Electrical question - first time poster

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Sep 24, 2001 | 10:08 PM

Jeep_Hauler

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Joined: Sep 2001

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Electrical question - first time poster

Question to all the electical people. I own a 92 F-350, 7.3l diesel, 5-speed, crew cab, dually. My problem deals with the electrical system, of course. I see it happening whenever I start the engine. The volt meter jumps between, I'm guessing, 12.5 to 14v. It can also be seen in my lights both headlights and dome light, getting brighter and going dim. It usually only lasts until I start driving away. This problem also happens sporatically driving down the road. On a road trip to NE Ohio, with no trailer, cruising around 68 - 70 mph the volt meter would sometimes do the dance between something like 12 to 14 volts. I could get it to stop by reving the engine and it would go away, but 10 to 20 minutes later do it again, and then not again the rest of the trip. I don't know if there is a battery isolater or voltage regulator on the alternator. Any info would help, also this is the first diesel I have owned. It has 270k miles on the truck, but the drivetrain is less than a year old, so I'm hoping for another 250k+ miles of my own. Thanks

Oct 8, 2001 | 11:08 AM

haakeye50

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From: Sherwood Park Canada

Electrical question - first time poster

There is no real problem the glow plug relay goes on and off till the sensor on the engine senses it is warmed up and then it quits cycling on and off. The glow plug relay or glow plugs have a heavy draw on the electrical system which is normal. So that is why the lights dim and brigten and the volt meter jumps around. I hope this helps. Haakeye

HAAKEYE snow fever for sledding but does like his trucks. Ran a 13.049 at 103 mph in my 1970 F100 ( Ground Pownder) 428scj 2/4 4speed. Yahoo messanger (haakeye50)