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Ammeter Pegged...Burning Electrical Smell #1205001
03/28/12 08:42 AM
03/28/12 08:42 AM
Joined: Sep 2007
Posts: 101
SE PA
MattMPA Offline OP
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MattMPA  Offline OP
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SE PA
Hi guys...a friend of mine has a 1977 Dodge window van that's used for business. It's got all original paint and is in amazing shape.

He mentioned to me yesterday that the ammeter pegs at anything above idle speed and that he smells a burning electrical smell too. (The hi-beams also cause some of malfunction..but I don;t know the details on that)

Anyhow...I remember reading many years ago that there was some issue that caused this type of problem in the older Mopar gauge clusters but I can't seem to find anything on this. Perhaps a regulator on the cluster?

Thanks for any help!

Re: Ammeter Pegged...Burning Electrical Smell [Re: MattMPA] #1205002
03/28/12 08:51 AM
03/28/12 08:51 AM
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Missouri
68KillerBee Offline
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Missouri

Re: Ammeter Pegged...Burning Electrical Smell [Re: 68KillerBee] #1205003
03/28/12 09:00 AM
03/28/12 09:00 AM
Joined: Sep 2007
Posts: 101
SE PA
MattMPA Offline OP
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MattMPA  Offline OP
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SE PA
Thank you!!! That is what I was thinking of....jsut couldn;t remember the details.

Re: Ammeter Pegged...Burning Electrical Smell [Re: MattMPA] #1205004
03/28/12 04:13 PM
03/28/12 04:13 PM
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Posts: 3,519
Lansing, MI
70gtx440dana Offline
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70gtx440dana  Offline
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Lansing, MI
Quote:

Hi guys...a friend of mine has a 1977 Dodge window van that's used for business. It's got all original paint and is in amazing shape.

He mentioned to me yesterday that the ammeter pegs at anything above idle speed and that he smells a burning electrical smell too. (The hi-beams also cause some of malfunction..but I don;t know the details on that)

Anyhow...I remember reading many years ago that there was some issue that caused this type of problem in the older Mopar gauge clusters but I can't seem to find anything on this. Perhaps a regulator on the cluster?

Thanks for any help!




Tell him sto stop driving it immediately!! He should find the problem and fix it. If it is the typical Mopar ammeter wiring issue it can cause a significant fire . I found out the hard way on my 70 Road Runner when the entire dash harness shorted out. Thank goodness the car did not catch fire.


70 Road Runner 383-4 4 speed FJ5 & black guts
70 Charger R/T 440-4 4 speed FJ5 & white guts
Re: Ammeter Pegged...Burning Electrical Smell [Re: 70gtx440dana] #1205005
03/28/12 04:22 PM
03/28/12 04:22 PM
Joined: Nov 2004
Posts: 9,312
SoCal
68HemiB Offline
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What he said.

Yes, running all the load through the ammeter was a less than clever design, and the suggested bypass is seen by most as a good idea.

HOWEVER, the pegged ammeter at hand is an indication that something else is very wrong. This must be addressed immediately!


Down to just a blue car now.
Re: Ammeter Pegged...Burning Electrical Smell [Re: 68HemiB] #1205006
03/28/12 04:37 PM
03/28/12 04:37 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
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Posts: 36,040
Lincoln Nebraska
bad voltage reg EDIT pull the triangle VR connector ASAP so it ain't charging. It is far better to deep cycle (run it down then charge it up) the battery a time or 2 till you solve it rather than having the system full fielded like it is now, as said very dangerous

Last edited by RapidRobert; 03/28/12 09:53 PM.
Re: Ammeter Pegged...Burning Electrical Smell [Re: RapidRobert] #1205007
03/28/12 10:58 PM
03/28/12 10:58 PM
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Balt. Md
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383man Offline
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Balt. Md
First thing to do is find the problem for overcharging and fix it. Ron

Last edited by 383man; 03/28/12 10:58 PM.
Re: Ammeter Pegged...Burning Electrical Smell [Re: 383man] #1205008
03/29/12 02:56 AM
03/29/12 02:56 AM
Joined: Jul 2003
Posts: 6,167
Maryland
GO_Fish Offline
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Maryland
If he's fortunate enough to avoid a fire, he will still have a mess on his hands if the battery starts spewing acid everywhere from overcharging.


Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph
Re: Ammeter Pegged...Burning Electrical Smell [Re: GO_Fish] #1205009
03/29/12 07:39 AM
03/29/12 07:39 AM
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Birmingham, England
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Mick70RR Offline
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Birmingham, England
This happened to me on Monday driving to work. The voltage regulator had burned out. Picked up another reg and was back on the road a few hours later.


1970 Road Runner 505 cid MCH CNC ported Stealth heads MP 528 camshaft 4 speed GV overdrive 11.98 @ 117 on street treads
Re: Ammeter Pegged...Burning Electrical Smell [Re: Mick70RR] #1205010
04/03/12 11:29 PM
04/03/12 11:29 PM
Joined: Sep 2007
Posts: 101
SE PA
MattMPA Offline OP
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MattMPA  Offline OP
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SE PA
Well guys, I stopped at my friend's today...and put in a new voltage regulator. Gauge reading correctly now. We'll look into bypassing the gauge soon.

So, I'm told today that the hi-beams don't work. The blue light works on the dash...but both hi-beams do not work. I'm guessing there's a relay that gave up somewhere.

Re: Ammeter Pegged...Burning Electrical Smell [Re: MattMPA] #1205011
04/03/12 11:34 PM
04/03/12 11:34 PM
Joined: Jan 2003
Posts: 683
CENTRAL MINN
1965_PLYMOUTH Offline
mopar
1965_PLYMOUTH  Offline
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Posts: 683
CENTRAL MINN
my guess would be the high beams are both burned out. or the dimmer switch crapped out, but I don't think the blue dash light would come on either then.







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