Hard starting.

[Kybol]

When my ty is cold it will start right up with the turn of the key. Once it is warmed up it wont start unless I hold the throttle wide open, if I dont it will just turn over and not fire up. Any ideas what could cause this?

 

[BoostedSUV]

Re: Hard starting.

I'm having the same issue. Did you ever figured it out? I just changed throttle bodies along with the sensors (bought a BBK) and its still doing this. Sometimes I can't get truck to start at all!

 

[Kybol]

Re: Hard starting.

I think it may of been my fuel pump relay, I forget what it was for sure though.

 

[BoostedSUV]

Re: Hard starting.

Yeah its been a while since this thread was started. I was doing a search and you are describing the same exact issue I'm having...

 

[kentuc]

Re: Hard starting.

If not the temperature sensor than the pick up coil in the distributor.

 

[BoostedSUV]

Re: Hard starting.

If not the temperature sensor than the pick up coil in the distributor.

didn't mean to hijack this thread and start a new one... I changed distributor from a stock one to an MSD. Had problem before and after....

 

[HiPerformanceHill]

Re: Hard starting.

I had this problem on my 92 S blazer. I went to an electric fan for testing without the mechanical fan. If I waited to let temp go above 200f it wouldnt start. This all started in 100 plus degree weather one day when I started having issues with it wanting to die and not restart until it cooled down. I never for sure fiqured it out, but other issues led me to believe it was the fuel pump relay on the fire wall. Also, do you still have the egr on your truck? Could this cause it?