Question about Ford Thunderbird

1 Answer

I have a '72 T-Bird 429 in a 1 ton Ford truck ('73). I need an electrical diagram because the engine will not turn over - electronic ignition OK, distributer OK, battery OK with power to firewall solenoid. Could it be the ignition switch?

Posted by on

  • elski1943 Jul 16, 2010

    Thise were the only two things I thought might be the problem. I just needed to know how to test them. If neither of them are defective I will be writing back.
    Thank you.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,796 Answers


It sounds like the ignition system is not sending the signal to the starter selenoid or the selenoid is defective..


1.- Try jumping the selenoid's two terminals to make sure the starter gets juice.

2.- Apply 12v to the S terminal in the selenoid, it should engage the starter, if not, replace selenoid, if starter engages, perform next test.

3.- Use a Voltmeter set on DC, place black end on the battery's (-) post and with the red lead, check starter selenoid, one terminal should always have 12v or more and the other one should have the 12v only when the key is on the RUN position. if test fails,the wiring or the ignition switch are defective.

NOTE: The selenoid needs to be grounded to the chasis by the fastening screws, check for clean tight connection.

If you still need wiring diagram of the starting system, let me know.

Good Luck!!

Posted on Jul 15, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2004 Ford Explorer 4 wheel drive wrench light on dash no power to ignition how do I fix

Find yourself a electrical distribution diagram an see where the B+ voltage to the ignition comes from . An you need to be a little more specific ! Ignition system or ignition switch .
Free wiring diagrams here
Enter vehicle info. year , make , model an engine size . Under system click on electrical distribution ,then under subsystem click on power distribution . Click the search button then the blue link's one at a time .
Do you know what electronic throttle control is ?
It should be noted that the ETC system includes a wrench light on the instrument cluster that illuminates when a fault is detected. Faults are also accompanied by DTCS and the "Check Engine Soon" light.
Your best bet mite be to take it to a qualified repair shop.

Sep 28, 2017 | Ford Cars & Trucks

1 Answer

Need wiring diagram for 67-75 Chevy c-10 truck

your request is for two generations of c-10 - 67 -- 72 are as follows
Yahoo Image Search Results Page 67 72 Chevy Wiring Diagram and these are 73 - 87 courtesy of 73-87chevy trucks,com
Complete 73 87 Wiring Diagrams

Dec 25, 2016 | Cars & Trucks

1 Answer

Ford t bird starts for a few seconds but acts as if it looses ignition is there a start run relay on this model?

With ours, the engine began to run several kinds of poorly around 45,000 miles - lots of misfire, low power, faltering under load, and so on. After getting tons of suggestions and a couple failed "sure fixes" from my otherwise trusted mechanic, I changed out the spark plugs, spark coils, and boots, based on my own research. Since then it has run wonderfully!

Apr 04, 2013 | 2002 Ford Thunderbird

2 Answers

What is the timing specs for a 1968 ford thunderbird

The timing specifications for that vehicle with all V-8 engines 302, 390, 428, 429 are the same.

Spark Plug Type: BF32

Spark Plug Gap: .034 In. - .035 In.

Ignition Point Dwell Angle: 27 Degrees

Ignition Point Gap: .021 In.

Ignition Timing: 6 Degrees Before Top Dead Center

Engine Compression: 150 Psi.

Engine Idle Speed:

302-390-428 Engines: 625 Rpm M/T or 550 Rpm A/T

390 GT Engine: 700 Rpm M/T or 550 Rpm A/T

429 Engine: 550 Rpm M/T or A/T


Oct 16, 2010 | Ford Thunderbird Cars & Trucks

1 Answer

What is the right way to hook up the electrical part of a starter in a ford 429 engine.there are several possible places to hook up electrical. is it just the main negative lead., or are there other leads...

There should only be one starter cable running to the starter motor from the starter solenoid, here is a diagram to help assist you and let me know if you require any further assistance.


Jul 24, 2010 | Ford Thunderbird Cars & Trucks

1 Answer

I have a 73 ford 1.6 industrial motor. need electronic distributo

Look on E-bay for an electronic CD unit that fires from the original points, but generates about 400 volts to fire the standard coil. My guess is that there is no all-electronic ignition system available even as a racing option. Ford used this engine in the Pinto line of cars from`'71 to `73, and all of them used points and condenser distributors. The points and condenser units work fine if in good order and the point gap set at .025". Hope this gives you an assist!

Jan 16, 2010 | 1998 Ford Escort

1 Answer

Basic wiring for 429 engine

You will need to get some kind of ignition system first. I would recommend getting an MSD. It will come with wiring instructions, and it will be all you need to run the motor.

Aug 13, 2009 | 1983 Ford F 350

2 Answers

Ford 1995 F150 Truck. Turn ignition key off but Truck still runs

ignition switch electrical portoin above brake pedal on steering column


Apr 14, 2009 | 2004 Ford F150

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

25 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

82322 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22382 Answers

gerry bissi

Level 3 Expert

4382 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides