Be it a lazy oil pressure gauge or an inoperative fuel level gauge, the main theory of operation is the same for most gauges. These are the steps I went through to run the motor shown to the right. I wonder if it was more common for fastbacks to route down the driver's side? Study these two websites in detail to see how the harness and sensors work. It's often hard to figure out which wire is the problem and then can be even more difficult to replace it. Sorry I meant that there are three wires going to each gauge, on the wiring diagram that is supplied with the kit. Each connector was inspected for cracks, burns, dirt, or wear and replaced if needed.
Could not find it in my wiring diagramm booklet. Don't forget that the voltage provided to the gauges is circuit protected as well. Simple wire and so much questions, sorry. One for positive connection, ground connection, and then the sender connection. Using this diagram allows you do establish a power distribution which reduces the number of power connections to the rest of the vehicle. This location clears the defroster ducts as well as all existing wiring. If no one can confirm, I'll check my Osborn's manual - it's out on loan at the moment.
If your wiring physically checks out fine, then you've just narrowed down your gauge problem to either the sending unit, the gauge itself, or the instrument voltage regulator if equipped. We are very grateful if you leave a comment or suggestions about this 1968 ford fuel gauge wiring diagram post. Copy or use of the images and descriptions from this web site without prior written permission from Mustangs Unlimited is strictly prohibited. This connector will have a female spade bit. It should be standard braided wire, not floppy resistance wire. But according to the diagram of the whole car that follows, it ends up running under the driver's side sill plate. This picture has been published by Alice Ferreira and is in category tags segment.
First thing i did, which i heard was the most common problem, was replace the in-tank sending unit. No wire coming across the right passenger side fender. If you want, you can promote this content for your companion, family, neighborhood, or you can also book mark this page. When i bought it, the guy told me that the fuel gauge is off half a tank. Some time these harnesses were put in because the assembly li9ne ran out of the standard ones but it is the harness only and not the low fuel sending unit. The stock gauges work on the principle of resistance, so there should be only one wire as far as I know.
Its also possible that it comes with the ammeter wiring. This Firewall to Engine Gauge Feed Wiring Harness will fit 1967-1968 Mustangs with 289 or 302 engines. Thats how confused i feel with this problem. Mine does not have it, but indeed also the 2-wire loom from the front above the rear wheel. Each wire was inspected for cracks, frays, nicks, burns, or any other damage.
Its great to finally have a solid answer to that and not have to guess. After the electrical functions have been verified, the harness lengths were adjusted by routing and cutting out excess wire lengths. In no way does Wiring Diagram Pictures claim ownership or responsibility for such items, and you should seek legal consent for any use of such materials from its owner. Ok I bought a painless wiring kit which has been pretty great for most things so far, but I'm having issues with the instrument panel. I'll make a voltmeter test to make sure, I don't put + to it. So at half, its full, and it moves down to empty then back up to half a tank to indicate it being empty. I don't have a spare time in there anyway I'll give the son a call and see what time he get off work.
The 10 pin connector table located at the bottom of Page 6 will aid in tracing wires going into the injector loom. The main plug is probably for the back-up light plus? I copied the wiring table to a spreadsheet and made a checksheet so I could verify each wire correctly. Scroll through to find the part you need info for, such as a coolant temperature sensor, and select the part number. Use zip or twist ties to temp route your wires. Thankfully, this wiring harness is available and contains the correctly colored wires to connect each of the gauges to the appropriate connections in the engine compartment of your Mustang. Make sure the negative terminal of your battery is disconnected.
The instrument gauges themselves have two posts, however the painless diagram seems to call for three posts. At least we all learned a bit more. Maybe this might help in your search. If this is the case then which post is which, when looking at the back of the instrument panel. So you won't see at a car show and I saved a lot of money. Examples of wiring issues we've seen over the years include frayed wiring touching the engine causing a short to ground and the effected gauge to peg high , loose bulkhead connectors at the firewall, and broken wiring at the gauge cluster. Owner Roy was sure, he had more than these 2 with the same drivers side routing.
We will apply it for much better future reports. For example, the water temperature sending unit can be tested for the proper ohm rating with the engine cold and then running at operating temp thermostat open , or you can remove the sending unit from the car and test it in a pan of boiling water. We sincerely hope that what we share with you can be useful. Sorry about the delay mustangbradley, I will try and get some pics up tomorrow. Do not forget to share and love our reference to help further develop our website. The following photos detail the installation: Assembly of bracketry: Bracket was formed up from 18 gage sheet stock using this ; graciously designed and passed forward by Jason5.
I'll try and find an answer. We apologize for this inconvenience and encourage you to visit for the latest on new cars, car reviews and news, concept cars and auto show coverage, awards and much more. Can I just ask, do you use a specific reference for this kind of info, or is it borne out of years of working on unrestored cars? The computer will throw error codes for this but that's ok. The fuel tank wire is a bit softer than the others, I guess the resistance is a matter of concern in this wire. So i started under the car and followed it to my trunk, and somehow, lo and behold, it ends there.