1998 3406e cat engine peterbilt stated engine 3 try it started and smoke and hum would not turn off until I unplug batteries help please

Please give this a go..Start with a throttle body adaptation. Needs to be done whenever the battery is reconnected after being disconnected. Turn the key to the ACC/ON position (without starting the engine) and wait about 3 to 4 minutes. You should hear some humming/clicking noises. After 3 to 4 min try to start it, should go. just needed the TB adaptation to cycle. with out a working TB no start, nada nothing.
Hope this helps

you will need to use your wiring harness from the original engine

it will be a special cat code so find a cat dealer and have it deciphered.

White smoke on start up of a cold engine is water vapour created by cold moist air and hot combustion ( steam). Mostly all cars will emit a whit wispy smoke until temperatures are elevated enough for the cat converter to turn it in something you cannot see. To be sure have a compression test done to check for gasket and have a coolant system pressure test done to check for coolant leaks

you have a severe missfire thats why the light is blinking
the smoke and sound were the cat converter[s] glowing red hot from the missfire
dont drive it untill the missfire is fixed or youll ruin the cats[if not already] plus a good chance of fire exists

Your problem is common in the RX-8. It occurs when you start a cold engine and shut it off before it reaches normal operating temperature. If your car does flood, you can first try depressing the accelerator completely and holding it (which shuts off the fuel pump) and then crank the motor for about 10 seconds (not longer or you may damage your starter). If this procedure above does not work, here is the technique a Mazda dealership will normally use (to be performed at your own risk): 1. Use jumper cables to connect to another car battery. 2. Unplug Air pump connector (the black circular motor housing to the left of the oil filler cap) 3. Take fuel pump fuse out (number 22, a 20 amp, 3 from the top of the second column of the fuse box 4. Crank for 4 seconds, pause for 2 seconds, repeat for about a minute 5. Leave for a minute 6. Crank for 4 seconds, pause for 2 seconds, repeat for about a minute 7. Put fuel pump fuse back in 8. Crank for up to 10 seconds, if it catches but doesn?t start, stop cranking 9. If not started go back to step 3 10. If started, wait 30 seconds for oil pressure to rise 11. Stand on throttle until white smoke stops coming out of the exhaust 12. Disconnect jump leads 13. Leave to warm up on idle for a few minutes 14. Put air pump connector back on (see note 3) 15. Go for a nice long drive to recharge the battery

You need to know why the battery went dead. It is usually a bad charging situation. It could be loose alternator belt, bad alternator, or a short draining everything. A quick way to check is to turn on the headlights after you have it started.
At idle the lights should be a little dimmer than when you rev the engine. If always dim, then the alternator is probably shot.

You should have fixed the oil leak. It could have started a fire, and is cheap to fix. If there is noise now, you may have ruined the engine by running out of oil. Check the oil.

Disconnect the stereo and watch the condition of the battery. Most of the time the stereo gets power out of the battery even when engine is off.

Rate this.

Take off your gas cap and have someone stand there with thier ear at the hole, (no smoking), turn the key to on just before start and they should hear the fuel pump humming. if they dont then try to start. if it doesnt start turn key off and at that instant the pump should be heard again. What i think is happening is your pump is not energizing . Its supposed to energize when turning your key on and off. This can be caused by a bad fuel pump or pump relay switch. Hope this helps. please rate me