Testing injectors
#1
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Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
Testing injectors
Hey guys. Been a few years since being on here. I have a 86 Cameron with a 383 using Holley stealth ram set up. Using 30 lb accel injectors. Tried to start the car up after sitting for 2years an wont start. I have 45lb at the fuel rail. The car starts if I spray starting fluid down the tb but won’t start on its own. Thinking it must be an injector issue. Looking to see where I should start
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Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
#4
Re: Testing injectors
before you pull the injectors. you can check power at them.
it. doesn't take long to have sticking injectors. I just took some 42s I had one a shelf for a few years and tested them real quick and 4 of 8 wouldn't open. power them up and soak them in some good carb cleaner for a bit to get them working.
it. doesn't take long to have sticking injectors. I just took some 42s I had one a shelf for a few years and tested them real quick and 4 of 8 wouldn't open. power them up and soak them in some good carb cleaner for a bit to get them working.
#5
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Re: Testing injectors
Get a noid light at autozone. Hook it up and crank the car. See if the injectors are even pulsing during cranking.
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Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
Re: Testing injectors
Funny you say that. I actually have a light set. Just need to take it out for my toolbox. I will be trying that once I get some free time this week.
#7
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Re: Testing injectors
I would lean toward the gas being bad. As long as the Ignition control module is sending it's pulse the ecm should be firing the injectors. Drain out the old gas and fill'r up with some new slew.
I thought that this newer ethanol gas didn't cause the varnish that the older gas did? I thought it just evaporated and left a powder.
I thought that this newer ethanol gas didn't cause the varnish that the older gas did? I thought it just evaporated and left a powder.
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#8
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Re: Testing injectors
Hey guys. Been a few years since being on here. I have a 86 Cameron with a 383 using Holley stealth ram set up. Using 30 lb accel injectors. Tried to start the car up after sitting for 2years an wont start. I have 45lb at the fuel rail. The car starts if I spray starting fluid down the tb but won’t start on its own. Thinking it must be an injector issue. Looking to see where I should start
Hard to believe all injectors aren't firing some sort of fuel to get some sort of kick in the engine. Fuel won't be the best but I've never had a car not start even with old gas like that.
#9
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Re: Testing injectors
JT definitely has a good point. However was ethanol used? We clean and test performance injectors every day that run ethanol. That fuel is nasty. It actually attracts moisture and can gum up inside the injector within a week or 2. Sitting for 2 years? Possible that they are clogged. Sometimes it takes us a few days to open those suckers up.
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