Last post on Nov 12, 2011 at 5:07 PM
You are in the Buick Park Avenue
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Buick Park Avenue, Engine, Sedan
#32 of 51 Starting Problems
Jul 21, 2008 (4:41 pm)
I just purchased a 2000 Park Avenue. The independent dealer I bought the car from said that they were having problems with the car starting and that he put a new fuel pump on the car. Since I have been driving it on the 2nd day the service engine soon light has came on and the car will act like it is not getting enough fuel while being started, if you press the gas pedal while this is happening the car runs fine. Sometimes you can feel the car revving the engine up by itself. Also somtimes the car starts fine. I am taking the car back to him Sat. but was wondering if anyone had an idea what is causing this. The car has 93000 miles on it. There is no missing in the engine and the car drives great. Thanks,
#33 of 51 Re: Starting Problems [wornslick]
Jul 21, 2008 (5:09 pm)
I would clean the MAF sensor, check carbon on the IAC to see if it's gunked up. Both of these can be done while removing the throttle body to clean the gunk that flashes back and gunks up these things with a carbon goo.
Also I'd check the fuel pressure regulator FPR. There were recalls on some of those and they apparently do fail from the chatter I read on several forums about 3800 motors in H bodies. You can check one way for failure of FPR by pulling off the vacuum line from the FPR and looking for gasoline leaking into it. It sits right along the front of the fuel rail for the injectors and has a fuel line to it and a single vacuum line.
You can also check for bleedback of pressure into the fuel tank (or through a rusty fuel line) by turning the key to ON and then off afteer 3 seconds when the fuel pump turns off; repeat two times. Then start the car. This pumps up the pressure.
#35 of 51 Re: Starting Problems [imidazol97]
Jul 22, 2008 (2:43 am)
Thank You imidazol97. I will try the starting procedure this morning. The rest of the info I will talk to the dealer about. Would any of this show up in the codes that are now stored in the computer?
#36 of 51 Re: Starting Problems [wornslick]
Jul 23, 2008 (4:47 pm)
Went to my local garage today and had them check the codes. It had 6 P0446A codes. Also 1 B 1001 ansd 1 C 1245. I found out that the first one has to do with the fuel system. Maybe this could be the problem.
#37 of 51 94 park avenue
Jul 24, 2008 (11:23 am)
I have a 94 park avenue. It started missing when you are driving it. It slows down and when you give it more gas it gets slower. Pulling back on the pedal speeds it up a certain amount, but it still won't hardly go. Sometimes when it has set a while, it does fine with no problems, acceleration is fine. But now it has started missing again. This time the engine light came on. It barely made it home and went dead. I can't get it started now. It will start a few seconds when you pump the accelerator, then it goes dead. If you hold the starter in and keep pumping, it acts like it is backfiring while it trying to start. Could this just be a fuel filter? The pump is in the gas tank and looks difficult to take off.
Aug 15, 2009 (6:23 pm)
Well here goes. Last friday went to go to work and go wouldn't start, would turn over but not fire off. Listened for fuel pump and heard nothing. Just replaced fuel pump and low an behold it still wont start. got 45psi of fuel pressure and not running. The security light has been on for about 4 weeks now and ran fine. Even switched keys with wife and car ran fine but light stayed on. thinking ignition cylinder and switch bad. key also not worn down visually but no way to really tell. not sure how to check resistance on key either. PLEASE HELP!!!!
#39 of 51 Re: wont start... [myparkave]
Aug 16, 2009 (5:12 am)
If the car cranks, the problem is not the VATS system. VATS turns off the starter relay inside the car and turns off the injectors when it doesn't read the right resistance.
You don't say what year your car is.
The security light may be something related to an intrusion sensor. The trunk is a common problem. Disconnect the wire to the latch assembly for the theft sensor.
a first check is the battery cables. If there are two or more cables on the positive, separate them and check inside the plastic by cutting back looking for corrosion. Funny things happen when corrosion builds up inside and affects the connections. Also check connections at front of ESC plate under the coils.
#40 of 51 Re: wont start... [imidazol97]
Aug 16, 2009 (11:19 am)
Took it to shop today after trying that to no avail. She turns over well but wont start, thinking that there might be a wire in steering column pinched up but not too sure. Ive never been much of an electrician (haha). onna be ready to drop and cough soon too.
#41 of 51 Re: wont start... [myparkave]
Aug 16, 2009 (6:38 pm)
Basics are pretty easy. If it turns over, pull off a spark plug wire and lay it on the grounded metal of the engine, or insert an old plug and lay it on the motor. You'll hear and see the spark. No spark, then you're trouble shooting the electrical system.
No fuel to the cylinders as evidenced by gas smell in the exhaust pipe after cranking... check injectors for pulse--put in a 194 type light bulb by straightening the wires to check for electrical pulses. Other obvious check is for fuel pump running at all; but it may be giving low fuel pressure.