read many discussions on this have electric pump in tank on 87 305 carbed engine want advise. if pump is not working will it starve engine on flow? i understand its helper pump only for vapor lock comes on momentarly on start up , if inoperitive will it reduce volume to mechanical pump? is it possible to remove tank without removing rearend on 87 firebird? if i do can i take electric pump out of system[ will ecm prevent starting with out complete circuit] and use only mechanical pump as older pontiacs were? is oil pressure switch a issue as far as inoperitive electric pump i keep getting air in acelerator shot bowl does not drain down do to well plugs seems like problem in tank pickup stainer or pump restriction ? just reading many threads that replacing pump was not the issue????tested fuel larger suction line at mechanical pump zero flow when keys on , removed small return line from mechanical pump pressurized volume coming from tank fill pump and carb up !confused???? any help would b greatly appreceated thanx!

 

I haven't tried it, but I understand you can drop the tank without completely removing the rear end.

Personally, I'd put a good replacement pump in while I was at it. But, removing it won't cause any direct problems. It will be more prone to vapor lock, but less prone than it would be with a non-operating electric still in there.

 

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