20 Most Recent 2001 Buick Park Avenue - Page 8 Questions & Answers

Did you change engines or replace parts on your engine? If you changed engines with a year newer the cam gear is different and it will also run this way. If you didn't change engines I'll post the timing marks. You line the colored links up to the marks on the gears

Check if vacuum hose is loose or cracked.

Might be under the hood in the fuse box.

put you foot into it a liitlle and see if it starts. If it does then you need to replace the Idle Air Control valve

It's possible that your water pump is worn and leaking.

yes as long as it is also a 3.8

did you rotat your tiers or air chock suspenchon ?

check your transmission fluid level.

There should be some sitting in a GM dealership someplace in the country,They used that module in alot of the models,Contact GM customer assitance # is in your owners manual or your local GM dealer.

Check the fuel pressure regulator on the fuel rail.It has a vacuum line going into it.Remove the line and if fuel comes out the regulator is bad.Replace it.This will cause a hard start when warm.The pressure sensor for the Evap.system is on top of the fuel tank.The po171 could be the fuel filter or o2 sensor.You need a scan tool to monitor the o2 readings to see if they are working properly.

check for fuses, fuel sender its a common problem in GM,cars,it cost like $45 from dealers ok,of course tank need to be removed,ok,GL

Try to get the fuel system down to about a quarter tank and open the trunk.Remove the carpet liner behind the rear seat.You will see a cover that is held down by about 5 or 6 bolts.Remove the cover and you will see the fuel tank sending unit.You have to remove the unit and replace the level sensor from the fuel pump assembly.This is what you are calling the card.Be very careful around gas.Good luck.

try shifting it to neutral then see if it will start if it does then you have a bad gear position switch if not could be a bad starter or ignition switch

There are 10 nuts that have to be removed.

Two ways:

Take the vehicle to AutoZone for a free analysis of the fault code.
Request a print-out and explanation (free). Afterwards, have them reset the system.
Let us know the fault code and a summary of the print-out.

You can aslo disconnect the negative battery cable for ten minutes, or so. It will reset the PCM. Be careful that you don't disconnect for much longer; the radio may set itself to "Theft" mode.

sounds like the air ride system has a leak when vehicle turned off-possible causes are rubbed throug lines or leaking shocks

These vehicles had some problems with the fuel sending unit card assembly in the fuel tank. The sensor reading fingers would wear down and not always give correct readings.

Your air suspension could be leaking, is there a whinig sound

From underneath, at the back of the light. Just turn the bulb holder counterclock wise, and pull it out.