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#1 (permalink) Old 09-19-2008, 01:33 PM
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Default Kia Sorento Engine Cutting Out

Hi, I drive a kia sorento XE CRDi (2004). I have recently had the glow plugs changed but the engine keeps cutting out when i am driving approx 50/60 mph. Has anyone got any ideas as to why this is happening
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#2 (permalink) Old 09-19-2008, 08:34 PM
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Originally Posted by rjay View Post
Hi, I drive a kia sorento XE CRDi (2004). I have recently had the glow plugs changed but the engine keeps cutting out when i am driving approx 50/60 mph. Has anyone got any ideas as to why this is happening
Why did you have the glowplugs replaced? from what you siad we tend to think it was cutting off before this. And you just did this as a not know what I am doing bandaid.

First glow plugs only work on start up. After that ALL diesels will run for ever if they get an unending supply of fuel/air. So if vech starts and then gets to 50/60 and quits it is a fuel issue not air and was before and still is. Now since you in EU have Electronic Fuel Managment diesels. It could be one a many things going wrong. From the elec injectors shutting off to the fuel pump not keeping up to the fuel filter seeing better days. And then there is the wonderful water in system issue. Pumps of any type tend to like much more pumping thinner (water) liquids before thicker (diesel) liquids.

Since you wrote so little background, that is about the best I can do right now for you.
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#3 (permalink) Old 09-20-2008, 02:43 AM
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Hi,

thanks for the info.

I had the glow plugs replaced as recommended by a garage cause they were not heating up at all. The problem started when i place the key in the ignition, i have to turn the key and hold it for at least 10sec before the engine starts up (it never starts straight away like it used to). I'm know mechanic but what i've been told that it could be a blockage in the pistons?
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#4 (permalink) Old 09-20-2008, 10:56 AM
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Originally Posted by rjay View Post
Hi,

thanks for the info.

I had the glow plugs replaced as recommended by a garage cause they were not heating up at all. The problem started when i place the key in the ignition, i have to turn the key and hold it for at least 10sec before the engine starts up (it never starts straight away like it used to). I'm know mechanic but what i've been told that it could be a blockage in the pistons?
Ok this went form bad to worse now. Blockage in the pistons is pure rubbish. Are you saying that before from new it started up after the glowplug cycle on the first or second turn over of the eng or straight away like I think and should have? And that over time it started to not do this and you had an extended crank to start after teh glow plugs cycle? SO the mech told you and you did have all new glow plugs put in to cure this? You have been and still do going thru the plug cycle since new? Not turn key cold and try and start? Now after all this it still does not start straight off with a slight delay like all diesels have? And now after all this it now and only now never before this runs up to 50-60 and quits?

Only thing that I can tell you is this.

1) you had glow plug issue and now that is taken care of.
2) you had a fuel issue that you never knew about and now it is the only issue you see. And this needs to be addressed.

Fuel issue will make starting harder even with perfect glow plugs JUST like you have. Might even have caused the glow plugs to buy teh farm early too. And it will as well make for like I said before it falling flat on its face at 50-60.

You had a dual problem and the mech did not do his job to find it all.
Now start with the simple stuff and work back to the harder stuff in the fuel system. And as you did not again tell us about anything else you did or did not do to vech and mileage. We will assume high miles and no maintaince here now. Change the fuel filter and drain water first. Then see if it clears up in time. IF not then go for fuel pump output test. If this proves a clue make sure that the supply of fuel is getting out of tank too and had no obstruction.
I do not know if the diesels have a sock/strainer like the gas ones do. If this fails then move on to a ECU while running (like you say 50-60) injector shut down issue. This again is all I can say based on limited again info. Get a new mech that knows diesels well too is a big one too. You might even since it is a turbo have a tubo issue that is shuting down the eng at 50-60 for its own good.

Last edited by 04SorentoLX; 09-20-2008 at 11:00 AM.
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#5 (permalink) Old 09-20-2008, 12:18 PM
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There is plenty of evidence around about this type of problem. Here is just a sample from my "home" forum:
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The tank was then opened and the pick up unit and filters were also blocked by what I can only describe as what looked like silver shreds of something that resembled cigarette ash which could also be seen floating around in the diesel that was in the tank. When this substance was investigated it was found to be metallic and thought to have been a label of some sort that had been dissolved by the diesel. It could also have been put into the tank while filling with diesel somewhere but this would not explain other similar cases.
Note the phrase "other similar cases".


Fuel tank pick-up, gauge float:


Latest UK service schedules have diesel fuel filter changed every 20k miles/2 years (was 40k miles).
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#6 (permalink) Old 09-20-2008, 02:42 PM
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There is plenty of evidence around about this type of problem. Here is just a sample from my "home" forum: Note the phrase "other similar cases".


Fuel tank pick-up, gauge float:


Latest UK service schedules have diesel fuel filter changed every 20k miles/2 years (was 40k miles).
Pretty much we are both saying the same thing here to him. Quit playing around and address the fuel issue you have and had. Plain Diesel Mech 101. Or drive under 50-60.

Glow plug+air+fuel=Hot High Compression Repetitive Boom

Boom Boom Boom-fuel(for what ever reason you find for it)= Huge air pump for a very short time and then side of road on mobile if no restart.

Classicly If a diesel is not getting enough air it will be way down on power but will run fine. And will blow a tremendous amount of black smoke and soot. A vech running at 50-60will not just shut down. Thats unless the world runs out of air altogether.

Last edited by 04SorentoLX; 09-20-2008 at 02:55 PM.
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#7 (permalink) Old 09-22-2008, 08:17 AM
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ok, sorry 04SorentoLX for the lack of information but like i said before i'm no mechanic anyway i'll change the fuel filter and see how i get on.

Thanks again for all the advice i've been given, you both have been most helpful.
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