Replace the fuel filter first thing. Remove the battery cables and clean the cable connections and the battery connections. Check all electrical connections under the hood to insure they are tight and secure. Look at all wiring for any wire that may be shorting out as in a bare wire touching metal.
It for sure will not hurt to clean the throttle body. From your test the battery & alternator are good. You either have a fuel problem or an electrical problem for sure. The reason for replacing the fuel filter is that I have seen a partially clogged fuel filter cause similar symptoms so be sure and replace it. There is a product I highly recommend that may help if you have a problem within the throttle body or plenum. Purchase a can of Seafoam Motor Treatment. http://www.seafoamsales.com/motor-treatm...
Seafoam is not an oil additive which I never recommend. It is however a fuel system cleaner, moisture remover, and fuel stabilizer. One of my favorite products that I have seen more than once work wonders on a fuel system problem. Ask for it at your local Auto or Marine parts store. You may eventually find this is an electrical problem of some sort as your symptoms seem to indicate and intermittent electrical problem, which are very hard to find. That is why I suggest you disconnect and reconnect every electrical connection under the hood that can cause this. One other thing is that when this happens, immediately turn the ignition off and then turn it back on without trying to start the engine. You should hear the fuel pump run for a few seconds and then shut down. If you do not suspect a fuel pump electrical connection problem or a fuel pump relay. I hope this has been helpful, and good luck. You have one of those problems that is very difficult to diagnose.
You are most welcome and I am glad this has helped. I appreciate the response and it is nice to hear.
May I add that on modern fuel injected computer controlled automobiles it is not necessary to let the engine warm up unless it is below freezing and you are actually doing harm to the engine. Start your car and then put your seatbelt on. Immediately put the car in gear and then drive the car easily for the first couple of miles. This is the very best way to warm your engine up and does less damage to the engine than letting it idle. The engine performs it's very best at full operating temperature. Sitting and idling takes a very long time for the engine to reach that optimum temperature and during that time the engine is not burning the fuel as it should. During that period of time the engine is putting out a far greater amount of pollutants than it will when it is at the correct operating temperature. It is actually wearing internal parts more when operating cool than when hot. You want the engine to reach that optimum temperature as quickly as possible to avoid engine wear and poor fuel economy. That unburnt fuel can damage the internal engine parts and the catalytic converter and O2 sensors, which take a beating when the engine is first started. Therefore you should start driving the car and not just let it idle. If it is below 25 degrees then let it run for about 30 seconds before moving, below 25 degrees about 1 minute and then move out. This is the best way to take care of your car. The days of autos with carburetors and having to let them warm up is over.
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Hello Guru, thank you for your recommendation, you mentioned that replaced the fuel filter first, I will try, but some people told me to do the "throttle body inspection and cleaning with the instruction" and I will try too. But, battery problem, couple months ago, I have taken off the back seat cushion with lubricant the + & - poles of the battery and found the battery is very clean and also I have replaced a 10 amp fuse while it burnt out, and test the battery in 12.3 volts (approximately) while off the ignition of the car, and almost 15 volts while start the car, is by means of the electrical connections under the hood to insure they are tight and secured. regards.
Hi Guru, once again, thanks for your recommentation, tomorrow i will try to use the throttle body cleaner, but i could not surely SeaForm product has in my living area, i think either one of t.b.c. would be okay? And wait and see couple months, if happen again, I am going to change the fuel filter, then happen again, i will check the electrical connection and also follow your instruction to test and hear the fuel pump run for a few seconds.
I brought this car in 6 months ago, Ah! Look at this car, how beatiful it is, i really do not want to give it up, i keep and enjoy it.
Yes, you are right, it is very difficult to diagnose, once before, some one has diagnostic my car and said that the sensors beside of the engine has problem and told me to change the sensors, but he said that it could not warranty the problem would be gone after replacement, so i changed my mind do not change, because of the car is still running very well except occassionlly breakdown before of the red light, then turn off and on the car running smoothly away, even though it caused a little unconvenience yet i think it is not necessary to do so. Any way, i will do the first step throttle body cleaner first, then wait and see.
Hello Guru,
Thank you very much for your recommendation that I have followed your instruction and put a small can of Sea Foam into the Gasoline Tank and cleaned the compartment of the Air Filter with Throttle Air Cleaner and replaced with a new one, I need observation the performance of the car. But, one thing I like to warm-up for awhile of the vehicle before driving, it could see looks good helpfull for the electrical function especially in the Winter.
For this car, I think warm-up is very important.
Once again, thank you very much for your suggestion. Regards,
sytong
2009.12.10
Hi Guru,
Thanks for recommendation of replacing the fuel filter and checking the electrical, I see the vehicle message center that the engine oil 6% left would be changed and then, by the way I will let the mechanic looking after the fuel filter and electrical job. It will be waiting until Christmas or after, anyway, thanks very much, Merry Christmas and a Happy New Year. sytong 2009.12.10
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