My 86 F150 w/inline 6 needs jumping to start.

10

Asked by Dec 27, 2014 at 01:21 PM about the 1986 Ford F-150 STD Standard Cab SB

Question type: Maintenance & Repair

I have a 86 F150 w/inline 6. I have a problem that started the other day. I had the battery  tested and it is good and I took the alternator to 2 different parts stores and it tests good. It starts if I get a jump or charge the battery.

11 Answers

4,945

It does sound like the battery. Did they use a load tester on the battery?

10

Thanks for the reply. The battery and the alternator was tested. The person at Auto zone told me the alternator was testing bad so I got a jump and went home. On the way home the truck was running just on battery and it almost went dead. I took the alternator off and took it in to have it tested. It tested good. I then took it to Advance and it tested good there too.

10

I'm sorry ytlas. I don't know what the device was called but the clerk brought out a small hand held tester, nothing on wheels and it tested good. I think it is called

4,945

A load tester like I have is rectangular, maybe 4" x 12" and it's hooked to the battery and then a toggle switch is turned. The coils inside the tester get hot because it's putting a load on the battery. If a person uses a multimeter on the battery and it reads 12.5 volts or better, that still doesn't say anything about the cranking amps of the battery. A multimeter is good for checking the alternator. You can put it on the battery when the engine is running and if the meter says 14.5v or better, the alternator is charging. Lot easier than pulling the alternator.

4,945

It's like this http://www.amazon.com/Schumacher-BT-100-Battery-Load-Tester/dp/B000AMBOI0/ref=sr_1_1?ie=UTF8&qid=1419706890&sr=8-1&keywords=battery+load+tester

10

It sounds like he used the load tester and not the multimeter, I know what that is.

4,945

If you have another vehicle, how about taking that battery and sticking it in your truck to see if it fires? That should prove once and for all whether it is or isn't the battery

10

I am now waiting for my friend to come over and put the alternator back in.

1 out of 1 people think this is helpful.
4,945

If you're still having problems, it might be a bad voltage regulator.

1 out of 1 people think this is helpful.
10

I found the problem. A loose connection at alternator. Thanks for the assistance everyone

170

Change your starter the starter can short out and burn alternator and battery both up if it has a solenoid on firewall it very well could be it but I personally would start with the starter

Your Answer

Add photo

Related Questions

F-150

Looking for a Used F-150 in your area?

CarGurus has 207,752 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,720
#2 dandyoun
dandyoun
Reputation 4,140
#3 tennisshoes
tennisshoes
Reputation 2,470
View All

Related Models For Sale

Used Ford F-250
559 listings starting at $1,342
Used Ford Mustang
533 Great Deals out of 42,736 listings starting at $1,699
Used Ford Ranger
196 Great Deals out of 6,752 listings starting at $1,595
Used Jeep Wrangler
509 Great Deals out of 18,410 listings starting at $2,500

Used Cars For Sale

2017 Ford F-150 For Sale
5 Great Deals out of 83,301 listings starting at $17,710
2016 Ford F-150 For Sale
183 Great Deals out of 56,027 listings starting at $4,922
2015 Ford F-150 For Sale
213 Great Deals out of 7,513 listings starting at $18,296
2014 Ford F-150 For Sale
483 Great Deals out of 11,455 listings starting at $11,479
2013 Ford F-150 For Sale
655 Great Deals out of 13,982 listings starting at $8,450