20 Most Recent 2001 Pontiac Grand Prix - Page 8 Questions & Answers

Do you have power at the driver master switch ?

You'll need to get the computer scanned for trouble codes.Chances are there is a small leak in the EVAP system. Could be a valve or hose in addition to the gas cap.

have you changed fuel filter ?

It's in your dashboard either under the dash or behide the dash.

Ya know First i never drive a car at 4ooo RPMS cant remember when but anyway.
Check the Intake Air tube the goes into the air cleaner and throttle body for cracks and cuts and being loose. Fuel Pressure have it checked while you are driving to make sure your noy loosing fuel pressure at the high Rs. Ignition System Factory Plugs and wires no fancy discount suppose to increase horsepower stuff

You shouldn't need to change the fuel pump, but I would have it examined by a mechanic to determine whether or not the diesel has messed up your fuel pump.--------------------------------------------------------------------------------------Super MB STAR C3

you can go to advance auto and use there scanner for free to clear the code its called an obd2 connection or when you disconnect your battery you can touch your black negative cable to your red positive cable that connects to the battery and it will completley drain everything and reset but warning you if your trying to get the car through emissions your gonna have to drive the car 50 or 100 miles after you disconnect the battery each time..

that is not normal. sounds like you have the start of a bad intake manifold gaskt leak coming . GM 3.8 have bad intake gaskets. there something I want you to check please. I see a lot of these in my shop. it is a small hard plastic hose. send a picture of it and where it is. and the link to shop on facebookhttps://www.facebook.com/TedsRepairs

loosen the 2 bolts about at the rear of the exhaust going to the catalytic converter and then try to start the car (highly recommended you wear ear plugs) if it fires up right away your caty is clogged. believe me i just went thru what you are going thru. i replaced everything but the motor. another thing to try is pull the fuse for the injectors. if the car fires up and dies or if its acting like its gettin too much fuel replace the fuel regulator on the fuel rail and then ream out the catalytic converter

sounds like a bad body control module . it is located on the driver's side under thew dash

i have a non starting prob with the same motor. i am going to start with an air sensor

you can get the code at radio-code.com