Re: Re: Fuel Pump Problem
i am also having the same problem with my 89 thunderbird. at first it started jerking like i wanted to cut off then ran ok for an hour or so, then it just died. replaced the fuel pump before checking anything, put it all together and still nothing. i get a click sound from the relays but no hum from the pump. i reversed the 2 relay on the firewall and still nothing. check the connection to the relay and had 12 volts and the intera switch in the truck had 9 volts but no power to the pump, now heres the kicker. i plug up my scan tool to the car, the pump works fine and the car will run fine but as soon as i unplug the scanner, the car dies and the pmc starts beeping under the dash. scan tool didnt give any code neither.
anyone dare to tackle this one?
if any, thanks for the help.
broken down and frustrated.
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