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Re: 1995 pontiac bonneville will not start
Is there corrosion on the battery cables under the insulation. There may be a smaller + battery wire going from the battery to the fuse block. Same for the ground. Are these cables clean and secure. If so start checking fuses and voltage.
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Test the battery charge, and alternator. The easiest way to eliminate the alternator is to start and remove the positive battery terminal, if it dies your alternator is bad. You can also go to Auto zone and they will test them for free. Sounds like you don't have enough cranking amps out of the battery though.
I would want to know if you have at least 12 volts at the battery posts, and also at the starter. You need to know if the cables are causing the problem, or something else. Once the engine starts, it should be running off the alternator, but it still needs the battery in the circuit.
Most likely you have a bad connection somewhere. Trace the battery cables and clean/tighten all terminals or try jumping to a different lug. You might also try removing the starter and jumping directly to the starter to verify that it is good.
Did your Bonne start OK but slow before battery swap? Does the motor not turn over at all? Can you jump start the new battery? If your 3800 V-6 is not turning over now...try tapping the starter with a hammer then try to start...for this scenario...the starter needs replaced...not a bad job on you Bonneville...:)
It sounds to me like you need the negative terminal on your battery to see if it has loosened off.If that is not the case then you need to check the negative cables to the block and the body of the car.do the same with the positive cable and verify that the wires to the starter are tight.
The problem doesn't need to be the starter; the first thing you should eliminate is the chance that the problem is only poor contact at the battery terminals, the point where the negative cable is attached (either body sheet metal or engine block) and the starter terminal itself.
You can buy a tool for cleaning battery terminals at any auto parts store or, if the battery has side terminals, use any wire brush.
- Disconnect the negative terminal from the battery first.
- Then remove the positive terminal.
- Clean all parts throughly.
- Reattach them.
- Try starting the engine.
If it doesn't start;
- Disconnect the negative terminal again.
- From under the car, locate the starter; it will be at the junction of the engine and transmission and it will have one end obviously butted against the transmission housing.
- Remove the heavy cable from the starter and clean the cable end and the starter terminal.
- Reattach the cable to the starter.
- Reattach the negative battery terminal.
- Try starting the engine.
If it still doesn't start, it may still be only a drained battery so find someone to 'jump' your battery and try to start the engine again.
If it still doesn't start, then the starter could be bad.
I've had pretty good luck with rebuilt starters and these will cost far less than new.
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.