Hello everyone!

I've got weird problem with my blazer. The problem starts about two weeks ago... It cranks great, got fuel (62psi), got spark (nice blue), got compresion and security light turns off as it should but not starts. When I "push or haul" car about 2-5meters on 2nd gear it starts and run great, i can turn it off and start every time but after cold night or few days not riding its again problem with starting.

BR Everyone!

 

All you need to run is compression, fuel, and spark. So probably injectors are not being pulsed by the PCM to deliver the fuel into the intake manifold. This can be checked using a "NOID" light placed into the injector harness while cranking during a no-start situation. If this is the case, the cause can be a number of things - those can be addressed later. Good luck and best wishes for a successful repair.

 

Hi, I tried to start it on motostart spray and nothig, after when I conected to injector led bulb, its flashing. After few tryes spark plugs are wet and got fuel in exhaust.
Can it be bad crank position sensor?