84 Monte wont stop running

[firefighter2cu]

i have an 84 monte with a 4.3 tbi and when i go to shut the car off, it dont want to stop running. it will keep on running, rough, like it's over fueling, and eventually it will shut off. where would i start to look for such a problem?

[Lubricant]

Your car is "dieseling"..
have your cooling system checked and timing.

[firefighter2cu]

it dont diesel. the throttle body does not shut down. it keeps dumping fuel. just cuts back slowly but sometimes is stops like it is suppose to.

[JAYZ KR]

Check your fuel pump or carb. Timing may need to be checked!!!

[clownmunky2]

mine does the same thing and i was told that it was the carborator i am about to rebuild mine so i hope it will fix the problem i tried pumping the gas to get it to stop faster so it doesnt cause such a commosion and i think it helped

[molehole]

Try cleaning your carb and fill up the tank with some premium fuel - that helped mine a lot

[Lubricant]

The correct term is dieseling. The carb dumping fuel into the engine will NOT cause it to run alone. There needs to be spark also, or a level of compression thats keeping the cylenders moving in opposite attraction to each other. Possible timing problem at that point, or almost a definate one. The carb will continue to DUMP fuel if the engine is rotating regardless of key position or spark. The carb works independent of all other things..

[LittleAliens]

Just try setting the idle down a little. I had to do that to my 87 Monte awhile ago when it had this problem.

[montecarlossfan]

hello..anyone see it says TBI lol...Throttle Body Injection..., it may be your timing is off a little , or u need to use some top end cleaner