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Where do i find the ground wire - 2500 Chevrolet Cars & Trucks

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What are you trying to ground? If electronics, Any bolt attached to the frame of the car can be used as a ground. You can attach a closed loop metal contact to the wire and attach the bolt for a ground. Extra info, bolts that hold down your seats, firewall bolts and seat belt bolts are some common grounds.

Best Wishes and Good Luck!!

Posted on Apr 10, 2011


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I have a 1998 f150 all the lights hazards brake lights work but the turn signals don't also if my turn signal is in left or right position an I hit the brake tail lights go out need help thanks

Some of it sounds like a ground problem. The ground wire color for the rear lamps is black. One way to check a ground is to use a testlite connected to battery voltage, touch ground wire terminal or bare wire, if the lite comes on, the ground is good enough to turn on testlite. Ground will take the path of least resistance, It may be trying to ground through the circuit of another lamp. It can cause some weird problems.
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This is usually due to a bad ground wire (open circuit) creating a feed back voltage, or a short between the power and ground wire.

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1 Answer

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Probably a ground wire. A lot of automotive electrical problems are due to dirty ground wires due to the fact that the ground wires are exposed. Find where it grounds, remove the ground wire. Mix a lot of baking soda in water, keep it mixing. Dip the wire into the solution until it stops bubbling. Remove and dry wire. Then get the solution mixing again and poor it over the spot the wire connects to. Dry it. Reconnect ground. That will most likely fix the problem. Not sure where the ground is, probably have to trace it back. Unless you have the tech specs on the car. That should tell you where it is.

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Where does the blue an white wire go on the alternator an what does it do

an alternator has a power out wire a smaller power in wire to excite the field, a ground wire for the field and a large ground wire. Most ground wires are brown. And most power wires are red. You check check the wire for ground and power with and ohm/volt meter. Put the voltmeter on volts and connect the black wire from the meter to ground and the red to the wire, turn on the key and if you have volts it is a power wire. If no volts the turn the key off, select ohms and attach the black meter wire to ground (such as the frame or any metal) then attach the red wire to your blue/white wire if you show 0 ohms or low ohms then it is a ground.

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If I understand right, I would say the normal ground for the pump is bad.
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Front blower short power to ground causing 12+ volts on both power and ground wires , connecting ground wire to ground blows HVAC 40amp fuse, connecting fan power wire to ground runs fan at high speed if...

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1 Answer

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If you have a lot of miles on your car, use a 5-40 synthetic oil, this will help oil comsumption.

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