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Sedans Pontiac Bonneville Pontiac Bonneville Starting/Stallling/Ignition Problems
162 messages, Last post on Nov 16, 2009 at 6:09 PM
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Replying to: eagle18 (Jun 06, 2008 10:36 am) How many miles? What service has been done to the car in the past during the time you've had it? |
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| 99 bonneville stalling out when driving,or idling,i changed the o2 sensor,mass air flow sensor new spark plug wires,fuel filter,miles on it is 200.00.can you please help me.thank you.some times you have to wait to restart it,and thier are no codes that come upcan it be a coil pack doing this. | |
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Replying to: eagle18 (Jun 22, 2008 4:59 pm) It could be a poor contact for the spark control module at the wire for the whole set of coils underneath them. I forget the colormon the wire. It also could be a crankshaft position sensor. They tend to be more erratic and not start right away. You can try throwing cold water on the crankshaft position sensor. That sometimes makes them work right and start right back up. If that works, then you know what to try next! It might be camshaft sensor. But I believe they show a code. |
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Replying to: eagle18 (Jun 22, 2008 4:59 pm) 
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Replying to: johnjewkes (Jun 22, 2008 5:51 pm) In that case I'd take off the fuel filter. It's in front of the right rear wheel and easy to remove. I'd dump out what's in it into a glass jar to look for water. \ I recall hearing about a certain brand of discount station around Nashville that had something wrong with their gas delivery that killed a car shortly after filling up there. This was 2-3 weeks ago while we were there visiting friends. I've heard of stations getting diesel into their gasoline tank and causing a lot of expense to repair the cars it got pumped into before the station shut her down (cars were stalling before they could drive away from the station lot).
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I have a 2000 SE and it has developed what feels like be a miss. It seemed to start after I washed the engine. It now does it sometimes at highway speeds when you climb a hill, but it also does it around town when you accelerate. It doesnt happen all the time and I just replace the fuel filter and didnt help. Any ideas? Thanks
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Replying to: 55pontiacwagon (Jun 25, 2008 12:45 pm) Please HELP! THANKS John
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| millage 150,000 No codes, vehical will run between 20 and 30 with very little power then slowley cut out. Took to shop, said had low fuel pressure they put a new fuel pump in. Seem to fix the problem but 30miles down the road died. Now it will only run for about 5mins. Starts good when cold but with in 5mins will studder and die at idle, and will have problems starting unless you let it cool down. The alternator is good, battery is good the cables are good and cleaned. Cleaned up grounds, checked both wiring blocks and driverside under carpet and passenger side, both good and clean. Check the Idle air control valve seems to be good and clean. Tapped on the maf sensor didn't make engine stumble. (One thing the interests me is both battery cables neg and pasitive are very hot to touch.) I was thinking there is probably a short somewhere messing with the computer or a module. But again there is no codes. So it probably not a sensor, and it will start and idle good cold for about 5 to 10 min. All of the electrical part of the bonneville works lights everything. I always checked all fuses everythings good. I have read many of the posts on here and tried alot of them. Thanks for your help, have a good day. | |
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Replying to: john6363 (Jul 11, 2008 4:05 am) New spark plug wires--standard wires? New spark plugs at 80K would be standard for me; they're supposed to go 100,000. Check to see if there's an update to the PROM for the computer. They did an update for my '93 to keep the lockup torque converter from locking up at very low speed (47-50) and that doesn't transmit the normal engine roughness to the chassis as it did before. Clean the passages in the EGR (but that should throw a code)... |
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