fuel injection prob.

[blazinjimmy]

I bought a 1990 full size jimmy....parts truck. Seems you have to prime the motor to start it..even then it wont stay running. Its a 305. I know nothing about fuel injection.......so any help appreciated.

 

[1985_K5_Silverado]

Check engine light on? Is the ECM tossing out any trouble codes?

 

[sled_dog]

I bought a 1990 full size jimmy....parts truck. Seems you have to prime the motor to start it..even then it wont stay running. Its a 305. I know nothing about fuel injection.......so any help appreciated.

uhh its not getting fuel.... fuel pump pumping? fuel filter clogged? fuel pump relay even there?

 

[chevyk2500hd]

It shouldn't be a 305 i think you meant 350. Also when you crank it over is there any fuel comming out the injectors. Maybe they are clogged if it has been sitting for a long time. Also something else clogging fuel supply may be causing low fuel pressure.

 

[blazinjimmy]

Sled Dog....Uuuhh......I figured it's not gettin fuel. The guy drove it over...so it does run. I put new filter on and the pump is pumping. [like I said..not familiar with fuel inj., so I'm assuming the prob. is at the injectors-it has been siting for some time]

 

[sled_dog]

are they spraying? take the air filter and housing off. You will be able to see the injectors, have someone crank it, you will see the injectors spray fuel. Or you should see them do so.

 

[blazinjimmy]

Thanks for all the info.....here's where I'm at; pump is working, new filter...and there is no spray at the injectors. [truck was running prior]

 

[Dr. Morgenstern]

Filter in the correct direction?

 

[chiggly626]

One other thing to check is the little module in the distibutor that tells the injectors to fire. Mine went out in my 92 and I would have swore the fuel pump was bad.