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

60

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

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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

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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

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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

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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.
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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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