Ford Focus spluttering

DONA

MEMBER
2005 FORD FOCUS
4 CYL
FWD
MANUAL
70,000 MILES

I have a 2005 ford focus 1.6 lx, recently water was found in spark plugs / core plugs, I had new core plugs fitted as they were very thin, I also had new spark plugs and HT leads but the car is still spluttering and sometimes backfires and engine management light comes on. The garage that did all this work keeps saying they do not know what is wrong. Please can someone help. Thanks.

Wednesday, February 9th, 2011 AT 4:44 PM

1 Reply

WRENCHTECH

MECHANIC
20,761 POSTS

The "check engine" light is an indicator for a system that monitors many electronic functions in the system, also called the "malfunction indicator lamp" (MIL). It can come on for any of hundreds of different causes from any of the systems that the computer monitors. Some are very important and can lead to further component or engine damage and some are emissions related not as serious but still a problem and need to be repaired.

Your first step is to have the computer scanned to retrieve the trouble codes that were set when the check engine light came on. Those codes will give you specific information about what the computer saw and will get you pointed in the right direction to find your problem. With a 1996 or newer and some 95 cars and you have an AutoZone or Advanced auto parts in your area, they will read them for free. Once you have these code numbers, we can be a lot more specific about what your problem may be.

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Wednesday, February 9th, 2011 AT 5:23 PM