2000 Buick Park Avenue 6 cyl 80,000 miles
So my 2000 PA Ultra likes to stall when:
A) The engine is cold
B) When the car is in motion, within the first 30 to 60 seconds of driving, and going down hill. Or presumably when it's running with my foot off the gas, but not when I first start driving it, like putting it in gear or even stopping at the end of my street. It will also never stall at startup.
In order to get it started again, I have to press the pedal when starting and keep the engine revved above 2000 RPM's for about 10 seconds. If not, the RPM gauge will go right to zero and it will stall again.
It won't stall at all when the car is warmed up for 5 minutes and the engine revved, above 2000 RPM's, a few times. This process does not need repeating unless the engine is cold again.
The only part I can rule out is my TP sensor. I installed a new one, and although my car is running much better (and faster), it hasn't solved the stalling.
When my car is first started and I am revving the engine, it has a whinny sound. Also, when in idle, the colder it is, the longer it takes for the engine to slow down. Maybe normal but it seems to take too long.
I'm pretty certain I have one or two spark plugs that are misfiring as the car sometimes has a very 'weak' startup sound and the power isn't what it used to be (yes, it is better with the new TP sensor, which I installed correctly). I'm not sure if misfiring sparks can make an engine stall in this fashion. I do know my car doesn't seem to get codes unless a part completely fails.
BTW, if any other PA owners, wth '99 or higher vehicles, are reading this; can you let me know what your RPM reading is when your car is stopped and in Drive? Mine is around 500, which is lower than it once was. It's 800 to 1000 in Neutral
have the same problem?
Wednesday, December 26th, 2007 AT 12:44 AM