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#86892 12/11/2003 2:33 PM | Joined: Jan 2000 Posts: 51 Member | | Member Joined: Jan 2000 Posts: 51 | Well I/ve got 37 1 1/2 ton all rewired with an excellent new wiring harness-all lights work and horn, fired the truck right up and amp gauge shows charging at high idle, But..... when the truck is running and I turn on the headlights the amp gauge swings wildly back and forth. Does this sound like a cut out problem? Thanks for all your help guys! | | |
#86893 12/11/2003 8:22 PM | Joined: Aug 2003 Posts: 264 Member | | Member Joined: Aug 2003 Posts: 264 | Does the headlight brightness swing with the ammeter swinging? If so, you may have a dirty connection. Or a short in your headlight wiring and the thermal overload protector in the headlight switch may be opening and closing. Or the overload switch itself could be bad. If your headlights have constant brightness while the ammeter swings, then I am at a loss right now to explain the ammeter movement. | | |
#86894 12/12/2003 2:46 AM | Joined: Mar 2001 Posts: 259 Member | | Member Joined: Mar 2001 Posts: 259 | Sounds to me like the low idle speed is not allowing the alternator or generator to charge enough to keep the gauge from dancing around. I would check the alternator/generator output at idle and see what it's putting out. Might have to adjust the points in the regulator.
Joe
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#86895 12/12/2003 8:50 AM | Joined: Feb 2000 Posts: 5,191 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,191 | My 37 amp gauge really jumps around everytime I turn something on. Brake lights, headlights, heater... Mine is just the gauge, the needle is really loose. Even bumps in the road will move it. Joe | | |
#86896 12/12/2003 4:46 PM | Joined: Jan 2000 Posts: 51 Member | | Member Joined: Jan 2000 Posts: 51 | The amp gauge is rock steady with the lights off/ switch on and its crazy...I will get a chance [I hope] his weekend to dig a little deeper into this. Its snowing very hard right now but it looks like we might get a break tomorrow before we get hit again on Sunday. I've got a garage shelter that suppose to arrive next week- then at least I can get out of the wind! Thanks | | |
#86897 12/15/2003 4:54 AM | Joined: Jan 2000 Posts: 51 Member | | Member Joined: Jan 2000 Posts: 51 | I got a chance today before the storm hit [ 12 inches and still coming down!] to take a look at the truck. On Friday I had the battery shop near me make up two 00 gauge battery cables. Today I installed them and ran a good ground strap to the frame, started the truck up and no problem, the amp gauge is now steady! The truck cranks over real good too with good bright lights...Only 5 months before spring! Thanks for all your input guys! | | |
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