Question about 1998 Pontiac Bonneville

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1994 pontiac bonneville fires up but stalls imediatly

My Bonneville will pressurize from the fuel pump start then stall,no injector pulse.I have replaced fuel pump,crank sensor ,cam sensor,oil pressure sensor,ignition module,plugs, The Car has only 46000 miles on it but I just cant get it to run!

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  • buntonscott Apr 09, 2009

    I have tried a couple of different things like installing a resistor in the vat chip wires and holding a key chip to chip on the wires to bypass. I recently bought a vats key bypass module but i am not sure i am connecting it properly!

  • Juan Guillen May 11, 2010

    Have you done any work in the ignition switch or with the key.

    because your car use a chip in the key, " anti theft system"

    your post look like anti theft system. Thank you,,

  • Anonymous Mar 24, 2014

    My wife was driving the car at 40 mph down a busy street, and the car just up and quit, no warning, no chugging, nothing, just quit. Now, it turns over, but won't start. We turned the key on, popped off the gas cap to listen for the fuel pump to come on, which it is, and even checked the fuel rail under the hood, pressed the valve and gas shot out, there's plenty of pressure on the fuel, so it's not that. We checked for spark, there's none at the coil pak. So, what is wrong? The coil pak? The crank positioning sensor? The Ignition Control Module? I need help!!

  • Anonymous Mar 28, 2014

    WE REPLACED THE FUEL PUMP, CAM SENSOR AND CRANK SENSOR WE HAVE NO INJECTOR PULSE

  • Kardoc Jan 27, 2019

    Just read this thread. Sounds like once the engine starts to run the electrical system has a loss of current. Check to see if the ignition switch is the cause.

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  • 67 Answers

WOW a 94 with 46K on it thats rare. Your computer may be bad it sends the pulse to the injector.

Posted on Apr 10, 2009

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1 Answer

I have a 1997 Pontiac Bonneville that is shutting off while I am driving. It eventually starts but it happens over and over. I changed the fuel relay switch but it still happens. what next?


How long since a tune-up? Are there any applicable trouble codes? Some of the national brand auto stores will check codes free. Does it stall at idle or going down the highway?
With extended crank, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and check fuel injector pulse.

If injector pulse is missing when problem is ongoing, two things I think of, do you have an rpm signal and security system where applicable. The rpm signal comes from crank sensor. Intermittent problems can be a pain to track. Don't replace anything unless your testing points in that direction.

Nov 06, 2015 | 1997 Pontiac Bonneville

1 Answer

92 bonneville died on way home from work.wldnt restart right then...got home and fired up for around 3 mins and stalls out...replaced crank and cam sensor...tested fuel pressure its good even when stalls...


Please excuse my ignorance on this american vehicle ,now a renault or a rover? anyway on the fuel line where the injectors are there is a vacumn controlled valve that shuts down with no vacumn so check the pipe and if need be use the same pipe to **** on the other end to check if its holding a vacumn .

Nov 30, 2011 | 1992 Pontiac Bonneville

1 Answer

I have a bonyville that some times stalls after starting then wont start wait a little while go out it fires right up and runs great


you could have a sensor that is bad like crank or cam.it could also be a fuel pump problem were the pump sticks and stops working.

Jun 10, 2011 | 1994 Pontiac Bonneville

1 Answer

90 Bonneville Se will stall while driving, shift into neut. and off we go but sometimes it will crank and crank and not start for awhile


Sounds like you may have a weak fuel pump.Check you fuel pressure with key on engine off the fuel pressure should be 40-47 psi if its not replace pump.

May 08, 2011 | 1990 Pontiac Bonneville

1 Answer

95 bonneville stalls then starts then in about 5 mins. Stops again. Replaced fuel pump a fue months back. Best luck was replacing relay for fuel pump. Now that doesn't help.


If your check engine light is on, find out the codes. I would have the fuel pressure checked again, first run the car until it stalls again and check it. I've installed pumps that went bad in as little as a couple days

Jun 16, 2010 | 1995 Pontiac Bonneville

1 Answer

03 bonneville hard starting,stalls intermittently.seems like starving for gas at times. changed fuel filter and added several fuel injector cleaners


Hello! There are a couple of possibilities for your issue:

1) Fuel pump relay - this tells the fuel pump resistor to turn the fuel pump, either in high or low mode.
2) Fuel pump resistor - see above (very common issue)
2) Faulty fuel pump


Hope this helps and thanks for using FixYa!

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do your have injector pulse (will need to puchase noid lite to check)

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Have you chg.fuel filter and had a fuel pressure test done? Does it have spark after it stalls? Fuel pumps are a common problem, they work when cold get warmed up they quit, after a while quit all together. Do the fuel pressure test.

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Fuel filter could be cluged, has it been chg. lately? Fuel pump could be weak, or ignition switch going bad.

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1 Answer

Engine intermitantly stalls


if this a fuel injected car just check to fuel pressure first.

Oct 24, 2008 | 1994 Pontiac Bonneville

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