3.4 L engine - removing fuel rail and injectors

2002 Monte Carlo replacing the intake manifold gasket...

Engine has been disassembled to the fuel rail. I've removed the hold down clips and the fuel rail is ready to be lifted out. ...

Is this procedure correct...

The fuel rail should just lift out, taking the injectors with it. No need to remove the electric connectors from the injectors as I have disconnected the entire harness.

Now how to help each injector out of their hole. Do you squirt penetrating oil to help lift the injectors out ??? Should I try prying with a screwdriver or apply slight leverage with any type of tool ??

Do you apply pressure anywhere else to pull the rails out evenly.

Everything is going pretty good so far, don't want to screw anything up.

Thanks !!

Peter

Reply to
Peter
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You can use a screw driver or the likes to gently pry up on the rail to pop the injectors. No need to squirt any penetrating oil or anything else in there. First though, try to blow out the entire area well to get rid of sand, and other built up debris. Try to use a small brush to get around the injectors while blowing it out. Just work gently and work your way along the rail. They'll pop. Be careful not to put too much pressure or force into it, so that the last injector doesn't get yanked too hard when the center one comes free.

Reply to
Mike Marlow

Thanks for the quick response Mike...

Vacumned, brushed, vacumned again ( to avoid get dirt in any other components) and finally blew anything remaining away.

Used a small pinch bar, with a towel, under the reinforced parts of the rail and everything moved up as nice as could be. Thanks again for your assistance !!

Now when I reseat these, what's the best way to insure they are completely seated properly ?? I'll be wiping out the bore, installing lower 'o' rings and using silicone lubricant on the o rings for proper seating..... also torqueing down the rail clip bolts. Anything else ??

Peter

Reply to
Peter

Big bars Peter, big bars. Real guys only use big bars. Remember that for next time.

That's it. Get them started evenly and gently work each one down a bit until they pop home.

Reply to
Mike Marlow

There is no reason to remove the injectors. You can sneak the lower manifold bolts past the fuel rail.

Don't use silicone grease, it will contaminate the oxygen sensor(s). Use engine oil to lubricate the O-rings.

Reply to
aarcuda69062

Thanks for the tips..... injectors are already out , but I'll definitely keep this time saver in mind.

Engine oil instead of silicone lube. That works for me !!

Thx

Peter

Reply to
Peter

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