Question about 1999 Pontiac Grand Prix

1 Answer

Engine wont shut off

Car runs fine but you can shut the ignition off but the car continues to run. I have to drive it around to keep it from overheating and after 1/2 hour or so it may or may not shut off. Sometimes longer sometimes less.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 53 Answers

This sounds like a problem with the ignition switch. You should get this examined ASAP.

Posted on Jan 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Car will shut off wont drive but engine keeps running then battery will go dead


It sounds as if your Ignition switch is damaged, or, you have a bad relay that is sticking. To check the Ign. Switch, remove the covers on the steering column to gain access to the switch, unplug it and the engine should stop, when it's running. If it's just cranking, it should stop when you unplug the switch. If it does, then the switch is the problem. The relays you'll have to troubleshoot individually with a test light.

If only the starter continues to crank after shutting down, then you need to test the solenoid on the starter as well as the starter relays and the Ign. switch to determine which is causing the current to continue to the starter.

Jun 17, 2014 | 2005 Nissan Murano

1 Answer

2004 Intrepid- when I start the car the RPM surges. If I put it in gear right away and try driving it continues surging down the street. If I start the car and wait like a minute before driving it usually...


The check engine light should be on and when it is the engine controls are in Limp mode. That means the computer is using a pre-set list of settings to try to keep the engine running long enough to get the car to a shop.
You need to get the problem with the MAP sensor fixed and get the light turned off.

Jul 09, 2012 | 2004 Dodge Intrepid

1 Answer

Car keeps running after key is removed. Taking out ignition fuse shuts off engine.


This sounds like the ignition switch is sticking/hanging & allowing the engine to continue to run. When you put the fuse back in, do the ignition lights come on, if so, then that should definitly be the problem.

You can try to wiggle the key from on to off several times when you shut it off to do further testing & you may see that it will shut off that way. More proof it's the switch.

Feb 17, 2010 | 1998 Mazda Protege

1 Answer

Does a fuel pump continue to pump fuel with ignition on when the fuel line is diconected from fuel filter The car wont start no codes found it has done this a few times this year it runs fine when running...


you have a bad fuel pump it's in the tank and only comes on in these conditions.
1. ignition switch turned to the run position turns on for two seconds.
2. same as above but when engine starts pump continues to run as long as engine runs. and the safety switch for blow out prevention has not been tripped.

Your problem is the fuel pump and fuel sock and the check valve in the pump. only one way to be sure and that's pressure testing. You hook up gage to fuel rail turn the ignition key to the run position look at pressure should read 40 to 50 psi and should hold for 1 minute, if you drop 5 pounds in one minute pump is bad and even if it started they could verify that the check valve is not holding pressure.
This is caused by the life of the pump by using gas with ethonal in it and your car was not designed for it, so it damages the pump and injectors and destroys the filter in the pump.

Nov 28, 2009 | 1996 Lincoln Town Car

2 Answers

2003 Nissan Altima stalls at intersections/ stops


sounds like your carb is getting to much air some where check your hoses

Sep 20, 2009 | 2003 Nissan Altima

1 Answer

1996 Honda Accord fan contiunes to ran after the car is shut off


YOUR ENGINE IS RUNNING HOT.IF FAN KEEP RUNNING WHEN ENGINE IS OFF.CHECK COOLANT MAKE SURE ITS NOT LOW. REPLACE THE THERMOSTAT AND RADIATOR PRESSURE CAP.YOUR RADIATOR CORE COULD BE BLOCKED AND THE RESTRICTED GRILLE FULL OF BEBRIS AND THE.ENGINE BLOCK COOLANT PASSAGES COULD BE BLOCKED OR IGNITION TIMING COULD BE OFF.ALL THESE PROBLEMS CAN CAUSE YOUR ENGINE TO OVER HEAT.

Aug 25, 2009 | 1996 Honda Accord

1 Answer

Truck dies but engine keeps running. battery or alternator?


You need an alternator....well unless your belt came off or got very loose. The truck continued to drive because the battery had enough juice left to run the ignition system, but after you shut it off there was no where near enough to turn the engine over or possibly even run the starter. The battery will have to be charged and a new alternator installed.
Hope this helps.

Apr 01, 2009 | 2003 Toyota Tacoma

1 Answer

Car wont start after driving


Ignition module is the likeliest place to look.

Oct 17, 2008 | 1993 Oldsmobile Cutlass Ciera

2 Answers

Engine stalling


ignition control module shuts car off when gets hot and will start after it cools on a 94 its under coilpack easy fix

Jul 22, 2008 | 1994 Oldsmobile Ninety Eight

Not finding what you are looking for?
1999 Pontiac Grand Prix Logo

120 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...