2006 Hummer H3
Hey Mr.Scott i have a hummer h3 that has been sitting over the years an i got this problem of it idling off with a battery light. after driving it for a few minutes but cranks back up right after i put it in park. Everything i tested with charging system is great. But i do think i have damaged wires from water getting in from roof but is that the problem? Or is it just condensation in gas tank and a need to flush engine oil and add new?
2006 Hummer H3
Hey Mr.Scott i have a hummer h3 that has been sitting over the years an i got this problem of it idling off with a battery light. after driving it for a few minutes but cranks back up right after i put it in park. Everything i tested with charging system is great. But i do think i have damaged wires from water getting in from roof but is that the problem? Or is it just condensation in gas tank and a need to flush engine oil and add new?
The engine wouldn't start if it were due to that much condensation -gasoline floats on water. It wouldn't start at all if that were the case. What did you use to perform the test? You need to have around 14 to 14.7 volts when the alternator is charging the battery, and the battery is deeply discharged. You can get a baseline read with a multimeter set to voltage DC and put the positive and negative terminals between the positive and negative leads. If the battery's not being charged, the battery light will be on. Anything less than 12.7 volts means the battery is being discharged when the engine is running. The battery light illuminates when either the battery or alternator isn't charging properly. You say the battery starts the H3, so that would indicate to me that the alternator is bad. Check the battery terminals themselves. Corrosion will affect your readings, clean them if they're corroded.
Thank you for the reply yeah cause the battery is brand brand new like just bought two days before i posted this. But definitely shows normal charging but the lowest i seen it drop while charging is like 13.99 and cleaned up the terminal connections so that’s fine an no corrosion on the wire end themselves. Ill bring it to autozone n have them check the alternator an see if it passes.
idling off with a battery light.
battery light indicates a problem with charging system (as stated in the manual). Get your battery+alternator load tested.
Had autozone check it and all they said was faulty starter but i wouldnt think a starter would be killing the engine.
And i also switched out all 3 sensors the truck threw out which was for the camshaft sensors and crankshaft. So i didnt see the difference it still shut off after driving around the neighorhood after awhile but when i turned the wheel too hard one way the electrical actually surged like i pinched a wire or something odd??
sounds like you have some wiring faults
Will that be expensive fix?
If you have to pay a mechanic to do it, most likely.
it takes a lot of time to locate them and very few grease monkeys know how to read schematics
Where to find schematics)