Went out to start my jeep this morning and it will not start. when i turn the key the first time there were 3 hard knocks so i stopped. now any any time i try and turn over my jeep it only sits there and turns over the engine dosnt grab at all

 

It started running then the 3 knocks? Or it was just cranking when the knocks occurred?

 

it was cranking when the 3 knocks happened

 

Might have broken the teeth off the starter? It will still spin but wont catch, hopefully not the fly wheel. Check it out.

 

Well I got it started! i had to put the accelerator to the floor and it stumbled to start.

What dose that mean is wrong? Any ideas?

 

iac or tps, test and clean them both

 

What is an iac?

 

idle air control, its a sensor on your throttle body