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jason shoda Posted on Nov 14, 2013
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1991Pontiac Firebird 305 would start and run until i put it in gear

New fuel pump , relay, plugs, ect.

1 Answer

James Billet

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  • Expert 272 Answers
  • Posted on Nov 14, 2013
James Billet
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Joined: Jun 24, 2013
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Plz check adjustment on transmission

3 Related Answers

Anonymous

  • 702 Answers
  • Posted on Jun 09, 2008

SOURCE: Fuel System

Yes, it can be bypassed. Find the hot lead to the pump and connect a toggle switch from a power source.

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Anonymous

  • 103 Answers
  • Posted on May 12, 2009

SOURCE: I have a 1991 Firebird V8 305 with TBI. Car was

Check your fuel pump relay

Anonymous

  • 2418 Answers
  • Posted on Apr 09, 2010

SOURCE: how to change fuel filter in 88 firebird 305 5.0

Some of the Camaro/Firbirds had access to the fuel pump in the rear behind the rear pass seats on top of the hump. Some folks have learned to cut their own access in this area due to the amount of work involved in getting the tank out, as it can be a job. So pull the carpet up in the rear to see if yours has this access. If not you ether have to drop the tank or cut your own access, If you cut your own access you will need to make a good cover, you will need 3 brass  compression union fittings 5/16 inch I believe. You have to cut the fuel lines with a hack saw. You do not have room for a tubing cutter, they have to be cut close to each other, but leaving room to get the nuts on the fittings. It can be done this way but first time is very hard to do. Just remember you are playing with a fuel tank, no sparks, no flames, no grinders, no goofs. If done right, next time in is easy, takes about 45 minutes in out with new pump, if pump ever goes bad it can be replaced on the side of the road thru the trunk. 

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Perhaps that is what was wrong with the first pump? The wreck reset device is inertia triggered to forever kill the fuel pump until manually reset or replaced, you MUST find it where ever it is. It might have been damaged electrically by the first pump? You possibly have a computer failsafe in operation preventing you from starting your engine until the RESET device is reset properly?
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