Engine trouble Car has sat for quite awhile and is now hard to start, even in warm weather. It does not idle properly, continually stalls out until engine has warmed up. When the gas pedal is depressed,the engine seems like it is starving for gas or air. Also, the oil pressure gauge goes off the scale upon startup. I have replaced the spark plugs, fuel filter, oil, and removed the injectors which I soaked in diesel and then replaced. None of these things made any difference! PLEASE HELP
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My car runs good when it's cold but stalls once it warms up? ... In this situation, you can usually re-start the engine once it has hada chance to cool back ... it'll fill-up and exits fuel right up and out the vent tube which dumps it down the middle of ...
Jun 28, 2010 - Car starts and after warmed up.. it dies! ... but if i let it sits for awhile till the engine is cool down it starts right up but after its warmed up.. it dies.
When the engine warms up the engine computer goes into closed loop mode and relies primarily on the O2 sensors and the MAF sensor to calculate the correct fuel to air mixture - if one of the O2 sensors is fouled or the MAF sensor is not working properly, this can cause the problem.
Given the age of the car, I would also check the idle air control (IAC) and channels, the EGR valve and the throttle body for carbon buildup.
sulfer smell would be your egr valve not working. as far as stalling check the signal at crank sensor . also when your checking, maybe replacing the sensor check and make sure your harmonic balancer isn't broke. check rubber mounting surface for any melting and stuff like that..
Sounds like you may have a bad coolant temp. sensor, scan your system for trouble codes, it may tell you, or just change it, at least you'll eliminate one possibility.
Most likely if it is temperature related you may have a temperature sensor that is failing. The sensor may not be reacting properly to the actual temperature and causing the engine to run rich in warmer weather when a richer setting is not required.
You could have a sticking injector or sticking EGR valve or a faulty TPS switch, all can cause a rich condition and a poor running engine.
Is the service engine light on or come on at some point?
I would start by having the car scanned for trouble codes. You can have the scanned at no cost to you at your local Auto Zone or Advance Auto Parts. Write the codes down and respond back.
Guessing gets expensive. Is the check engine lamp ON? If so, there will be stored trouble codes that are necessary to propely determine the cause of the stall. Catalytic converters do not unplug when cold, if they are plugged, they are plugged at all temps and vehicle runs worse the more gas you give it but may idle OK. Typically, stalls after warm are electrical failures, often computers, or solid state components that fail when they heat, and cool off over tyme. Ignition components are highly suspect generally, as are sensors. crankshaft position sensor especially is common to fail only warm on most vehicles.
One of the more common problems with the 2.5L & 2.2L engines that suffered the symptoms your describing, such as, starts & runs good, then at any given time would just quit, not start, but after sitting a while, or by the time the mechanic gets to it, it starts right up, or you sit on the side of the road for 20 min. or half hour then away it goes for a while longer, then quits again down the road. There is a pick-up plate under the distributor cap & rotor, with the wiring plug coming from it. 90% of the time, it's defective, and cuts out especially, but not limited to, more often when weather is hot.
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