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Old 11-08-2012, 07:00 PM   #1 (permalink)
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Default wtf 03 injectors in an 04?

okay i figured out my problem i think anyways. its had a misfire code and it runs kinda crappy since i bought it from the guy and when i bought it he was like oh it also has 03 injectors for some reason. me not knowing the 03's were 527ccs and the 04s are 577ccs didnt care. then i thought about it when i couldnt figure out my misfire or crappy idle. anyone know where to get ahold of stock 04 577cc injectors? rock auto has 4 of them for 83$ total.Also do you just remove the fuel rail to remove them? advice would be helpfull, thanks
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Old 11-08-2012, 07:07 PM   #2 (permalink)
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bleed all the presure off the fuel rail before you begin via the shrader valve on fuel rail or let car sit for a couple of hrs if it has been started then all you do is unbolt the fuel rail pop out the old injectors then lube the new ones (grease, brake grease) pop the 04 injectors in and prime the fuel system by turning the ingnition key on and off then start car
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Old 11-08-2012, 08:44 PM   #3 (permalink)
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Their here in the classifieds all the time. Like $80 for a set

Or eBay
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Old 11-08-2012, 08:58 PM   #4 (permalink)
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Quote: Originally Posted by Andrew Keele View Post
okay i figured out my problem i think anyways. its had a misfire code and it runs kinda crappy since i bought it from the guy and when i bought it he was like oh it also has 03 injectors for some reason. me not knowing the 03's were 527ccs and the 04s are 577ccs didnt care. then i thought about it when i couldnt figure out my misfire or crappy idle. anyone know where to get ahold of stock 04 577cc injectors? rock auto has 4 of them for 83$ total.Also do you just remove the fuel rail to remove them? advice would be helpfull, thanks

May as well go bigger than 04 527 ccs, well thats what my excuse would be. Oh crap my srt4 has 03 injectors in it, well may as well buy some Deatschwerks 750 cc injectors and a Walbro high flow fuel pump while im at it.
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Old 11-08-2012, 09:39 PM   #5 (permalink)
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Might as well buy duster injector which come with 2 rescales gas/e85. You will just need 3bars and Wally 255 fuel pump..
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Old 11-08-2012, 10:08 PM   #6 (permalink)
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Quote: Originally Posted by Hillbilly81 View Post
bleed all the presure off the fuel rail before you begin via the shrader valve on fuel rail or let car sit for a couple of hrs if it has been started

Thaaaaat is not how you flush the fuel lines in these cars ('04/'05 doesn't even HAVE a Schrader valve) . You pull the fuel pump relay (under hood) and start the car until it dies. Then attempt to start the car a few more times until the lines are empty. Takes 5 minutes TOPS.

OP, have you checked the coilpack/wires/plugs? A misfire can also be caused by a leaking intake manifold gasket.
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Old 11-09-2012, 06:14 AM   #7 (permalink)
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03 injectors shouldnt cause a misfire. It would just lead to positive fuel trims and going lean during wot.
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Old 11-13-2012, 05:25 PM   #8 (permalink)
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I think I'm gonna buy a thermal intake gasket and slap that on and see if not theniI guess new injectors. Anyone know the tq specs for the intake manifold?
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Old 11-13-2012, 05:44 PM   #9 (permalink)
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Intake manifold...204 inch pounds, or 17 ft lbs.
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Old 11-13-2012, 07:14 PM   #10 (permalink)
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also do i have to take the fuel rail off first or can i just take the manifold off with the rail and injectors attatched? and thanks advans
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Old 11-13-2012, 07:20 PM   #11 (permalink)
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You can leave the fuel line attached to the manifold, just unhook the fuel line from the rail.
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Old 11-13-2012, 08:34 PM   #12 (permalink)
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is fuel gonna gush out or anything when i do that? ive never done anything with fuel systems, infact the most ive ever done before i had this car was an alternator or a starter but now this car has forced me to learn how to drop a trans and other junk. i think being a mecahnic is more of a self confidence thing than anything else.
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Old 11-13-2012, 08:38 PM   #13 (permalink)
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A little will come out, but it won't spray everywhere as long as you take the line off slowly.
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Old 11-13-2012, 08:41 PM   #14 (permalink)
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okie dokie thanks man
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Old 11-13-2012, 08:49 PM   #15 (permalink)
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