I have a 97 blazer.
Wont turn over when its cold replaced plug's,wires,cap,rotor,fuel pump,
fuel filter. Whats weird is that sometimes If I spray starting fluid in it it fires right up other times it wont.Here is the pisser once it's been running for a bit it will fire up every single time.Please help I am not a complete motor idiot but some helpful advice would be great.
Thanks
Chad

 

So when it's cold, it won't fire properly? The starter is turning over the motor, but it just won't catch and start?

If that is the case, I would look at the fuel pressure on a cold start.

 

Yeah.And thank you I will.I love this dam truck which is the only reason i haven't doused it in gasoline and set it a blaze.