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Enthusiast ![]() ![]() ![]() ![]() Joined Apr 22, '04 From Rhode Island Currently Offline Reputation: 3 (100%) ![]() |
when i start up my car it will rev up to 500 rpm then die. it keeps on doing this unless i give it some gas, well that used to work up until today, i have to keep it at 3k rpm for a few secs for it to idle at all (then it will idle at about 250 and the whole car will shake badly) , also iv been hearing a high pitch sound that has been gettin louder for a few weeks.... WHAT IS WRONG! the idle problem has been hapening since winter but just got worse this month. its almost unstartable now. PLEASE HELP ME!
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![]() Enthusiast ![]() Joined Apr 16, '04 From Worcestershire, UK Currently Offline Reputation: 0 (0%) ![]() |
I'm not a mechanic and don't even own a technical manual for my Celica so these answers might be completely off. Don't blame me if you try a repair based on one of my suggestions and it doesn't fix it
![]() As it sounds like your engine is hunting for idle there are three specific areas that need to be investigated: It might indicate that there is a problem with the idle control system who's job is to provide extra air to the engine when started from cold to regulate the idle speed. I don't know the specifics of the system used in Celica's but there are normally several components involved. You'll need to check with a mechanic as to which system is in the Celica (unless anyone knows?) but it will most likely be either a servo driven or an air controlled system, both of which have moving parts that can become clogged. It is also possible that there is a problem with the fuel\air mix. This may be due to a clogged fuel filter or the O2 sensor may have a problem. The O2 sensor operates at very high temperatures and I have heard that failure is quite common on high mileage Celicas. Without a properly funtioning sensor the fuel\air mix is wrong and can cause the engine to either run very rich or lean. This is not something you can readily diagnose, but a good indicator would be to smell the exaust gasses and see if there is a strong petrol smell. Finally this can be caused by a problem with the Catalytic Convertor. If its not connected or is damaged then this can also cause the fault, as the gasses can't escape. An emissions test will confirm if it has a problem. All in all I would suggest taking it to a Toyota dealer and getting it looked at. |
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Lo-Fi Version | Time is now: February 23rd, 2025 - 12:36 AM |