Question about Ford Thunderbird
1979 ford thunderbird when i turn the key to on the oil light, alt light don't come on how do i check this out?
First things first my friend. You must test the gage to be sure it is good. Normal procedure is: Switch off, unplug the wires from the sending unit at tank, connect jumper between the power wire and ground wire in the connector block, go to the switch and turn it to run position. If the needle goes to full, the gage is good. Turn the switch off. Now, be sure the connection is plugged in completely and you've a GOOD ground on the sending unit tab on the top of sending unit. No ground, no working needle. Use the test light to find if there's continuity with ground tab using power wire and touch the ground. No light, work with it till you do. Clean stuff to make the ground on tab work. Once test light does light between power and ground tab, your good. Gage should definitely be working now. If it doesn't work, this calls for replacing the sending unit in tank by dropping the tank first. Then it's easy to replace the sending unit.
Posted on Jul 20, 2017
Sounds like the circuit board behind the dash. They will short out over time. As far as ignition switch:put key in use a paper clip or equivalent to put in the small hole turn switch. Sould pull right out.
Posted on Aug 22, 2017
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