Ignition Switch or???
Let me go back to the beginning....Last July I was on my way to work in my 2000 Ram Van,3500 1 ton with a fuel injected 360ci,5.9L V8,automatic transmission with overdrive,extended body cargo model with hinged side and rear doors,no power locks,no power windows...has A/C and ABS brakes,has airbags....when all of a sudden,while driving,a buzzer from inside my dashboard went on and stayed on for approximately 2 weeks,until I reached up under the dashboard and removed it.This black box has six connectors on the bottom and is part #SF8956001077.As of now,if i reinstall this part,it buzzes constantly while the key is in the ignition,whether the van is running or not.
About 4 months after this incident,my running lights,dashboard lights,and headlights began to flicker off while driving at night for around 35-40 minutes.If I push my headlight switch in,then pull back out,the lights will all stay on for another 35-40 minutes,flicker off,then come back on again after I push/pull the switch.Also,my interior overhead lamps will come on and stay on while i have the dashlights on.
Last week while coming home from work,my van suddenly started sputtering,misfiring,and generally running poorly until I pulled it over in a safe location and shut it off.It wouldn't start again,so I had it towed home.The following morning,it started up and ran for about 10 minutes with no sign of falter at all...just sat there and purred like a kitty.I shut the van off,restarted it several times with the same result...perfect idle and slight revving conditions.I didn't need to go anywhere that day,so the van sat there the rest of the day.The following day,I reached in to start it up,and got nothing.Starter's easily turning the motor over,but nothing firing and no fuel pump at start up.
My fuel pump works fine and van runs great when power is getting to and through my fuel pump relay.Sometimes when I reinstall that black buzzer box under the dash,it seems to "wake up" whatever's responsible for sending power to my fuel pump.But reinstalling doesn't ALWAYS help.Mainly what I'm noticing now is,with the key in the ON position,I can rattle or wobble the key back and forth a little and "wake up" whatever is sending power to my fuel pump.I'm guessing the problem is in my key cylinder,or my ignition switch,which I'm trying to replace as we speak.Do these symptoms sound like a computer problem,or is my ignition not letting the right voltage through.New battery,alternater is charging properly,gave it a tune up because it was due.Have fuel pressure in the rail when I can get power to my fuel pump.The 30 pin on my relay has power all the time,the 87 pin only gets power when i jiggle the key in the cylinder.ANY help would be greatly appreciated,and any help I can offer will be gladly given. THANKS to the experts who save me!