Lack of power thunderbird sc 1990 - 1990 Ford Thunderbird

SOURCE: Need a service manual for my 1990 Ford Thunderbird SC

You could try faxon.com. They deal in old service manuals. They are manufacturer's service manuals for the dealerships and cost in the range of $50 to $75 each plus shipping.

SOURCE: looking for the location of the cooling fan relay

Should be in the power distrubution box near the battery. Also, there is a fan control module mounted on the right radiator support towards the top engine side

SOURCE: 1990 Ford Thunderbird SC with three trouble codes

CODE 13
Trouble Code 13 indicates that the exhaust stream oxygen content sensor (O2 sensor) is not responding as expected. When cold, the sensor is 'biased' by the ECM to about 450 millivolts. Before it warms to at least 600 deg F (315 deg C) it acts as an open circuit and when the ECM reads it, it reads the 450 mV bias. The ECM expects the sensor to warm in a short period of time and begin sending its own voltages.
http://www.basinger.us/Impreza/04.%20TRANSMISSION/03.%20AUTOMATIC%20TRANSMISSION%20(DIAGNOSTICS)/11.%20List%20of%20Diagnostic%20Trouble%20Code%20(DTC).pdf
The link above is for code 74-77.

SOURCE: i have a 1990 thunderbird sc just rebuilt eng idles rough & misfi

recheck firing order diagram you are using some are incorrect . verify coil and spark plug wires are correctly wired.see link
http://autorepair.about.com/library/firing_orders/bl-fo-9847.htm

SOURCE: 1990 thunderbird sc when you turn the key the car

It just clicks, this indicates problem with battery or problem with starter.If starter is faulty then battery will just give power to starter and click.The engine will not start due to faulty starter.Most likely starter is faulty, but if both battery and starter checked out ok then there are other possibilities too.Click the link below:-- http://technoanswers.blogspot.com/2011/06/1990-thunderbird-sc-when-you-turn-key.html----------------- This should help.Thanks.Helpmech.