Exhaust ground wire questions?
11-10-02, 12:47 PM
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Exhaust ground wire questions?
I noticed the other day that when the muffler shop did my Cat back that they did not hook my exhaust ground wire back up .. on the rear driver side section of the car. I have not noticed any ill effects of this so far ... what does this ground do?
I was also wondering, I don't have a welder ... do you think I could solder that wire on to my rear pipe? or do you think i would just melt do to the heat? It's way back in the rear .. but I'm not sure how hot the pipes get back there.
Thx for the info,
Robert
I was also wondering, I don't have a welder ... do you think I could solder that wire on to my rear pipe? or do you think i would just melt do to the heat? It's way back in the rear .. but I'm not sure how hot the pipes get back there.
Thx for the info,
Robert
11-10-02, 02:58 PM
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Originally posted by nashman69g
just FYI here...not tring to attack anyone here!
the exaust was probably braised together...muffler shops prefer braising because its easier and faster...just need a torch and some braising rods and your set!!
just FYI here...not tring to attack anyone here!
the exaust was probably braised together...muffler shops prefer braising because its easier and faster...just need a torch and some braising rods and your set!!
11-10-02, 03:04 PM
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Originally posted by nashman69g
like i said just FYI...FOR YOUR INFORMATION !!!!!!!!!!!
like i said just FYI...FOR YOUR INFORMATION !!!!!!!!!!!
I was not sure if braising had somthing to do with why they did not hook my ground back up ... I don't even know what braising is (now I do
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11-10-02, 03:55 PM
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Every exhaust shop I have ever been to has welded instead of brazed. Where are you getting this information from?
The ground wire is mostly to help prevent the exhaust from rusting due to electrolosys. It's not that critical and I'd imagine that 90% of the cars here have it missing.
The ground wire is mostly to help prevent the exhaust from rusting due to electrolosys. It's not that critical and I'd imagine that 90% of the cars here have it missing.
11-10-02, 04:51 PM
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Originally posted by bingoboy
hmm would solder stand up to exhaust temperatures? i wouldn't think so.
hmm would solder stand up to exhaust temperatures? i wouldn't think so.
I did read a post a while back where someone was having idle & hesitation issues ... and he said his exhaust ground being re-wired fixed the problem. So I think it does more than prevent rust .. I will seach for that post.
EDIT: Hmm too many posts comming up in the search .. But if I recall the guy who thought that was his problem thought it had somthign to do with helping the O2 sensor get a good ground. But I don't know how a O2 sensor could affect his idle ???
my consensis; it's there for a reason .. it cant do anything negative; keep it.
Last edited by Rpeck; 11-10-02 at 04:59 PM.
11-11-02, 06:10 AM
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It is an exhaust ground.
It helps ground the exhaust system - this MIGHT help the ground of the O2 sensor.  The O2 sensor grounds through its housing.  The ground also minimizes rust on the exhaust system.  This is why the sunroof and hatch frame tends to rust faster than the rest of the car - they are "floating" and cannot ground with the rest of the car.
-Ted
It helps ground the exhaust system - this MIGHT help the ground of the O2 sensor.  The O2 sensor grounds through its housing.  The ground also minimizes rust on the exhaust system.  This is why the sunroof and hatch frame tends to rust faster than the rest of the car - they are "floating" and cannot ground with the rest of the car.
-Ted
11-11-02, 07:39 AM
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Originally posted by RETed
This is why the sunroof and hatch frame tends to rust faster than the rest of the car - they are "floating" and cannot ground with the rest of the car.
-Ted
This is why the sunroof and hatch frame tends to rust faster than the rest of the car - they are "floating" and cannot ground with the rest of the car.
-Ted
11-13-02, 08:23 PM
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Originally posted by jeremy
the hatch frame is bolted on and has metal shocks holding it up. how much ground would it need? i am thinking of the same thing here aren't i?
the hatch frame is bolted on and has metal shocks holding it up. how much ground would it need? i am thinking of the same thing here aren't i?
The problem with the hatch is that it's painted before installed.  The bolts do make some contact, but it's not a very good *metal* contact.
-Ted
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