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Pontiac Bonneville Electrical Problems

117 messages,  Last post on Nov 30, 2009 at 5:17 AM

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#76 of 117 97 bonneville fuel gauge by rfifer Nov 23, 2008 (3:38 pm)
my 97 bonneville's fuel guage always reads full, i have changed the sending unit in the tank...i was told this model had an anti slosh relay...if it does could this be my problem?
#77 of 117 95 pontiac bonneville having problems starting by twil121489 Dec 05, 2008 (5:21 pm)
i have a 95 pontiac bonneville and its giving problems starting...i have to try to start it like 10 times sometimes before it starts..and sumtimes can take a really long time to start.....i've been told many things that wud solve the problems like i got the water pump changed, crank system, and today the fuel pump...this car is still giving the same problem!! can sum1 please help me!!! im soooo fed up..email me at twil121489yahoo.com ...thanx Replies to this message: imidazol97 (Dec 06, 2008 2:14 pm)
#78 of 117 Re: 95 pontiac bonneville having problems starting [twil121489] by imidazol97 Dec 06, 2008 (2:14 pm)
Replying to: twil121489 (Dec 05, 2008 5:21 pm) You need to test for the right combination... fuel, air, spark.   You don't mention how many miles. Or whether the fuel filter has been changed. So fuel could be a problem. Th fuel pump might not be making enough pressure to squirt fuel through the injectors into a mist that easily fires. That requires good testing. The replacing of the fuel pump requires dropping the tank and is tricky and dangerous because of explosion/fire danger.   The injectors might not be firing. You can hear them or feel the click when they open while cranking if you tought them. You can take a 194 bulb like the little bulbs used on side markers and taillights that have the two wire leads and put the leads into a connector for the fuel injector and see the bulb flash as the injector is fired.   You can check for ignition spark by taking a spare spark plug and connecting a spark wire to it while it lies on a metal part of the engine and crank. It should have a good blue spark.
#79 of 117 incorrect outside temperature reading by maurerush2112 Dec 20, 2008 (5:27 am)
outside temperature on '02 bonn. shows anywhere from 12- 25 degrees warmer than should. it adjusts after shut down, as it should with warmer underhood temps, but never gets close to accurate. It won't kill me not to have it, but up here in wisconsin der hey, it comes in handy when your out and temps fluctuate around freezing. tried obvious things, such as disconnect power for short time, check harness, etc. anyone with same experience? Replies to this message: imidazol97 (Dec 20, 2008 8:22 am)
#80 of 117 Re: incorrect outside temperature reading [maurerush2112] by imidazol97 Dec 20, 2008 (8:22 am)
Replying to: maurerush2112 (Dec 20, 2008 5:27 am) Have you simply removed the sensor in front of the radiator and cleaned the connector? From what you're saying it has been doing this for a while--it's not recent with snow or moisture getting into the connector out front?   You can remove the sensor and measure its resistance at various temperatures. I assume there's a table of proper resistances for various temperatures. It may be in the factory service manual. It's a relatively inexpensive part so depending on how much trouble you're willing to go through it might be easier to replace rather than test.   The same sensor is $15.98 from rockauto.com plus shipping. I'd get AC/delco ACDELCO Part # 1571823 myself. You could check autoparts stores for a quality brand.   OR   BUICK LESABRE 1999 BUICK LESABRE CUSTOM (1992 - 2005) BUICK LESABRE LIMITED (1992 - 2005) BUICK PARK AVENUE (1991 - 2005) BUICK PARK AVENUE ULTRA (1991 - 2005) BUICK RIVIERA (1995 - 1999) CADILLAC DEVILLE (1994 - 2005) CADILLAC DEVILLE CONCOURS (1994 - 1999) CADILLAC DEVILLE DELEGANCE 1997   are the models that all use the SAME sensor. Visit a recycling yard. Your odds of getting a sensor (ambient air sensor) would be good.   Good luck.
#81 of 117 Re: 94 Bonneville won't start [foxymouse] by fallacies Jan 10, 2009 (11:09 am)
Replying to: foxymouse (Dec 15, 2006 6:51 pm) well let me know if you ever find out the problem, mine is doing the same thing.   i will report my findings as well...   i have a 98 SE, and one day i thought i blew my starter, so i pepboys said it was my starter, so i replaced it, and my care began running again...   later, every once and awhile, the car would not start for an hour or hours at end... it would not kick or even try to crank--just the same as when the starter was dead; it would just sit, dead. then later start up powerful like nothing had ever been wrong...   now, it has basically stopped working... and i think that it was never my starter to begin with... when i turn the key, i have on "check gages" light and the "engine" light is on...   i believe the pressure and everything else is fine... and i plan to get an engine diagnostic as soon as it finally starts back up for me to get it to the car service...   if anyone has any suggestions, please contact me asap. Replies to this message: imidazol97 (Jan 10, 2009 11:33 am)
