Chevy Corvette Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
11 Posts
Discussion Starter #1
I have an 89 C4 with an automatic. It will start ok the 1st time you crank it over but if you turn it off it wont start again for an hour or so. Thought it might be injectors so I checked the fuel pressure and sure enough it drops down quickly but I am beginning to doubt it is the injectors leaking down. If that was the case it should have a flooded smell when trying to crank again and if you give it a shot of starting fluid it will start up again.
Could there be an injector bypass or something that is sticking open? If so is there a way to verify?

Thanks
 

·
Registered
Joined
·
2,799 Posts
I have an 89 C4 with an automatic. It will start ok the 1st time you crank it over but if you turn it off it wont start again for an hour or so. Thought it might be injectors so I checked the fuel pressure and sure enough it drops down quickly but I am beginning to doubt it is the injectors leaking down. If that was the case it should have a flooded smell when trying to crank again and if you give it a shot of starting fluid it will start up again.
Could there be an injector bypass or something that is sticking open? If so is there a way to verify?

Thanks
I would wager that the fuel pump is where your problem is.
 

·
Registered
Joined
·
14 Posts
I have an 89 C4 with an automatic. It will start ok the 1st time you crank it over but if you turn it off it wont start again for an hour or so. Thought it might be injectors so I checked the fuel pressure and sure enough it drops down quickly but I am beginning to doubt it is the injectors leaking down. If that was the case it should have a flooded smell when trying to crank again and if you give it a shot of starting fluid it will start up again.
Could there be an injector bypass or something that is sticking open? If so is there a way to verify?

Thanks
Try pulling a couple of plugs to see if there wet.
 

·
Registered
Joined
·
9,695 Posts
I have an 89 C4 with an automatic. It will start ok the 1st time you crank it over but if you turn it off it wont start again for an hour or so. Thought it might be injectors so I checked the fuel pressure and sure enough it drops down quickly but I am beginning to doubt it is the injectors leaking down. If that was the case it should have a flooded smell when trying to crank again and if you give it a shot of starting fluid it will start up again.
Could there be an injector bypass or something that is sticking open? If so is there a way to verify?

Thanks

It sounds like it's fuel pump related. Have someone else turn the key on while you listen to the gas tank. The pump should buzz for two seconds then shut off. You may have a bad fuel pump relay causing your problem. If so they're easily replaced and only cost about $15.
 
1 - 4 of 4 Posts
Top