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Kia Sorento EX hi i have a kia serento 2.5 deisel it keeps

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hi i have a kia...
hi i have a kia serento 2.5 deisel it keeps cutting out had AA out thay say its sucking air in around the fuel filter and also two code showing P1186 and P1188 what are the codes and what do thay mean.
Submitted: 6 years ago.Category: Kia
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Answered in 14 hours by:
12/13/2010
Kia Mechanic: Engineering Pro, Development Engineer replied 6 years ago
Engineering Pro
Engineering Pro, Development Engineer
Category: Kia
Satisfied Customers: 1,404
Experience: BEng. M-SAE, 15 years Vehicle Calibration
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Hello

P1186 - Fuel pressure too low

P1188 - Fuel pressure leakage

 

So the assessment of the AA would appear to be correct.

Once the leak is fixed, the codes can be cleared...

 

If you need any further information just ask

 

All the best

Jon

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Customer reply replied 6 years ago
hi again put new fuel filter house on with new filter but still it keeps cutting out but not as qwickly would it be a senser.
Kia Mechanic: Engineering Pro, Development Engineer replied 6 years ago
Did the AA guy use the fault codes to establish the problem or did he actually find a leak in the system? Jon
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Customer reply replied 6 years ago
he found the codes but could not find what the code meant i rang kia thay told me , aa man said the leak was comming from araound the filter houseing he put a rubber glove over the primming pump tghat got it running agian so we brought a new kia filter houseing and filter put it on last night ran ok for a while then i asellarated hard to see if it dont it again and it did ....
Kia Mechanic: Engineering Pro, Development Engineer replied 6 years ago
It sounds like you still have air getting into the system. The hard acceleration produces more demand for fuel and hence any leak will get worse under these conditions. Its probably best to get the local garage to pressure test the fuel system. It could be one the pipe union on the fuel lines that is leaking. It could also be that you developed 2 separate areas which are letting air in. The garage will be able to isolate the area, its not sounding like a huge fix and i would expect the garage to locate the leak in 2hrs max. But it is a leak, the engine is very sensitive to even the smallest air leak which gets into the flow of diesel and a pressure test will be the quickest way to find it, this is the better option than repeated changing of parts. Its probably worth seeing if you can mimic what the AA guy did safely though. Maybe just around the unions where you fitted the new assembly as this is most likely where the leak is... All the best... Jon
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