Just bought 85 thunderbird but it will not start. Not getting gas. may have set
for 10 years. Can't hear any pump sound, but do hear a click at switch in
trunk. This is a v6. No gas was in the gas tank and the owner may have tried
starting it without gas several times. How do we test pump, pump relay? is
there 2 fuel pumps for this car?. If it is the pump should we change fuel
sender and all parts inside the tank since we will have it down?
I owned an 85 T-Bird 3.8 V6 way back when.
Only one fuel pump. It is in the tank with the sender and pickup.
You have to drop the tank to get at the pump.
Check your grounds.
The fuel pump gets its ground circuit via the steel of the fuel tank.
The locking ring holding the pump in place gets rusty, making the ground
circuit marginal at best.
There is also a fuel pump relay near the EEC-IV computer, behind front
passenger kickplate. It gets balky. Also check rollover switch in trunk.
Fuel filter is under the car, passengers side, I think towards the rear
wheel.. I could be wrong, I sold mine in 1995.
The gas tanks rust out from the top, dirt and road salt get trapped up
there between the tank top and the floor of the trunk.
3.8 V have head gasket and cooling problems. C5 automatics tend to wear
out every 100k miles or so. The back lit LCD cluster must be removed to
replace burnt out halogen display lamps, the floor pan is made of really
thin steel. pull back the carpet and check for floor pan cracks and
tears around front seat mount bolts. Good luck.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.