VECHICLE SOUND LIKE LACK OF FUEL LEAN FUEL MIXTURE IF YOU PRESS ON ACCELERATOR ENGINE DIES,I WOULD SAY YOU HAVE STOPPED UP FUEL FILTER OR WEAK FUEL PUMP.CHECK FUEL PRESSURE FUEL PRESSURE SHOULD BE 48 - 49 PSI. FOR THE 3.3 ENGINE FUEL PRESSURE SHOULD BE 55 PSI. WITH NEW FUEL FILTER INSTALLED ALSO CLEAN FUEL INJECTORS SEE WHAT HAPPENS.
I've had the Fuel pump replaced and someone has looked at injectors and couldn't see a problem.
Hi cassie, thanks for asking me to answer your question. For some reason, this page will not allow me to post a "solution" so this is why I am posting this as a comment to Jonah Oneal's solution. There is a Technical Service Bulletin for your vehicle that describes the exact symptoms you are describing and calls for replacement of the throttle position sensor which is known to cause this in your vehicle. If you would like a copy of the bulletin, post an email address and I would be happy to email you a copy. (I cannot post it here)
Dave (dttech)
My e-mail address is [email protected]
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This seems more of an ignition fault as the engine timing and ignition needs to be corrected. When the accelerator is depressed the RPM goes down indicating that the ignition unit does not get the sensor transducer to work. So there is no firing and it falters off. It is best to remove all plugs and check the spark intensity , check the timing of the engine or reset. Also the auto advance vacuum must be checked to work so that the timing advances on higher RPM.
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