I have a 01 Blazer changed out the radiator and now it stalls sometimes when I shift into gear or in park rev the engine and it idles down and stalls. Its fine at lights and stops. any ideas would be great i'm new to working on cars.

 

Ok what I've found after researching the sight and narrowing it down is that th TPS works much better when its pluged in!!!!!

 

Lol, how did the TPS get unplugged during a rad replacement? Glad you got it figured out.

 

When I replaced the upper rad line I loosened and moved back the air intake housing a bit and it must have comeapart then.