scooby2 Posted July 25 Share Posted July 25 The 87 GL has fallen on hard times again. All is well except we can't find an injector pump or a rebuilder for the existing pump. Any help out there? Link to comment Share on other sites More sharing options...
el_freddo Posted July 25 Share Posted July 25 An injector pump? As in an EFI high pressure fuel pump? I know it’s not a diesel so it can’t be the governor pump… If after an EFI fuel pump, use any generic external pump. Can’t recall hose size etc sorry. Cheers Bennie Link to comment Share on other sites More sharing options...
SuspiciousPizza Posted July 25 Share Posted July 25 (edited) Is this a Carb/SPFI/MPFI/Turbo? The different fuel delivery systems use different fuel pumps. (I'm assuming you're talking about a fuel pump, if not then snap a picture of what you're talking about.) If you let us know what it is I can get you a part number to cross-reference online listings. I'm also going to see a parts guy in a few weeks, so I may be able to grab you what you need while I'm there. No promises but it's possible he'll have a spare. :] Edited July 25 by SuspiciousPizza Link to comment Share on other sites More sharing options...
scooby2 Posted July 25 Author Share Posted July 25 Sorry to be unclear. My understanding is that the problem is the failure of the pump that pressurizes the injectors. Fuel pump itself is fine. Link to comment Share on other sites More sharing options...
bushytails Posted July 26 Share Posted July 26 Unless you've had an engine swap to something uncommon, the fuel pump is what pressurizes the injectors. The injectors are electronically controlled valves, that let out a precise amount of fuel when the computer tells them to open and close. The fuel to them is supplied, at pressure, by the fuel pump. The only common exceptions to this are diesels, ancient satanic bosch fuel injection, and ultra-modern direct injection gas engines... 1 Link to comment Share on other sites More sharing options...
SuspiciousPizza Posted 21 hours ago Share Posted 21 hours ago scooby2 have you determined if it is your fuel pump that needs replacing? There is a way to put your ECU into "learn" (improper nomenclature) mode and when you turn the key to ON, the fuel pump will turn on in pulses. You'll be able to hear the pump, if you don't hear any pulsed buzzing then you know the pump isn't functioning. In my opinion this is the easiest way to test your pump as you don't have to remove anything other than some plastic panels below the steering column. If this vehicle is a single-point fuel injected model, fuel pumps are basically extinct. There are multiple forum posts on others using different non-OEM pumps so there's always a way to MacGyver something. :] Link to comment Share on other sites More sharing options...
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