Can't jump start car. Welded metal to strut bolt? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

cat94 · 04-11-2020, 07:36 PM

Hi,

I just tried jumping my '17 with a dead, original battery. When I attached the last point (negative on dead car's strut nut), there were sparks and the cable got hot so I disconnected everything.

It looks like theres some metal welded to the strut bolt... does anyone know what's going on? I've never had trouble jump starting a car before.

ybotspawn · 04-11-2020, 07:41 PM

I think some pictures would be nice. I’m just more curious why this goes in the tsb, warranty, and recall section?

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cat94 · 04-11-2020, 07:56 PM

Quote:

Originally Posted by ybotspawn

I think some pictures would be nice. I’m just more curious why this goes in the tsb, warranty, and recall section?

Sent from my iPhone using Tapatalk

Not sure how to move, but I thought this was also a general issues section

I attached a picture of the strut bolt. Also want to add that I'm using a 6 gauge cable.

humfrz · 04-11-2020, 08:32 PM

Quote:

Originally Posted by cat94

Hi,

I just tried jumping my '17 with a dead, original battery. When I attached the last point (negative on dead car's strut nut), there were sparks and the cable got hot so I disconnected everything.

It looks like theres some metal welded to the strut bolt... does anyone know what's going on? I've never had trouble jump starting a car before.

Well, let's see - + to + , - to - , make your last connection on the jump-or car.

Back in the day (not that anybody gives a shit) not ALL cars were negative ground - which led to several blown up batteries -

humfrz · 04-11-2020, 08:38 PM

Quote:

Originally Posted by cat94

Not sure how to move, but I thought this was also a general issues section

I attached a picture of the strut bolt. Also want to add that I'm using a 6 gauge cable.

Pay ol @ybotspawn no never mind, he must have missed his nap today -

ybotspawn · 04-11-2020, 08:40 PM

Quote:

Originally Posted by humfrz

Pay ol @ybotspawn no never mind, he must have missed his nap today -

Now that humfrz is here we can REALLY get this thread off track!

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cat94 · 04-11-2020, 08:42 PM

Quote:

Originally Posted by humfrz

Well, let's see - + to + , - to - , make your last connection on the jump-or car.

Back in the day (not that anybody gives a shit) not ALL cars were negative ground - which led to several blown up batteries -

That's unfortunate..

Oh, and the metal that was welded onto the strut bolt was caused by the jumper cable. There's enough extra material on there now that the nut definitely will not come off without some filing.

Tcoat · 04-11-2020, 09:08 PM

I know you said you did it right but are you 100% sure you had the cables hooked up right? That looks a lot like the results of positive cable straight to ground.

soundman98 · 04-11-2020, 09:27 PM

yep, looks like a battery welder setup...

cat94 · 04-11-2020, 09:33 PM

Quote:

Originally Posted by Tcoat

I know you said you did it right but are you 100% sure you had the cables hooked up right? That looks a lot like the results of positive cable straight to ground.

I want to say yes, but I'm human so maybe I did get it wrong twice in a row

Hope I didn't break anything

Tcoat · 04-11-2020, 10:17 PM

Quote:

Originally Posted by cat94

I want to say yes, but I'm human so maybe I did get it wrong twice in a row

Hope I didn't break anything

If the car you were trying to boost with is still running all is good.

cat94 · 04-11-2020, 11:21 PM

Tried again with a different car (where I knew for sure + was positive

) and there was no unintentional welding...

Now I feel dumb.. but how did I get it wrong twice??

Tcoat · 04-11-2020, 11:30 PM

Quote:

Originally Posted by cat94

Tried again with a different car (where I knew for sure + was positive

) and there was no unintentional welding...

Now I feel dumb.. but how did I get it wrong twice??

If you knew how you got it wrong you wouldn't have got it wrong.

I did it once and blew the charging battery up all you got was a little arc weld so you have that going for you.

humfrz · 04-11-2020, 11:31 PM

Quote:

Originally Posted by cat94

Tried again with a different car (where I knew for sure + was positive

) and there was no unintentional welding...

Now I feel dumb.. but how did I get it wrong twice??

I find it easy, I do it all the time - just ask mrs humfrz -

04-11-2020, 07:36 PM	#1
cat94 Senior Member Join Date: Nov 2016 Drives: '17 86 Location: CA Posts: 198 Thanks: 91 Thanked 46 Times in 34 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Can't jump start car. Welded metal to strut bolt? Hi, I just tried jumping my '17 with a dead, original battery. When I attached the last point (negative on dead car's strut nut), there were sparks and the cable got hot so I disconnected everything. It looks like theres some metal welded to the strut bolt... does anyone know what's going on? I've never had trouble jump starting a car before.

04-11-2020, 09:08 PM	#8
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,283 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	I know you said you did it right but are you 100% sure you had the cables hooked up right? That looks a lot like the results of positive cable straight to ground. __________________ Racecar spelled backwards is Racecar, because Racecar.

04-11-2020, 09:27 PM	#9
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,673 Times in 6,781 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	yep, looks like a battery welder setup... __________________ "The time you enjoy wasting is not wasted time"

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04-11-2020, 11:21 PM	#12
cat94 Senior Member Join Date: Nov 2016 Drives: '17 86 Location: CA Posts: 198 Thanks: 91 Thanked 46 Times in 34 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Tried again with a different car (where I knew for sure + was positive ) and there was no unintentional welding... Now I feel dumb.. but how did I get it wrong twice??

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