Question about 2004 Hyundai Santa Fe

1 Answer

Blue smoke when starting frist thing in the morning

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,082 Answers

This usually indicates worn valve guides. When the engine sits for a period of time, the residual oil sitting in the cylinder head will seep down the valve stems past the seals and guide and into the cylinder. When you fire it up the little bit of oil burns off giving you the blue smoke. Usually clears up right away.

When the guides get worn and theres some play in the valve stem, it stretches the seals a little too so they nolonger seal very well and allow the oil to seep past.

You can replace the seals for a temporary fix, but will not last long as the play will stretch them again. Whats needed is a valve job. Not a quick fix. The valve guides need to be reamed and honed to resize them to fit the valve stems correctly to eliminate sideways play, then the valves ground and reseated and fitted with new stem seals.

Having said all that, if the smoke clears in seconds, you can keep going for a while yet. A little oil burn wont hurt much. As the wear gets worse the smoke will persist longer till it never quite goes away and you leave a trail behind you. Depending on your usage, (and how bad now) this could be 6 - 9 months away.
Hope I have helped.

Posted on May 23, 2011

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:

2 Answers

Why deos my car everytime i start it especially in the morning have a bkue/white/grey smoke come out of it


Don't worry about the smoke when your car starts it will mostly happen in cold mornings but as car heats up it should be gone its just cause the car has to heat up to a certain tempeture. Hope it helps.

Sep 02, 2015 | 2004 Toyota Camry

1 Answer

Hi does anyone know why my 2.4 tdci mk7 transit is hard to start 1st time in the morning once it's started its ok but when I try to start it in the mornings it a pig and when it does start I get blue...


This might help explain the causes and where the fault might lie! You didn't mention the mileage, if high it could be worn valve guides or seals!

Blue smoke is an indication of oil being burnt. The oil can enter the combustion chamber for several reasons.
  • Worn valve guides or seals
  • Wear in power assemblies (ie cylinders, piston rings, ring grooves)
  • Cylinder glaze
  • Piston ring sticking
  • Incorrect grade of oil (eg oil too thin, and migrating past the rings)
  • Fuel dilution in the oil (oil thinned out with diesel)
At cold start, blue smoke is often evident, and can reflect reduced oil control, due to fouling deposits around piston rings or cylinder glaze (which is actually carbon deposited in the machined cylinder crosshatching. These tiny grooves actually hold a film of oil, which in turn completes the seal between the combustion chamber and the oil wetted crankcase). Blue smoke should not be evident at any time, but it is worth noting, that engines with good sound compression can actually burn quite a lot of oil without evidence of blue smoke. Good compression allows oil to burn cleanly, as part of the fuel. It is not good though!

Jan 04, 2015 | Cars & Trucks

1 Answer

Why does truck blow blue smoke on starting?


The blue smoke is produced by the engine burning oil. If it only comes in the morning, that more than likely points to worn out valve seals.if it only comes on in the morning after you left it off for a couple of hours, I wouldn't worry too much about it. unless its a bad leak where you have to add oil all the time. Good-Day!

Aug 27, 2014 | Chevrolet Chevy Cars & Trucks

1 Answer

VW Passat 05. 01-05 shape. When I start it first thing in morning I get blue smoke, covers driveway, but only lasts about 2minutes and no smoke then or while driving. For that two minutes car also shudders...


You have bad valve seals. Blue smoke is oil burning. White is water/coolant, black is to much fuel. If the car runs good after the smoke, then it isn't a head job. I recommend you get a manual. It is exitensive work,, but follow the manual and you can do it.

May 12, 2014 | Cars & Trucks

1 Answer

Blue smoke warm engine start


Hi there:
You didn't specify how many miles or even what moto. Blue smoke appears mostly at morning start up because oil from the vehicle's engine is mixing with the gas inside the engine's combustion chambers, then burned together with the fuel from the injectors while the engine is running. This can result in a very expensive repair, but not always.

The more expensive and usually terminal reason for blue smoke is the piston rings have worn out allowing engine oil to pass into the combustion chamber.

Hope this helps.

Apr 22, 2013 | 2002 Jeep Grand Cherokee

1 Answer

When I start it up first thing in the morning it blows smoke untill engine is warm. Will I need to get new guide seal? 100 series 4.5ltr petrol


if it is blue smoke it is oil,what is happening is when the engine stands overnight the oil runs down through the valve seals & into the cylinders hence the smoke when you first start the engine you will most likely need to recondition the head ( new valve guides & seals plus a valve grind) it may be cheaper to fit a reconditioned head.....hope this helps.....cheers

Aug 13, 2010 | Toyota Land Cruiser Cars & Trucks

4 Answers

Blue smoke in morning start up


if it constantly is blowing out smoke trhen it sounds like you rhead is cracked. head gaskets or something in that area. it will run but ****. alos try an oil change if u havnt already..

Jun 02, 2009 | 1995 Honda Odyssey

1 Answer

Over heating white smoke out tail pipe when car frist starts


ok it could be a couple things check and/or change the thermostat if that doesnt work then try to replace the heater core

Nov 22, 2008 | 1993 Mercury Sable

Not finding what you are looking for?
2004 Hyundai Santa Fe Logo

498 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7772 Answers

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

Answer questions

Manuals & User Guides

Loading...