Chevy with wiring issues

Denton Felske · 2004-11-16T11:23:06+00:00

Hey guy I was just wondering if anyone else cam e acrross this problem...........I have a 84 chevy 4x4 all done up mechanically..........msd ignition ......big stereo.........everything else stockthe issue at hand is the battery goes dead over nite....thus I did a draw test.which is putting a test light from the ground terminal of the battery to the graound cable in sereis.....and if the light is on then there is a drwa......what I have done to try to find it......unhook stereo.............nothing changedunhook msd........nothingtook all the fuses out......nothingtook the brake control out..........nothingunpluged the colum....nothingun hook alt .........nothingunhook unhook hearter motor..nuthingunhook wiper motor..nothing..........I am thinking it is in the cluster or the ignition switch........they are nextjust wondering if anyone else has had this issue.........thanks

Nov 16, 2004 42 Replies

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Refinish_King1 21 years ago

Better yet:

The delayed interior lights have an inline diode, which might have burned to a direct conductor.

A perfect example: Older Dodge and Mopar vans, when you opened the tail gate. The front interior lamps stayed off, when the diode burned, the front interior lamps lit.

Somewhere in your circuit, you have a diode that burned, and allows pass-through and allows the lamp to stay lit.

D-C circuits go up in current when a ground is loose only when there is a wound coil; i.e. fan motor, amplifier, charged sub woofer capacitor.

Refinish King

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TranSurgeon 21 years ago

you want weird ?

early 90's Mercury Tracer

no upshift (ECM-controlled unit, F4EAT)

trouble was both back-up lamps burned out + a poor tail lamp assembly ground

with the lamps out, there was enough voltage feeding back into the reverse lamp circuit that the ECM, which uses voltage on the back-up lamp wire to detect forward/reverse, decided the car was in R, even though it was going forward (speed sensor doesn't care)

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Refinish_King1 21 years ago

You would have to admit though:

It was a Ferd?

GM has the smarts to use the P/N switch and the speed sensor.

LOL, Damn them Ferds. But if it weren't for Ferds, I think my bays would be empty?

Refinish King

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