#82 of 117 Re: 94 Bonneville won't start [fallacies] by imidazol97 Jan 10, 2009 (11:33 am)
Replying to: fallacies (Jan 10, 2009 11:09 am) Have you completely checked the ends of the battery cables? If you have the double positive cable, cut the plastic so you can see in between the two. There is a post that corrodes and a spacer that may not make contact. Check the copper wire on each cable to be sure battery acid hasn't corroded down into the copper wiring.   Then you're down to diagnosing. Checking for power at the starter itself. Then checking for power on the relay terminal on the solenoid when someone turns the key.   Then you're down to using a cable to supply direct battery positive power to the starter terminal to be sure the car's cable isn't bad. If the starter doesn't work with a direct jump, then you know it's the starter.   Using a direct cable from battery positive to the starter positive is dangerous because you must not touch the cable to anything a part of the car or you've got a direct short which will cause fire and sparks. But it's the ultimate test.   BTW has your car been dripping oil from the oil pan where you park it? When I replaced the starter on my 98, the AC Delco rebuild shop asked if it was dripping oil. He said the oil gets in the solenoid and keeps it from making contact.
#83 of 117 95 bonneville electrical problems by msticco Jan 23, 2009 (11:53 pm)
Hi, I have a 95 Bonneville and have been having some electrical problems with it. For a long time I did not have any dash board lights but the check engine lights and stuff like that work. I also didnt have any lights on my radio or heating panel. Lately the dash board lights have been working. They came on about 3 weeks ago and have been working with out fail everytime. I went to get into my car tonight and my headlights dont work. I do have dash board lights still. I had a issue with the head lights a few months back but a couple of hours later they worked. Any ideas on to why its doing this? Could it be a fuse or do you think its an electrical issue within the wiring? Can anyone help me out with this? Its really starting to annoy me! Thanks. Any feed back is greatly appreciated!! Replies to this message: imidazol97 (Jan 24, 2009 6:13 am)
#84 of 117 Re: 95 bonneville electrical problems [msticco] by imidazol97 Jan 24, 2009 (6:13 am)
Replying to: msticco (Jan 23, 2009 11:53 pm) The first place to check is the battery connections, especially the postive battery cable which is double layer on many cars after a certain year. Cut the plastic to check for corrosion between the two positive cables. They are separated by a lead spacer/washer that may flatten and not make good contact after tightening over the years. Check to be sure the copper cable is not eroded away by acid as well near the ends of the cables.   Check the other ends of the connectors and the ground for the negatives. I suggest retightening them.   There are ground busses under the door sill plastic and carpet near the A-pillar. Driver's side and passenger side.     These are wrapped up in tape but still may corrode due to moisture from shoes dragging in snow and rain or open windows for some people.   Instrument panel connections behind the instruments also may slightly corrode and not make good contact. For certain problems reseating them helps.   There's no one cure without looking at the factory service manual to follow the wiring to see what shares what connector among your various problems. So I suggest troubleshooting the above suggestions.   Be sure to turn off your AC with the key ON so it parks its parts before disconnecting anything.   The only other problem area is a worn ignition switch and the contacts inside don't make good contact on certain connections out of more than one it makes when in ON or RUN. This is the switch, not the lock cylinder at the top. The lock moves a rod that operates the switch which is down on top of the steering column to make it hard to mess with in a theft attempt. Some have reported fixing problems by replacing that but typically it's a shutoff while running which restarts easily. That doesn't sound like what you're getting.
#85 of 117 Re: '93 sse-all electrical guages go heywire [clvjackson] by emh1 Apr 09, 2009 (5:29 pm)
Replying to: clvjackson (Jun 27, 2006 9:24 am) I have the same problem. Did you ever get it figured out?

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