5.0 throttle body fi with ac auto trans with od runs great on interstate for about 30 miles then starts spitterin, sputterin, backfirin, & stalls out, wont crank back up for about 2 hrs
Cars & Trucks - AC
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Answers & Comments
Check spark plug gaps no year given can also be a bad cap and rotor or the throttle position sensor is worn /coil/ boots on coils leaking voltage coolant/oil leaking into spark plug chambers causing misfiring check all first before spending money you didn't specify year of vehicle so somethings may apply and may not post back with precise info for more help if needed
Also the egr may be clogged you can clean it out with anything a drill bit screw driver and carb cleaner the ports allow the unburned fuel GASES TO BE RETURNED BACK INTO THE SYSTEM BUT IF ITS CLOGGED THOSE GASES CAN'T GET OUT OF THE CYLINDERS AND NEW GAS AND OLD GASES ARE THROWING THE AIR FUEL MIXTURE OFF CAUSING THE STALL WHEN YOU PULL OUT THE PLUGS BESIDES CHECKING THE GAPS THEY SHOULD BE BLACK FROM CARBON FOULING AND IF YOU DO IT AS SOON AS it happens they will be wet from to much fuel in the cylinders wear gloves the plugs are extremely hot in a bare hand and about 205*-215*ok let me know your progress stephen
As for the tachometer check fuse and connector and the wires for it
It may need to be checked while it? having the tantrum.
Fuel delivery from contaminated fuel filter, fuel pump/tank, pressure regulator, vapor lock.
Sensors: coolant temp, intake preheat (stove), intake temp.
I guess it would be fuel delivery restriction or preheat intake stove ( easy to check ) for starters.