Question about 2003 Pontiac Bonneville

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2002 pontiac bonneville starts and stalls immediately, erratic tach reading, started and ran long enough to get it home and into the garage, shut engine off and would not restart, starts and stalls immediatly.

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: 1995 pontiac bonneville 3800 v6

P0321 Spark Reference Circuit. The spark reference signal is used by the PCM to improve ignition timing accuracy during crank and at engine speeds of up to 1,200 RPM. The spark reference circuit allows the use of ignition control mode below 400 RPM, eliminating the need to utilize module mode during start-up, and also allows the PCM to calculate true crankshaft position in 1/6 the time that use of the fuel control reference signal would permit. During normal operation, the PCM uses the spark reference signal to control ignition timing until the engine speed exceeds 1200 RPM, at which time the fuel control reference signal is used. There is no connection to the TCS.
If everything checks ok then the PCM is defective PCM.

Posted on Aug 28, 2008

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SOURCE: engine intermitantly stalls

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

Posted on Oct 24, 2008

  • 1 Answer

SOURCE: 1995 pontiac bonneville stalls

I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.

I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.

Posted on Dec 24, 2008

  • 1 Answer

SOURCE: 2001 pontiac bonneville SSEi 3.8 l supercharged.

I have a 2000 Bonneville - I had a problem with the car stalling out - then it did not want to start back up. (When it did it would idle up and down and then die) I changed out the mass air flow sensor - now I have not had a problem. Good luck with it.

Posted on Mar 17, 2010

  • 1 Answer

SOURCE: 94 pontiac bonneville... eats alternators, stalls

i have a 94 pontiac bonneville that stalls while driving. It seems to die always when I drive the car for more than 20 minutes. (During traffic) It recently has had a tune up (oil, oil filter, plug, wires) Replace module and fuel filter as well. I have had two different mechanics look at my car and no codes showed up for them. They mentioned fuel pump and crank sensor, which they CAN'T guarantee this will fix the problem. I've done some research online and have read that people with same problem have replaced both and this did not fix the problem. Any other suggestions??????

Posted on Mar 21, 2010

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1 Answer

2000 bonneville starts then dies. Check engine light on


Could be a number of things. If your car starts first thing in the morning and stalls shortly after, only to start again after it sits for an hour, it would be a classic example of a clogged catalytic converter. If it never starts back, I would check the fuel pressure, sounds to me like it could be a clogged fuel filter, faulty fuel pump relay or faulty fuel pump. If you have enough fuel pressure, check for a faulty coil, ignition module, or map sensor vacuum leaks.

Dec 12, 2013 | 2000 Pontiac Bonneville

1 Answer

My 94 pontiac bonneville just stalled. It is like it's shut down. At first is started stopping after driving it for a while. Now it just won't start. It's not the started, the engine, tran


It could be the ignition module in the distributor or the pick up coil mounted under the distributor on the shaft. could also be the coil you may need a mechanic

Aug 27, 2012 | 1994 Pontiac Bonneville

1 Answer

I have a 2000 pontiac Bonneville sle and it was running fine it stalled yesterday on me n after a bit started back up and ran fine the rest of the night, This morning It started fine and then 15 mins...


I had the same problem with my 2000 Bonneville SLE and I replaced the crank shaft sensor and it solved the problem. The crank shaft sensor is located behind the harmonic balancer. You have to take the balancer off to get to the part. You will need a puller to get it off. You will also have to take the fly wheel cover off and hold the fly wheel when you remove the nut from the front of balancer.

Jun 14, 2011 | 2000 Pontiac Bonneville

1 Answer

I have a 2000 Pontiac Bonneville. I have been having trouble getting it to start, but usually after 3 tries, it will start. Sometimes it will shut off while I am driving it. The service garage has replaced...


The next time the vehicle does not start you need to test fuel pressure. if you have none or very low pressure under 40psi on pressure gauge you more than likely have a faulty fuel pump or at least a fuel related problem. Based on this complaint I never would have replaced the above mentioned parts. Complete waste of money. When ever you have an extended crank issue always check fuel pressure first. More than likely it is taking a few cranks to build enough fuel pressure to start the vehicle. Watch this quick video and it will show you some basic testing for no start diagnostics. http://www.professionalfleet.com/videos/view/7-rough-run-stall-stumble-service-engine-light

Jul 07, 2010 | 2000 Pontiac Bonneville

1 Answer

Starting and running


check if the power to the fuel pump gets constant power when switched on it may have a electrical problem you may need to get a auto elect tech to help you

Aug 04, 2009 | 2004 Dodge Ram 2500

1 Answer

1998 Pontiac Bonneville overheat


no the computers only job is too turn on the fans. check for enough antifreeze check for leaks. these cars are known for leaks. if the water pump is broke internally it will overheat with in minutes, or if the thermostat is stuck it will overheat too.

Aug 04, 2009 | 1998 Pontiac Bonneville

2 Answers

1997 Bonneville 157K, driving and just stalls


sorry to say this, but sounds like the engine might be done, starting to seize up, have someone do an oil sample to see if any metal in the oil

Jun 28, 2009 | 1997 Pontiac Bonneville

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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