no start

[a_turbo_stang]

Ok I have went through the no start checklist and still nothing.

The car will start up fine when cold. I will drive it across town, turn it off. Then try to start it a few minutes later and it will not start. It is getting fuel and spark. Has a new module on distributer, new distributer, and still does it. Anyone ever have this problem? Any help would be great.

This problem started when I installed GT40 heads, Cobra intake, 24# inj, computer, mass air. These were all installed at once. I am not sure if one of these could cause this or not. But the guy I got these off of never had a problem.

 

[88stangmangt]

is your mass air meter for 24lb injectors? if you have fuel and spark i dont know waht else it could be is it throwing any codes?

 

[a_turbo_stang]

yea the mass air is for 24's. No iy is not throwing any codes. It cranks fine but no start. Bout ready to set it on fire, lol

 

[cjones]

when it won't start. can you smell an excess of gas??

try starting it with the gas pedal on the floor.

check for fuel pressure drop. the fuel pressure should hold for at least 60 seconds after shutting engine off.

 

[a_turbo_stang]

Yea you can smell fuel pretty good when it will not start. But it is not leaking anywhere. I will check for a drop.

 

[cjones]

Yea you can smell fuel pretty good when it will not start. But it is not leaking anywhere. I will check for a drop.

an injector is probably leaking and causing the engine to flood. try starting it with the gas pedal on the floor(flood start) and see if that works.

 

[a_turbo_stang]

Yea holding it to the floor started it. But i tried it a few hours after it had sit and not started. So more and likely I have a bad inj or a few of em bad? Is there an easy way to tell if they r bad?

 

[bjmellon]

You might also want to check the coolant temp sensor, if it reads too cold it will be fine cold, but crap hot... Does it run ok after it starts

 

[a_turbo_stang]

Yea when it starts it runs perfect.

 

[cjones]

Yea holding it to the floor started it. But i tried it a few hours after it had sit and not started. So more and likely I have a bad inj or a few of em bad? Is there an easy way to tell if they r bad?

after you run it for awhile(so it won't start) wait 10 min. and pull the plugs. the plugs that are wet are where the leaking injectors are.(don't try to start the engine before pulling the plugs or all the plugs will be wet.)

 

[a_turbo_stang]

Ok thanks I will try that tomorrow.

 

[HISSIN50]

also, if you play with the injectors more, search jrichker's posts if you want. he has written up a nice little test for checking injectors with soapy water. good luck

 

[a_turbo_stang]

I will check for some of his posts. Thanks

Will just 1 bad injector make the car not start? Or will I have several bad inj

 

[bjmellon]

I will check for some of his posts. Thanks

Will just 1 bad injector make the car not start? Or will I have several bad inj

Yeah it can, but doubtful. Definitely check for fuel pressure drop.... Another way to check the injectors is by using an injector pulser, and psi gauge to measure the amount of drop each injector has when its pulsed..