Fuel Injector blow out...!!!
Melting Slicks
Joined: Apr 2002
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From: St. Charles, MO Route 66 Corvette Club
Re: Fuel Injector blow out...!!! (Ras119)
Ras119: Now I have slept some since my injector change-out in November. The drivers side is the most difficult one to get off...while the runners are on the intake manifold. I had to get a Bud Lite to help me get it off! On the EGR valve, I would do an inspection and clean out the "dirty" part with Gum Out or such. Do not get this in the vaccum valve and put in a new gasket. If it looks good and will hold a vacuum (suck on it), use it!
Safety Car
Joined: May 2003
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From: Vette-hid.com Lost in DFW texas
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St. Jude Donor '06-'07
Re: Fuel Injector blow out...!!! (Sam Lam)
i have a few extra injectors from my ford motorsport swap thier stock 89 corvette injectors email me
Drifting
Joined: May 1999
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From: Sacramento, CA Money can't buy happiness - but it's more comfortable to cry in a Corvette than a Yugo.
Re: Fuel Injector blow out...!!! (Ras119)
Ras119,
It is possible to pull the fuel rail up enough to get the injectors out and back in, but you don't want to do that. It is real easy to distort the o-rings or not get the injectors in correctly that way. Plus, sometimes the old injectors stick a bit, which will make them a pain to get out unless you have lots of room. You will save time and a LOT of frustration pulling the fuel rail. It can all be done in one day so I recommend you take your time and do it right.
As already mentioned, get new fuel line o-rings. They are really cheap compared to an underhood leak or fire.
If you decide to replace the EGR valve get a new stock GM unit. All of the aftermarket units deviate from the stock one somewhat and the difference in price is only a couple of dollars. My brother's aftermarket 89 replacement required a slight hose routing change to work correctly. When I replaced my injectors I checked every aftermarket dealer in town and while they all had a unit to "fit" my 88, none was an exact match at the base and hose connection. For about $9 more than the aftermarket units the genuine GM unit was a perfect match with no time lost making it fit. The EGR gasket should be in the box with the stock unit (you should check for it before you leave the dealer or ask the parts guy you're ordering it from to check). Don't let them sell you a gasket you don't need, but don't forget the gasket.
We installed Accel 24# injectors in my 88 and my brother's 89 and have had no problems in over 2 years. I wouldn't be afraid to use Accel injectors again, but given a choice at about the same price, I'd choose the Ford Motorsport units first.
Be sure to have a fire extinguisher close by at all times. When done, pressurize the system and give it a minute or to to show any leaks before you start the car. Keep the hood open and fire it up. It will idle a little rough at first since the new injectors are larger than the ECM 's base programming is setup for. Once you are sure of no fuel leaks, close the hood and take it out for a drive. The ECM will "learn" the adjustments needed for the new injectors and in short order you will have an amazingly smooth engine. Well worth the effort. Do it right and you only have to do it once.
It is possible to pull the fuel rail up enough to get the injectors out and back in, but you don't want to do that. It is real easy to distort the o-rings or not get the injectors in correctly that way. Plus, sometimes the old injectors stick a bit, which will make them a pain to get out unless you have lots of room. You will save time and a LOT of frustration pulling the fuel rail. It can all be done in one day so I recommend you take your time and do it right.
As already mentioned, get new fuel line o-rings. They are really cheap compared to an underhood leak or fire.
If you decide to replace the EGR valve get a new stock GM unit. All of the aftermarket units deviate from the stock one somewhat and the difference in price is only a couple of dollars. My brother's aftermarket 89 replacement required a slight hose routing change to work correctly. When I replaced my injectors I checked every aftermarket dealer in town and while they all had a unit to "fit" my 88, none was an exact match at the base and hose connection. For about $9 more than the aftermarket units the genuine GM unit was a perfect match with no time lost making it fit. The EGR gasket should be in the box with the stock unit (you should check for it before you leave the dealer or ask the parts guy you're ordering it from to check). Don't let them sell you a gasket you don't need, but don't forget the gasket.
We installed Accel 24# injectors in my 88 and my brother's 89 and have had no problems in over 2 years. I wouldn't be afraid to use Accel injectors again, but given a choice at about the same price, I'd choose the Ford Motorsport units first.
Be sure to have a fire extinguisher close by at all times. When done, pressurize the system and give it a minute or to to show any leaks before you start the car. Keep the hood open and fire it up. It will idle a little rough at first since the new injectors are larger than the ECM 's base programming is setup for. Once you are sure of no fuel leaks, close the hood and take it out for a drive. The ECM will "learn" the adjustments needed for the new injectors and in short order you will have an amazingly smooth engine. Well worth the effort. Do it right and you only have to do it once.
Advanced
Joined: May 2003
Posts: 60
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Re: Fuel Injector blow out...!!! (Ras119)
Ras,
IM me if you want my injectors from my '90 L98. I just replaced them all, they all read right at 16 ohms. One of them is a replacement I bought from Autozone about two years ago - at least that one should be good for a while.
Later,
Bill
IM me if you want my injectors from my '90 L98. I just replaced them all, they all read right at 16 ohms. One of them is a replacement I bought from Autozone about two years ago - at least that one should be good for a while.
Later,
Bill
