Intercooler problems

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Works only at idle speed, acceleration failure

Kia Sorento 2005  134000 miles
Hi, I own a Kia Sorento 2005 turbo diesel intercooler 2.5 automatic and, one day, it stopped accelerating and a noise appeared, like a cellphone's vibration. I then stopped the engine 15 seconds, started it again and no failure was there any more. Four months later, I was driving on a highway, took an unpaved road and it suddenly stopped accelerating. I drove like this for 25 miles and, when returning to the highway, a strange noise like a little engine started to be heard. I turned it off and started it again and everything was alright. The same event repeated before arriving home and, when I… Read complete
Vallie from United States 9 years ago  
VA
5 reports 
Margaret from United States 9 years ago
Hello, I have a 2002 tlx 2.5 and the same happened to me. What is making that noise is a vacuum electro valve, which you need to disconnect and clean. Try connecting the hoses properly because I did it the wrong way and the van would not speed up. There are two electro valves, one that works with the EGR valve and the one that sounds in the oil manifold.
KARONHAPPUCK from United States 9 years ago
I finally solved the problem by changing that electrovalve that connects the hoses leaving from the repressor, the one that makes the contact closure activate.
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