87'Tbird,I replaced alt.battery,cables&terminals,runs good,for 30mins.then beeps every 30 secs.then battery is dead.engine dies. Anybody have any ideas? Im stumped! 60.000 oring.miles

50

Asked by Nov 24, 2013 at 12:27 PM about the 1987 Ford Thunderbird Base

Question type: Maintenance & Repair

Ive replaced batt.&alt.3-times.new
belt.

13 Answers

yes, but you did not tend to the connection to the chassis-ground~ as it stands now, you've got a 'semi-conductor' connection there~ wirebrush please~

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Best Answer

..also the cable going to the engine block (near the alternator)~

Best Answer

thanks....you've been magnanimous with your approval(s)~

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Thanx,Judge Roy for the Help. I'll try it. God-Bless

1 of 1 people found this helpful.

You know "brown-outs" happen because the ground is of varying voltages and varying amperages...really tough for a computer to say Yes or No when critical issues are brought forth....though sensors...02 sensor, Manifold Pressure sensor...block temperature sensor~ https://www.google.com/search? biw=1309&bih=670&tbm=shop&sclient=psy- ab&q=1987+Ford+Thunderbird+block+coolant+temperature+sensor&oq= 1987+Ford+Thunderbird+block+coolant+temperature+sensor&gs_l=serp. 12...25757.27242.2.30184.8.8.0.0.0.0.131.830.3j5.8.0.crnk_timecombine d...0...1.1.32.psy-ab..8.0.0.1PkKSzbpa0U&pbx=1

1 of 1 people found this helpful.

not that you need a temperature sensor...but is a critical item for the computer to make important decisions on....and if it has a "semi-conductor" NOT solid steady ground to the battery might make a mistake....throw a Check Engine Light out there....any number of troubles~

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I guess,I forgot to mention,I cleaned all grounds,(wire-brushed),checked for open circuits,none found,no-eng. Lite on.not over-heating,just not keeping a charge.

145

Check for fusible links. Also there was a recall for the alternator wiring harness. Mine caught fire because of this...we were also chasing a dead batt/alt problem during this time

1 of 1 people found this helpful.
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Thanx,Rusty,I'ts the answer i was looking for,makes sense, Do you think,Ford,will hook-me up with a Harness? Or? God-Bless Bro.

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Happy Holiday's to Everyone!!!!!

145

I'm sure you can find it at the Ford dealer shouldn't cost too much

1 of 1 people found this helpful.
50

Im curious,Did you fix,The problem You was having?

145

yes well it was kind of obvious once the car caught on fire and the harness was burned up

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