86 S10 carb injector problems

Bama2008 · 01-21-2008, 03:01 PM

I have a 86 model S10 with the small v6 engine, the fuel injectors over the carb. the one on the right facing the engine sprays fuel, the one on the left doesn't, sometimes, I have hunted wire shorts etc.. Any suggestion would be greatly appreciated.

Thanks

junior3382 · 01-21-2008, 03:10 PM

I could be wrong, but if I remember correctly, the second one does not begin to spray until you need it. like quicker accelerations or passing on the freeway, it will dump more fuel under certain conditions. Otherwise, you would be using more then you need. At least that was how the carb injectors worked on my 84 olds I had. Are you having problems in the way the motor runs?

gmtech · 01-21-2008, 09:18 PM

just swap the injector connectors and you will know if is abad injector or the wiring

Bama2008 · 01-22-2008, 06:34 AM

when idling if both don't inject the engine skips very bad, the same happens when you go down the road

Thanks

Bama2008 · 01-22-2008, 06:36 AM

I will swap this weekend and try, what to do if the problem moves?

436'd skylark · 01-22-2008, 05:48 PM

They should both fire. an old shade tree trick would be to wire them off of one side. then they would both fire and the truck wouldn't skip a beat, assuming of course the problem is a bad wire, not a bad injector.

01-21-2008, 03:01 PM	#1
Bama2008 Junior Member Join Date: Jan 2008 Posts: 3	86 S10 carb injector problems I have a 86 model S10 with the small v6 engine, the fuel injectors over the carb. the one on the right facing the engine sprays fuel, the one on the left doesn't, sometimes, I have hunted wire shorts etc.. Any suggestion would be greatly appreciated. Thanks

01-21-2008, 03:10 PM	#2
junior3382 Senior Member Join Date: Mar 2007 Location: Currently, I live in Lancaster county, Pennsylvania. Posts: 3,040	I could be wrong, but if I remember correctly, the second one does not begin to spray until you need it. like quicker accelerations or passing on the freeway, it will dump more fuel under certain conditions. Otherwise, you would be using more then you need. At least that was how the carb injectors worked on my 84 olds I had. Are you having problems in the way the motor runs? __________________ *Parts have been found, tools are collecting, tensions are rising, the weather is changing...look out.... the SAS is comming!*

01-22-2008, 05:48 PM	#6
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	They should both fire. an old shade tree trick would be to wire them off of one side. then they would both fire and the truck wouldn't skip a beat, assuming of course the problem is a bad wire, not a bad injector. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

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01-21-2008, 09:18 PM	#3
gmtech Senior Member Join Date: Dec 2005 Location: farmville Va Posts: 348	just swap the injector connectors and you will know if is abad injector or the wiring

01-22-2008, 06:34 AM	#4
Bama2008 Junior Member Join Date: Jan 2008 Posts: 3	when idling if both don't inject the engine skips very bad, the same happens when you go down the road Thanks

01-22-2008, 06:36 AM	#5
Bama2008 Junior Member Join Date: Jan 2008 Posts: 3	I will swap this weekend and try, what to do if the problem moves?