission fluid


You are correct to be concerned. Look and see if the transmission has any vacuum lines. If it does, check the lines by disconnecting them and see if transmission fluid is inside the lines. If there is transmission fluid present, the engine is drawing the fluid out of the transmission and burning it in the combustion chambers.

Radiator overflow- Check color of antifreeze in overflow tank. The radiator can have 2 chambers. If the chambers breach, the fluids can mix. Since the overflow can vent the excess fluids, it can provide an outlet for the trans fluid.
Leaks, most common. There should be staining and presence of oily residue. Check for lower cooling coil assembly. Some Makers use a separate cooling unit similar to a steering cooler if a 2 chamber radiator is not equipped.
You may be able to simply go to a quick change oil shop and drive over their service bay. They could check for leaks.

Jun 06, 2013 | 1999 Ford Explorer

1 Answer

Does the transmission need to have the fluid changed at specific intervals? S-Type 2006 Jaguar


you should have it flushed only at 40k miles.some dealers will say every 30k miles....but it should not be changed until 125k miles....the fluid is very expensive...35 dollars a quart...but up to this point just flush the fluid which will clean it for reuse...

Aug 25, 2011 | 2006 Jaguar S-Type

3 Answers

Is it necessary to change the transmission fluid on this vehicle and what is the benefit?


it is necessary to change the transmission fluid trust me i had one burn up a while back
the fluid is to lubricate and keep the gears running smooth after awhile the fluid gets nasty and alot of metal shavings will be in the transmission plate. if you dont change possibility of burning up your transmission or gears shifting hard. supposed to change filter and fluid every 30000 miles or so not everyone does it but coming from someone who has had to replace a transmission at 1200 dollars the little things help in the longrun. hope this helps let me know good luck

Jan 24, 2011 | 1999 Chevrolet Malibu

1 Answer

How much trannyfluid goes in a 99 gmc sonoma


5 QUARTS FOR FLUID FILTER CHANGE. IF REPLACING TORQUE CONVERTER OR TRANSMISSION OVER HAUL. YOU NEED 13.8 QUARTS. WHEN YOU CHANGE FLUID AND FILTER.BESURE YOU HAVE TRANSMISSION FLUID LEVEL TO THE FULL MARK BEFORE DRIVING VECHICLE.LET ENGINE IDLE UNTIL GET WARM BUT CHECK TRANSMISSION FLUID WHILE ENGINE IDLING.IF FLUID LEVEL DROP A LITTLE ADD A LITTLE MORE TO GET FLUID LEVEL AT FULL MARK.ONCE ENGINE GET OPERATING TEMPERATURE.SHIFT TRANSMISSION THROUGH ALL GEARS TWICE ONE AT A TIME.CHECK TRANSMISSION FLUID LEVEL.SHOULD BE ON FULL MARK.DRIVE VECHICLE FEW MILES CHECK FLUID LEVEL.IF FLUID LEVEL.FULL YOU GOOD.IF STILL LOW ADD A PINT AT A TIME.ONCE FLUID LEVEL CORRECT. SHIFTING OKAY TIME PLAY.YOU GOOD TO GO.

Jan 22, 2011 | 1999 GMC Sonoma

1 Answer

125K on a 99 mountaineer I just purchased. Should I let the mechanic do a tranny flush? TY


Is that Kilometers or miles? Is the tranmission fluid burnt looking?

Dec 16, 2010 | 2003 Mercury Mountaineer

1 Answer

The transmission is shifting hard going from 1st to 2nd and from 2nd to 3rd on my 1998 GMC sierra 1500 4x4 5.7 liter. This does not happen until about 15 to 20 minutes of driving. Before that the...


rec check fluid first. If trans fluid hasn't been changed in last 30,000 miles change fluid, filter and pan gasket. At that time inspect for foreign materials in bottom of pan or on magnet if you have one. If truck has over 100K and fluid was never changed you may have more problems if changing the fluid.

Jun 17, 2010 | 1998 GMC Sierra

1 Answer

I have a 1999 GMC 1500 4WD automatic. The problem I am having with it is that it will not shift and the speedometer is not reading. It will shift first and second manually. Can anyone help me?


sounds like the transmission might be low of fluid check it out if that does not help check transmission linkage is loose if not looks like the tranny burned out same thing happen to my suburban the tranny gave up completele

Oct 26, 2009 | 1999 GMC Suburban

1 Answer

Around 1500 rpms or 55 mph engine seems to bog down


It sounds like your low on fluid, or your transmission filter is dirty and the front pump is not getting enough oil supply. Worst is your front pump is going bad. 
Check the fluid level and see if it's burnt. Good luck

Apr 06, 2009 | 2003 GMC Envoy

2 Answers

@ what miles change autotransmision fluid & filter-HOW IF NEEDED?


follow maintaince suggestions. it's over kill but you should never have a problem if you do. I have a 99 gmc truck with 156000 and i've only changed tranni fluid once about 30000 ago. runs like a top. i don't abuse my vechile, so as long as you don't abuse and follow suggestions, it should outlast you. what i do, is i look at the fluid, when it turns a dark red and or get's a burning odor to it, deffinatly time to change fluid. try to do it BEFORE it get's that bad.

Dec 11, 2008 | 2008 Pontiac Grand Prix

Not finding what you are looking for?
1999 GMC Suburban Logo

306 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

63577 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21981 Answers

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

Answer questions

Manuals & User Guides

Loading...